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Architecture Glossary

Architecture Glossary

Terms from architectural design, projects and zoning, 3D modelling and rendering, interiors and landscape: clear, accurate explanations of 373 terms.

A

Ablution fountain (şadırvan)
The ablution fountain in a mosque courtyard: a usually polygonal basin with taps around it, often sheltered by a roof or dome on columns.
Accent lighting
Accent lighting picks out an artwork, a textured surface or an architectural detail by lighting it noticeably brighter than its surroundings.
Accessibility
The quality of buildings and public spaces that lets everyone, including disabled and older people, use them independently and safely.
Acoustics
Acoustics is the design of how sound travels, reflects and fades within a space, aimed at clear hearing and protection from unwanted noise.
Adaptive reuse
Giving a historic or existing building that has lost its function a new, compatible use while retaining its original values.
Aerial view
An aerial view shows a building or development from high above, usually at an oblique angle, explaining how it sits within its surroundings.
AI rendering
Producing images with generative AI models from a text prompt or from a starting image such as a sketch, a model screenshot or a clay render.
Albedo
The pure colour of a surface with no shading or reflection; in physics, the share of incoming light that a surface reflects back.
Alem (finial)
An alem is the finial set on the very top of a dome, minaret or conical roof, usually metal, with stacked spheres and often a crescent.
Algorithmic design
An approach in which a design is generated by step-by-step rules, code or visual programming, so the form emerges from a process.
Alternating masonry
A masonry wall in which courses of stone and courses of brick alternate in a regular pattern, giving both structure and rhythm to the facade.
Aluminium composite panel
A light, flat cladding sheet made of two thin aluminium skins bonded to a core, widely used on modern facades and signage.
Ambient lighting
Ambient lighting is the base layer of light that spreads evenly through a room, giving enough light to move around safely and see comfortably.
Ambient occlusion
A shading technique that mimics the soft darkening in corners, crevices and contact points where nearby surfaces block ambient light.
Anastylosis
A repair method that identifies the surviving original pieces of a collapsed structure and returns them to their original positions.
Apse
The semicircular or polygonal space projecting at the end of the nave in a church or basilica, usually covered by a semi-dome.
Arasta (market arcade)
A row of shops lined along a street or passage, usually housing one trade and often built to earn income for a mosque complex.
Arch
An arch is a curved structural element that spans an opening and carries the load above it in compression down to the supports on either side.
Architectural animation
Architectural animation presents a project as a video built from sequential rendered frames, with a moving camera guiding the viewer.
Architectural brief (space programme)
A pre-design document that sets out which spaces a building needs, how large they are and how they should relate to each other.
Architectural competition
A way of choosing a design in which several designers submit proposals for a building or site and an independent jury judges them.
Architectural plan
An architectural plan is a drawing made by cutting a building horizontally and looking down, showing walls, openings and room layout.
Architectural project
An architectural project is the full set of drawings and documents that defines a building's form, layout, materials and construction.
Architectural visualization
Communicating an unbuilt or renovated building through realistic images such as renders, animations and virtual tours.
Area light
An area light emits light from a surface, such as a rectangle or disc, rather than a single point, producing soft, natural shadows.
Ashlar
Building stone cut to regular dimensions with flat faces and square edges, laid in thin joints, and the masonry built from it.
Atrium
An atrium is a multi-storey open space inside a building, usually lit from above, that connects the floors visually around a shared void.
Attic
An attic is the space between a pitched roof and the ceiling of the top floor, used for storage, services or, with enough height, as a living room.
Augmented reality (AR)
Augmented reality (AR) places digital models over a live view of the real world on a phone, tablet or headset screen.
AutoCAD
A 2D and 3D computer-aided design program widely used for technical drawing in architecture and engineering, closely tied to the DWG format.

B

Bağdadi (lath and plaster)
A light, unfilled wall technique in which thin laths are nailed to both faces of a timber frame and covered with lime or gypsum plaster.
Balcony
A balcony is an open platform on an upper floor, projecting from or set into the facade, enclosed by a railing and reached from inside.
Barrel vault
A barrel vault is a half-cylinder covering that runs along a straight line and carries its load continuously into two long side walls.
Base map
A surveyed map showing an area as it currently exists, with buildings, roads, levels and plot boundaries drawn to scale.
Basement
A basement is a storey below the ground floor, wholly or partly below ground level, typically used for storage, parking, plant rooms or living space.
Basilica
A Roman-origin rectangular building type with a tall central nave, lower side aisles and an apse at one end, later the basic church plan.
Bay window (oriel)
A bay window, or oriel, is an enclosed projection on an upper floor, glazed on several sides, that adds light, views and floor space to a room.
Beam
A beam is a mostly horizontal structural member that carries loads from slabs and walls and transfers them to columns or load-bearing walls.
Bedesten
A secure, multi-domed masonry market hall where valuable goods were traded and stored, with thick walls, small high windows and strong doors.
BIM (Building Information Modeling)
A way of working where a building is designed as one shared model of information-rich objects, from which drawings, quantities and coordination come.
Biophilic design
Biophilic design brings people's need for contact with nature into buildings through daylight, plants, water, views and natural materials.
Blender
A free, open-source 3D application that combines modeling, sculpting, animation and rendering tools in a single package.
Block and plot
In Turkish land registry, the ada is the block bounded by roads and the parsel is the registered plot within it.
Bloom and glare
Bloom and glare are lens-like effects that recreate the soft halo and the streaks of light seen around very bright light sources.
Brise-soleil (sun shading)
A brise-soleil is an external shading device of horizontal or vertical fins on a facade that blocks direct sunlight and prevents overheating.
Building coverage ratio
In Turkish zoning, TAKS is the ratio limiting a building's ground footprint relative to the area of its plot.
Building inspection
In Turkish construction, the system that checks a building against its permit, approved drawings and standards from design to handover.
Building permit
In Turkish practice, the official permit issued by the local authority, based on approved drawings, before construction can start.
Built-in appliance
Built-in appliances, such as ovens, hobs, dishwashers and fridges, are fitted into the kitchen cabinetry so that they become part of the units.
Built-in wardrobe
A built-in wardrobe is a fixed cabinet fitted into a wall recess or from wall to wall, often up to the ceiling, so it reads as part of the room.
Bump map
A greyscale height texture that changes how a surface catches light, faking roughness and relief without adding any geometry.
Buttress
A thick masonry mass set against the outer face of a wall to resist the lateral thrust of an arch, vault or dome and carry it to the ground.

C

Camera angle
Camera angle is the framing decision about where the scene is viewed from, at what height and in which direction.
Camera matching
Camera matching sets a virtual camera's position, direction and lens to exactly match the real camera that took a photograph.
Canopy and awning
Fixed canopies and retractable fabric awnings that give outdoor and semi-outdoor spaces protection from sun and light rain.
Cantilever
A structural member supported at only one end, with the other end free, used for balconies, canopies and projecting floors.
Capital
A capital is the crowning element of a column that gathers the load of the arch or beam above and passes it into the shaft, usually decorated.
Caravanserai
A fortified roadside inn on trade routes, built with thick walls and a courtyard to shelter travellers, animals and goods overnight.
Caustics
Bright patterns of light formed when glass, water or shiny metal focuses light onto a surface by bending or reflecting it.
Ceiling medallion
The central ornament of a traditional timber ceiling, carved, built up from slats or painted, that pulls the whole ceiling design together.
Ceramic and porcelain tile
Ceramic and porcelain tiles are durable wall and floor finishes made by shaping and firing clay-based raw materials at high temperature.
Çini (glazed tile)
Decorated glazed ceramic tile, painted with designs and fired under a glaze, used to clad walls, mihrabs, domes and other surfaces.
Circulation
The way people move horizontally and vertically through a building, shaped by its corridors, halls, stairs, ramps and lifts.
Clay render
A clay render replaces every material in the scene with a single matte, usually white or grey, surface to show form and light on their own.
Color palette
A set of coordinated main, secondary and accent colours chosen to be used together in a room or across a whole project.
Color psychology
The study of how colours affect people's mood, perception and behaviour, used to guide deliberate colour choices in design.
Color rendering index (CRI)
A 0–100 score showing how faithfully a light source reveals the colours of objects compared with daylight or a reference source.
Color temperature
Color temperature describes how warm (yellow-orange) or cool (bluish) a light source looks, measured in kelvin.
Column
A column is the vertical structural member of a frame that collects loads from beams and slabs and carries them down to the foundations.
Component
An object defined once and used as many copies in a model; editing one copy updates every other copy linked to the same definition.
Concept design
The early design stage that first sets out a project's main idea: its massing, spatial organisation and character.
Condominium ownership
In Turkish property law, ownership of individual units such as flats or shops in a completed building, together with a land share.
Conservation area
An area protected together with its setting because of cultural or natural value, where new building is subject to special rules.
Conservation plan
A special zoning plan for protected sites that balances conservation and use and sets building, repair and land-use rules.
Consolidation
Intervention that makes a historic building's structure or its decayed materials sound and stable again while retaining original fabric.
Construction detail
A construction detail is a large-scale drawing showing the layers, dimensions and assembly of a building element or junction.
Construction documents
Construction documents are the detailed drawing set that gives contractors every dimension, material and detail needed to build.
Construction servitude (floor easement)
In Turkish property law, a right registered on the land for each future unit of a building not yet completed, tied to a land share.
Construction site
The working area where a building is constructed, holding materials, machinery and crews, and secured by safety measures.
Cornice moulding
A cornice moulding runs along the junction of wall and ceiling, covering the joint and adding ornament or a place to hide indirect lighting.
Corona Renderer
A CPU-based render engine known for producing realistic results with few settings, widely used for architectural interior renders.
Cost estimate
An estimate of what a building or job will cost, found by multiplying take-off quantities by their unit prices.
Countertop
A countertop is the durable work surface that tops the base cabinets in kitchens and bathrooms, used for preparing, washing and cooking.
Courtyard
A courtyard is an open-air space enclosed by buildings or walls, giving the surrounding rooms light, air and a shared centre for daily life.
CPU rendering
Rendering that runs its calculations on the computer's main processor, using system memory so that very large scenes stay stable.
Curtain wall
A curtain wall is a non-structural facade hung from the floors that wraps a building in a continuous skin, usually of aluminium framing and glass.

D

D5 Render
Architectural visualization software that runs in real time using GPU ray tracing and connects live to design programs.
Damage assessment
The study that documents and evaluates the type, location, extent and causes of structural and material decay in a historic building.
Daylighting
Daylighting is the deliberate use of windows, rooflights and reflective surfaces to bring controlled natural light into a building.
Deconstructivism
Deconstructivism is a contemporary architectural movement that challenges order and unity through fragmented forms, tilted planes and broken geometry.
Decoration
Decoration is the work of shaping the mood of a space with mostly movable elements such as color, furniture, textiles, accessories and plants.
Denoiser
A denoiser is a filter that cleans up the grain left by too few samples in a render, giving a clean image in far less rendering time.
Density
In planning, the amount of population or building per unit of land; one of the core decisions of a zoning plan.
Depressed arch
A depressed arch rises less than half its span, giving a low, flat profile; for the same opening it pushes outward harder than a round arch.
Depth of field
Depth of field is the range of distance that appears sharp in an image; the blur outside it adds depth and guides the viewer's eye.
Digital twin
A digital twin is a digital copy of a real building or facility, kept up to date with sensor and operational data to monitor and predict its behavior.
Dimensioning
Adding sizes, distances and levels to an architectural drawing with dimension lines, extension lines and text so it can be built.
Displacement
A rendering technique that actually moves surface geometry according to a height map, creating real relief with silhouette and shadows.
Dome
A curved roof formed by rotating an arch around its vertical axis, spanning a space from above without internal columns.
Dome drum
A dome drum is the cylindrical or polygonal wall below a dome that lifts it above the transition zone and is often pierced by windows.
Double-shell dome
A double-shell dome has two separate shells: an inner dome that forms the ceiling and an outer covering that shapes the silhouette.
Double-skin facade
A double-skin facade is a facade made of two glazed layers with a ventilated cavity between them, used to manage heat, noise and solar gain.
Drainage
Collecting surface water and excess groundwater and carrying it away from buildings and sites through falls, channels, pipes and filters.
Drawing sheet
The standard sheet on which architectural and technical drawings are laid out at a set size and then printed or submitted.
DWG
AutoCAD's native file format, storing 2D and 3D drawing data, layers, blocks and sheet layouts; the most widely shared CAD file in architecture.

E

Eaves
The part of a roof that projects beyond the outer wall, keeping rain off the facade and shading windows from high summer sun.
Electrical project
An electrical project designs a building's lighting, power outlets, distribution, earthing and low-voltage systems.
Elephant foot pier
An elephant foot pier is a massive masonry pier that carries the main dome and its great arches in large domed buildings.
Elevation
An elevation is a drawing of one face of a building in orthographic projection, without perspective, showing it at true proportion.
Eli böğründe (angled bracket)
An eli böğründe is an angled timber or stone bracket that props up a projecting element such as an oriel, eave or balcony from below.
Energy performance certificate
A certificate rating a building's energy use and carbon emissions on a letter scale; in Turkey it is called the Enerji kimlik belgesi.
Enscape
A real-time rendering plugin that runs inside programs such as Revit, SketchUp, Rhino and Archicad and turns the model into a scene you can explore instantly.
Entourage
Entourage is the set of supporting elements, such as people, trees, cars and props, used in architectural images to give scale and life.
Entrance hall
An entrance hall is the space just inside the front door of a home or unit, where people arrive and from which the other rooms are reached.
Ergonomics
Ergonomics is the design of spaces, furniture and fittings around the dimensions and movements of the human body, for comfortable and safe use.
Expansion joint
An expansion joint is a structural gap that splits a large building into independent blocks, letting them move with heat, shrinkage, settlement and earthquakes.
Exposed concrete (béton brut)
Exposed concrete is concrete left as it comes out of the formwork, without plaster or cladding, so its texture and form marks become the finish.
Exposure
Exposure is the setting that controls how much light reaches the camera or render, setting the image's overall brightness and tonal balance.
Eye level
Eye level places the camera at the height of a standing person's eyes, showing a space the way people actually experience it.

F

Facade
A facade is any outward-facing side of a building; it shapes the building's character, how it handles climate and how it reads in the street.
FBX
FBX is a widely used 3D exchange format that can carry geometry, materials, cameras and animation between programs in a single file.
Feasibility study
A study that checks, before an investment decision, whether a project is technically, legally and financially viable.
Fire regulations
Turkey's building fire code: design and construction rules that limit fire spread and make sure people can leave a building safely.
Firefly (render artifact)
Fireflies are isolated, overly bright pixels in a render, caused when rare but very energetic light paths are sampled by chance.
Flat roof (roof terrace)
A roof that looks flat but has a slight fall to carry water to drains, built up in insulated layers and often usable on top.
Floor area ratio (FAR)
In Turkish zoning, the ratio of total buildable floor area to plot area; known as emsal or KAKS, the floor area coefficient.
Floor plan
A floor plan is the plan drawing for one storey of a building, showing its walls, openings, rooms and dimensions.
Floor slab
A floor slab is the horizontal structural element that separates storeys and carries loads to the beams, columns or walls supporting it.
Floor-to-floor height
Floor-to-floor height is the vertical distance from the top of one floor slab to the top of the next; it is not the same as clear ceiling height.
Focal length
Focal length is the millimeter value that sets a lens's field of view: short lengths give a wide view, long ones a narrow, magnified view.
Foundation
The lowest part of a building’s structure, which safely transfers all of its loads into the ground beneath it.
Frame structure
A frame structure carries loads through a framework of columns, beams and slabs, freeing walls from load-bearing so plans can be laid out freely.
Functionalism
Functionalism is the architectural approach holding that a building's form should arise first from its function and the needs of its users.
Furniture layout
Furniture layout is the arrangement of furniture in a room with use, circulation and visual balance in mind, worked out on the plan before anything is bought.
Furniture layout plan
A scaled plan showing where furniture, fittings and equipment sit in each room, with their real sizes and the space needed to use them.

G

Geotechnical survey
An engineering investigation of the ground at a building site, using boreholes, sampling and tests to inform foundation design.
Global illumination (GI)
Lighting calculation that includes light bouncing off surfaces, not only light arriving directly from the source, just as in the real world.
GPU rendering
Rendering that runs its light calculations on the many parallel cores of a graphics card, which makes interactive previews especially fast.
Grasshopper
A visual programming environment inside Rhino that lets designers build parametric and algorithmic designs by wiring components together.
Green building
A building designed and run with care for energy, water, materials and indoor quality, often documented through certification.
Green roof
A roof built up with root barrier, drainage and growing medium layers so that plants can grow across its surface.
Grid line (axis)
A grid line is a named reference line, lettered in one direction and numbered in the other, that fixes where columns and walls sit on a drawing.
Groin vault
A groin vault is formed by two barrel vaults crossing at right angles, gathering its load onto four corner supports along sharp diagonal edges.
Gross floor area
The total area of a building or unit measured to the outer faces of its walls, including the space the walls themselves occupy.
Ground floor
The ground floor is the storey that sits closest to natural or finished grade, usually holding the main entrance of the building.
Group
A container that gathers a set of faces and edges into one object, so that geometry does not merge with the rest of the model.
Grout joint
A grout joint is the gap deliberately left between tiles, stone or panels and filled with a special grout or sealant so the finish lasts and stays aligned.

H

Hammam
A historic bath of cool, warm and hot rooms under domes and vaults, heated from beneath the floor by hot gases from a furnace.
Hardscape
The non-living, built elements of a landscape: paths, paving, walls, steps, pergolas and street furniture, as opposed to planting.
Hayat (open gallery)
A covered, semi-open gallery running in front of the rooms in a traditional house, facing a courtyard or garden and used for living.
HDRI
A high dynamic range image that stores a very wide range of light, often wrapped around a 3D scene to light it and fill the background.
Hımış (timber frame with infill)
A traditional wall system in which the bays of a timber frame of posts, rails and braces are filled with brick, stone or mud brick.
Horasan mortar
A traditional water-resistant, pinkish mortar and render made of lime mixed with crushed or ground brick and roof tile.
Horseshoe arch
A horseshoe arch continues past a semicircle so that its curve turns inward below the springing line, narrowing the opening like a horseshoe.
Human scale
How the dimensions of spaces and building elements relate to the human body, making a place feel comfortable and legible.

I

IES light profile
An IES light profile is a file of measured data describing how a real light fitting spreads light in each direction, used in renders.
IFC
IFC is an open, vendor-neutral exchange format that carries BIM models between software together with their objects and data.
Implementation zoning plan
In Turkish planning, the detailed plan that turns master plan decisions into blocks, building layouts and conditions plot by plot.
Industrial style
An interior style inspired by old factories and warehouses, defined by bare brick, exposed concrete, visible services and metal details.
Instancing
Instancing stores one 3D object's geometry once in memory and repeats it using only position, rotation and scale data for each copy.
Integrated design
Integrated design is a process in which architects, engineers and other specialists work together from day one and make key decisions jointly.
Interior architecture
Interior architecture is the discipline that plans and designs the inside of a building for function, comfort, materials and light, then details it for build.
Irrigation system
Landscape infrastructure that delivers water to plants in a regular, measured way through pipes, drippers, sprinklers and a controller.
Iwan
An iwan is a large vaulted hall walled on three sides and fully open on the fourth, usually facing a courtyard or a central space.

J

Japandi
An interior style blending Japanese restraint with Scandinavian warmth, built on natural materials, calm colours and few possessions.

K

Kalem işi (painted decoration)
Painted decoration applied by brush to plaster, timber or stone surfaces, combining floral, geometric and calligraphic motifs.
Keystone
A keystone is the wedge-shaped stone at the crown of an arch or vault that locks the voussoirs rising from either side into place.
Kitchen island
A kitchen island is a freestanding block of cabinets and countertop placed in the middle of the kitchen, reachable from all sides.
Kitchen work triangle
The kitchen work triangle is a classic planning rule that keeps the links between sink, hob and fridge short, practical and free of obstacles.
Külliye (building complex)
A complex of buildings grouped around a mosque, combining education, health, lodging and trade, and sustained by a charitable foundation.
Kümbet (tomb tower)
A tower-like tomb typical of the Seljuk period, with a burial crypt below, a prayer room above and a conical or pyramidal roof.
Kündekari
A woodworking technique in which small geometric pieces are fitted into grooved strips without nails or glue to form interlocking patterns.

L

Lacquered cabinet door
A lacquered cabinet door is usually MDF finished with multiple coats of paint and lacquer, giving a smooth matte or gloss surface in almost any color.
Laminate flooring
Laminate flooring is a floor covering made by pressing a printed decor layer and a hard-wearing overlay onto a high-density fibreboard core.
Landscape architecture
The profession and discipline of planning and designing gardens, parks and urban open spaces using both natural and built elements.
Landscape lighting
Lighting gardens, parks and outdoor spaces for safety, wayfinding and atmosphere by lighting paths, plants, facades and water features.
Landscape project
A landscape project defines the hard and soft surfaces, planting, irrigation, lighting and levels of the open spaces around a building.
Laser scanning
Laser scanning is a survey method that measures distances with a laser beam and records a building or site as a highly accurate point cloud.
Latecomers’ portico
The covered or semi-open portico in front of a mosque's prayer hall, usually an arcade, where latecomers can pray when the hall is full.
Lattice screen (kafes)
A screen of interwoven timber or metal slats fitted in front of a window or gallery, letting people see out while blocking views in.
Lawn
A landscape surface covered with grasses and mown regularly, giving space for play, rest and an open, calm view.
Layer / tag
An organizing tool that sorts objects in a drawing or model into classes so their visibility and properties can be managed together.
Legend
The key on a drawing or map that explains the symbols, colours, hatches and line types used on it.
Level (elevation datum)
A height value showing how far a point or surface sits above or below the project datum, usually marked as ±0.00.
Level of detail (LOD)
A measure of how detailed a model is: in BIM it describes model maturity, in visualization it means simpler versions of objects for distant views.
Light gauge steel
Light gauge steel framing uses cold-formed galvanized steel C and U sections, screwed together, as a lightweight structural system.
Light portal
A light portal is an invisible helper placed over windows in interior renders, telling the engine where sky light enters the room.
Lighting design
Lighting design is the planning of the amount, direction, color and control of light in a space to suit how it is used and the mood it should have.
Lime mortar
A traditional masonry mortar using lime as binder and sand or similar aggregate as filler, hardening slowly by absorbing carbon dioxide.
Linear lighting
Lighting made with long, slim fittings or LED profiles that emit light along a continuous line rather than from single points.
Lintel
A horizontal member placed over a door or window opening that carries the wall above and passes its load to each side.
Listed building
A building officially registered as a protected cultural asset for its historic, architectural or cultural value, so changes need approval.
Lumen
The lumen is the unit of luminous flux: the total amount of visible light a source gives off in all directions, weighted by the sensitivity of the eye.
Lumion
Real-time visualization software that turns a model from a design program into images, animations and panoramas, helped by a large object library.
Lux
Lux is the unit of illuminance, the amount of light falling on a surface; one lux equals one lumen of light spread evenly over one square metre.

M

Madrasa
A historic college building organised around a courtyard, with student cells, iwans, arcades and a main lecture hall for higher learning.
Mahfil (raised gallery)
A raised platform or gallery inside a mosque, set on columns or brackets and reserved for a specific group such as muezzins or the ruler.
Main dome
The main dome is the largest and highest dome of a domed building, covering the principal space and setting the order of the whole structure.
Masonry construction
Masonry construction relies on load-bearing walls built from stone, brick or block units to carry a building's loads to the ground.
Master development plan
In Turkish planning, the master plan that sets land use, density and main transport decisions and guides the detailed zoning plan.
Material palette
The selection of finishes so their colour, texture, sheen and character work together as one coherent set within a space.
Maximum building height
In Turkish zoning, Hmax is the maximum building height allowed on a plot; how it is measured is set by regulation and plan notes.
MDF
MDF is a medium-density fibreboard made by pressing wood fibres with resin under heat and pressure, giving a smooth, uniform board that is easy to machine.
Measured survey
A measured survey records the current state of an existing building or site by measuring it and drawing it as plans, sections and elevations.
Mechanical (HVAC and plumbing) project
A mechanical project designs a building's heating, cooling, ventilation, water supply, drainage and fire suppression systems.
Mesh
A network of vertices, edges and faces connected into a surface that defines the shape of a 3D object.
Mezzanine
A mezzanine is an intermediate floor built over part of a tall space, staying partly open to the room below instead of dividing it fully.
Microcement
Microcement is a thin, cement-based coating applied in layers to floors, walls and countertops, giving a seamless surface with a concrete look.
Mihrab
The niche set in the centre of a mosque's qibla wall that marks the direction of prayer and in front of which the imam stands.
Minbar
The stepped pulpit to the right of a mosque's mihrab, from which the Friday sermon is given, ending in a small kiosk under a conical cap.
Minimalism
A design approach that reduces a space to its essentials, relying on plain surfaces, few materials and generous emptiness.
Mirror vault
A mirror vault rises in curved surfaces from all four walls of a room and is closed at the top by a flat, horizontal central panel, the mirror.
Modernism
A 20th-century architectural movement that rejected historical ornament in favour of function, new technology and plain geometry.
Modular coordination
A system that sizes a building and its components as multiples of a common basic module so that parts fit without cutting.
Monumental portal
The monumental entrance of a historic building: a framed, recessed and richly carved portal that projects from or rises above the facade.
Moodboard
A design tool that gathers images, colours, material samples and textures on one board to show the intended feel of a project.
Motion blur
Motion blur is the streaking that appears when the camera or an object moves during exposure; in animation it gives smoothness and a sense of speed.
Muqarnas
A three-dimensional composition of small niche-like cells stacked in projecting tiers, used both as decoration and as a transition between surfaces.

N

Narthex
The transverse entrance hall across the front of a church or basilica, forming a threshold between the outside and the main worship space.
Nave
The nave is the central space of a basilican or multi-aisled building, running toward the apse or mihrab, wider and taller than the side aisles.
Net floor area
The actual usable area of a space, measured to the inner faces of its walls, leaving out walls, columns and similar elements.
Normal map
A texture that stores surface normal directions as RGB colours, faking fine bumps and grooves without adding any geometry.
North arrow
The symbol on plans and maps that shows which way is north, so a building's position relative to sun, wind and context can be read.
NURBS
A modeling method that defines curves and surfaces mathematically through control points and weights, giving perfectly smooth curves at any scale.

O

OBJ
OBJ is a simple model format that stores polygon geometry, UV coordinates and normals as plain text, and almost every 3D program can open it.
Occupancy permit
In Turkish practice, the document confirming a finished building matches its permit and approved drawings, so it can be used.
Office layout
The arrangement of desks, meeting rooms, shared areas and support spaces in an office to suit how the organisation and its people work.
Open plan
An open plan combines functions such as cooking, dining and living in one continuous space instead of separating them with walls and doors.
Organic architecture
An approach that treats a building as part of its site and nature, deriving form from landscape, materials and the way it is used.
Orientation
Orientation is the direction a building and its rooms face on the site, relative to sun, wind, views and access.
Ornamental pool
A decorative water feature built for looks, sound and cooling rather than swimming, such as a reflecting pool, fountain or garden pond.

P

Parametric design
An approach where form is defined by linked parameters and rules instead of fixed lines, so changing one value updates the whole design.
Parapet
A low wall rising above the edge of a roof, terrace or balcony; in Turkey the term also covers the wall below a window.
Parcellation
In Turkish zoning, reshaping cadastral plots according to the implementation plan into plots that can be built on.
Parking regulations
Turkey's parking regulation: how many parking spaces a building must provide for its use, and how those spaces should be laid out.
Particleboard
Particleboard is made by pressing wood chips with glue into panels; in Turkey it is widely called sunta and is used heavily for cabinet carcasses.
Passive house
A building standard that cuts heating demand to a minimum through heavy insulation, airtightness and heat-recovery ventilation.
Path tracing
A rendering method that follows light bouncing many times between surfaces using random samples, giving physically accurate images.
PBR material
A material that describes how a surface reacts to light through physical values such as colour, roughness and metalness.
Pendentive
A pendentive is a curved triangular piece of masonry in the corner of a square bay that turns the square into a circle to carry a dome.
Penthouse floor
A penthouse floor is the top storey of a building, set under the roof or stepped back on a flat roof, often with terraces and the best views.
Pergola
A light, open structure of posts and spaced beams that shades gardens and terraces, often covered with climbing plants.
Permit drawings
Permit drawings are the architectural and engineering set submitted to the municipality to obtain a building permit and show code compliance.
Photogrammetry
Photogrammetry is the method of building a measurable 3D model of an object or space from overlapping photographs taken from different angles.
Photomontage
A photomontage places a rendered building into a real photograph of its site, with perspective and lighting matched to the photo.
Photorealism
The quality of a computer-generated image so convincing in light, material and camera behaviour that it could pass for a photograph.
Pier
A pier is a heavy masonry support, thicker than a column and usually square, rectangular or polygonal, that carries arches, vaults or domes.
Plan notes
In Turkish zoning, the written rules that accompany a zoning plan, covering what its drawings cannot show, and are equally binding.
Planting design
The part of landscape design that sets which plants go where, in what numbers and sizes, recorded on a planting plan and schedule.
Plasterboard (drywall)
Plasterboard is a lightweight building board of gypsum pressed between two paper faces, used for partitions, suspended ceilings and wall linings.
Plot amalgamation
In Turkish zoning, tevhit is merging two or more adjoining plots into a single plot in line with the zoning plan.
Plot subdivision
In Turkish zoning, ifraz is dividing one plot into two or more new plots in line with the zoning plan and regulations.
Plugin (extension)
An add-on program installed into a piece of software to give it new tools, objects or abilities such as a built-in render engine.
Point cloud
A point cloud is a dataset from laser scanning or photogrammetry that represents a surface with millions of individual 3D coordinate points.
Pointed arch
A pointed arch is made of two arcs drawn from separate centres that meet at a point at the crown, producing less outward thrust than a round arch.
Polygon
A flat face bounded by vertices and edges; every surface in a 3D model, curved ones included, is built from many polygons.
Post-production
Post-production is the stage after rendering where color, light, atmosphere and detail are refined to finish the image.
Postmodernism
A movement that reacted against modernist austerity by bringing historical references, colour, irony and symbolism back to architecture.
Prayer hall (harim)
The main covered prayer space of a mosque, oriented toward the qibla wall, where the mihrab and minbar stand and the congregation forms rows.
Prefabricated building
A prefabricated building is made from components or modules produced in a factory and then transported and assembled on site.
Preliminary design
Preliminary design is the stage after sketching where the scheme is fixed at scale in plans, sections and elevations, before detailed drawings.
Progress payment
In Turkish contracting, the document that measures work done in a period and prices it under the contract so the contractor is paid.
Proportion
The relationship of a building’s parts to each other and to the whole; a core source of harmony and balance in architecture.
Protected site (sit area)
An area officially protected for its historic, archaeological or urban values, with formally defined boundaries and protection conditions.
Proxy model
A proxy model shows a heavy 3D object as a light placeholder in the scene and loads its full geometry from disk only at render time.

Q

Quantity take-off
Measuring the quantity of every work item from the drawings and listing it with its unit; the basis of any cost estimate.

R

Railing (balustrade)
A protective barrier along stairs, balconies, terraces and galleries that prevents falls and often provides a handhold.
Rain garden
A shallow planted depression that collects rainwater from roofs and paving and lets it soak slowly into the ground.
Ramp
An inclined surface that connects two levels without steps, used by wheelchairs, pushchairs, trolleys and vehicles.
Rasterization
The fast rendering method behind games and real-time engines, which projects 3D triangles onto screen pixels to build the image.
Ray tracing
A rendering technique that traces rays from the camera into the scene to compute reflections, refractions and shadows physically.
Real-time rendering
Rendering that computes many frames per second, so the image updates instantly while you move the camera freely through the scene.
Reconstruction
Reconstruction is the rebuilding of a structure that has been wholly or largely lost, based on reliable documentary evidence.
Reflection
Light bouncing back off a surface; in rendering, the effect that lets glass, metal, polished stone and water mirror their surroundings.
Refraction
The bending of light as it enters a transparent medium such as glass or water, set in rendering by the index of refraction (IOR).
Reinforced concrete
Reinforced concrete combines concrete, strong in compression, with steel bars that carry tension, making the most widely used structural material.
Reintegration
Completing lost parts of a historic building or element on documentary evidence, in a way that remains recognisable as new work.
Render
Generating a 2D image from a 3D model by computing light, materials and camera; the word also means the finished image itself.
Render engine
The software, or the calculation core inside it, that turns 3D scene data into an image by computing light, materials and camera.
Render farm
A network of computers that shares out rendering work, finishing animation frames or large stills far faster than a single machine could.
Render Fun
A free render plugin that runs inside SketchUp and turns the model into a realistic image with GPU-based path tracing.
Render noise
The grainy, speckled look in sampling-based renders such as path tracing, caused by too few samples per pixel.
Render pass (render elements)
Render passes are separate image layers, such as reflections, lighting, depth or material masks, exported alongside the final render.
Renovation project
A renovation project defines changes to an existing building, such as layout, facade, structural or use changes, and is submitted for approval where needed.
Resolution
The number of pixels across the width and height of a rendered image, which sets how much detail it can carry and how long it takes.
Restitution
Restitution is the reconstruction on paper of a historic building's original or earlier state, based on physical traces and documents.
Restoration
Restoration is the repair of a building of historic or cultural value in a way that preserves its authentic qualities and extends its life.
Retaining wall
A structural wall that holds back soil where ground levels change, resisting earth pressure so a slope does not slide or collapse.
Retro style
An interior style that brings the colours, forms and patterns of past decades, especially the mid twentieth century, into rooms today.
Revit
BIM software that models a building with information-rich objects and produces plans, sections, elevations and schedules from one shared model.
Revzen (stucco window)
A decorative window made of a pierced plaster lattice with small pieces of coloured or clear glass set into its openings to filter light.
Rhino
A 3D modeling program that uses NURBS to model free-form surfaces precisely, used in architecture, industrial design and fabrication.
Riwaq (arcaded portico)
A riwaq is a covered, open-fronted gallery carried on a row of columns or piers linked by arches, lining a courtyard or a building front.
Roof plan
A roof plan shows a building's roof from above, defining slopes, ridges and valleys, and the positions of gutters, downpipes and flues.
Room (space)
In Turkish project language, any room or defined space in a building, identified on drawings by its name, number and area.
Roughness
A PBR parameter describing a surface's microscopic texture, which decides how sharp or blurred its reflections appear.
Rubble masonry
A thick load-bearing wall built from irregular, undressed or roughly dressed stones bedded in plenty of mortar.

S

Sampling
Sampling is the render setting that controls how many light paths are traced per pixel, directly trading image cleanliness against render time.
Scale
Scale is the ratio between lengths on a drawing and lengths in reality; at 1:100, one centimetre on paper equals one metre on site.
Scandinavian style
An interior style known for pale colours, light-toned timber, simple forms and plenty of daylight, aiming to feel functional yet warm.
Scatter (object scattering)
Scatter is a modeling and rendering technique that spreads large numbers of objects such as trees, grass or stones over a surface by set rules.
Section
A section is a drawing made by slicing a building vertically, showing floor heights, slabs and how spaces relate in height.
Semi-dome
A semi-dome is half a dome cut by a vertical plane; it buttresses a main dome, extends the space beneath it or covers an apse or niche.
Setback
In Turkish zoning, the distance a building must keep from plot boundaries and the street, set by the plan and regulations.
Setting out
Setting out is the process of transferring a design to the ground by marking plot corners, building grid lines and levels on site.
Shear wall
A long, slender reinforced concrete wall that resists horizontal forces such as earthquakes and wind in a building’s structure.
Shower tray and linear drain
The two main ways to collect shower water: a ready-made tray, or a linear drain set into the floor with a slim grate along its length.
Side aisle
A side aisle is the narrower, usually lower strip of space running alongside the nave, separated from it by a row of columns or piers.
Site plan
A site plan shows a building's position on its plot in relation to roads, neighbouring plots, setbacks, levels and landscaping.
Sketch
A sketch is a quick freehand drawing that captures a design idea on paper or screen, conveying intention rather than precise detail.
SketchUp
A 3D modeling program known for fast, intuitive massing, widely used in architecture, interiors and landscape and extended through plugins.
Skirting board
A skirting board is the profile that runs along the base of a wall, covering the wall-floor joint and protecting the lower wall from knocks and dirt.
Smart home
A home where lighting, heating and cooling, security and appliances can be controlled remotely or automatically through connected systems.
Sofa (central hall)
The main hall of the traditional Turkish house onto which the rooms open, used for circulation and shared living and shaping the plan.
Softscape
The living elements of a landscape, such as trees, shrubs, lawn, ground cover, flowers and the soil they grow in; the partner of hardscape.
Solid wood flooring
Solid wood flooring is made of single pieces of natural timber through its full thickness and can be sanded and refinished several times in its life.
Spolia
Architectural pieces such as columns, capitals, stone blocks or inscriptions taken from an older building and reused in a new one.
Springer
A springer is the lowest stone of an arch, sitting on the pier, column or capital where the curve of the arch begins.
Squinch
A squinch is an arch, niche or half-cone built across the upper corner of a square room, turning the square into an octagon to carry a dome.
Stair landing
A flat platform at the top, bottom or between flights of a stair, used for resting, turning and safe access to doors.
Stair riser
The vertical face between two treads of a stair; its height largely decides how comfortable and safe the stair is.
Stair tread
The horizontal surface of a step that the foot rests on; its depth, nosing and finish decide comfort and slip resistance.
Staircase
A vertical circulation element made of a series of steps that connects floors or areas set at different levels.
Standing seam roof
A standing seam roof is a metal roof whose panel edges are raised and folded together into seams, leaving no exposed fixings.
Steel structure
A steel structure is a building frame whose columns, beams and connections are made of steel sections; it is light, quick to erect and spans far.
STL
STL is a model format that describes surfaces using triangles only, carries no color or material, and is the standard for 3D printing.
Street furniture
Fixtures placed in public open spaces for people to use, such as benches, bins, lamp posts, bike racks, bus shelters and bollards.
Structural project
A structural project sizes a building's load-bearing system by calculation and defines it in formwork and reinforcement drawings.
Sun and sky system
A render engine lighting setup that calculates direct sunlight and diffuse skylight together, both driven by the position of the sun in the sky.
Surface cleaning (conservation)
The controlled removal of dirt, soot, salts, biological growth and harmful layers from historic surfaces without damaging the original material.
Suspended ceiling
A suspended ceiling is a secondary ceiling hung below the structural slab, hiding services and making room for lighting and acoustic treatment.
Sustainable architecture
An approach that designs buildings to reduce their impact on energy, water, materials and the environment across their whole life.

T

Task lighting
Task lighting is a focused layer of light aimed at surfaces where work happens, such as reading, food preparation or desk work, so the eye can work in comfort.
Taşlık (paved entrance hall)
The stone-paved entrance and service hall on the ground floor of a traditional Turkish house, linking stores, stable and stair.
Terrace
A wide, open, level outdoor area at ground level or over a lower floor, set aside for sitting and living outdoors.
Terraced garden
A garden layout that turns sloping ground into usable space by dividing it into level platforms held by retaining walls or banks.
Texture
A 2D image wrapped onto the surface of a 3D model to give it the colour and pattern of materials such as wood, stone or fabric.
Thermal insulation
Thermal insulation is the set of materials and measures applied to walls, roofs and floors to reduce heat loss and heat gain through a building's envelope.
Tie rod
An iron or timber rod set across an arch at springing level, holding its two supports together in tension so the arch cannot spread apart.
Timber frame
Timber frame construction carries loads on a light skeleton of timber studs and joists, braced by sheet sheathing.
Timber lacing (hatıl)
A horizontal timber band or tie beam built into a masonry wall at set heights to bind the wall together and spread loads.
Title block
The information box on a drawing sheet listing the project name, designers, scale, date and sheet number.
Tone mapping
Tone mapping compresses the very wide brightness range of a render into the limited range a screen can show, giving a natural-looking image.
Topography
The shape of the land, its heights, slopes and surface features, and also the work of measuring and mapping them.
Türbe (mausoleum)
A monumental tomb built over the grave of an important person, usually square or polygonal in plan and covered by a dome.
Turkish triangle
The Turkish triangle is a dome transition zone made of faceted, prism-like triangles set in the corners of a square bay instead of a pendentive.
Twinmotion
Real-time visualization software built on Unreal Engine that links directly to design programs and quickly produces images, videos and VR presentations.
Two-point perspective
Two-point perspective keeps vertical lines upright while horizontal lines run towards two vanishing points on the horizon.

U

Universal design
Universal design aims for spaces and products that everyone can use, regardless of age, size or ability, without needing special adaptation.
Unreal Engine
A real-time 3D engine built for games and used in architecture for interactive presentations, virtual reality and configurator applications.
Urban design
The design of the public realm between buildings: streets, squares, parks and the way buildings meet the city around them.
Urban regeneration
In Turkey, the renewal of disaster-prone or run-down buildings and districts through demolition and rebuilding or upgrading.
UV mapping
Unfolding a 3D model's surface onto a flat 2D layout and assigning coordinates so that textures sit on it correctly.

V

V-Ray
A photorealistic render engine that plugs into many 3D and CAD programs and can render on both the CPU and the GPU.
Vault
A curved roof or ceiling formed by extending an arch along a line, spanning the space between two walls.
Ventilated facade
A ventilated facade leaves an air cavity between the insulation and the outer cladding, letting moisture escape and shielding the wall from weather.
Virtual reality (VR)
Virtual reality (VR) places users inside a fully digital environment through a headset, so they can experience a space at real scale.
Virtual tour
A virtual tour lets viewers move through a building or space point by point on a screen or headset, exploring it interactively.

W

Wall panelling
Wall panelling covers all of a wall, or its lower part up to a set height, with panels of wood, MDF or similar materials for protection and character.
Waterproofing
The layers that protect a building from rain, groundwater and water in use, applied to foundations, basements, roofs and wet rooms.
Wet area
Rooms in direct contact with water, such as bathrooms, WCs, showers, kitchens and laundries, needing special waterproofing and plumbing care.
White balance
White balance compensates for the color of the light source so that white surfaces stay white and other colors look natural in the image.
Window and door frames (joinery)
Window and door joinery is the system of frames, sashes, glazing and hardware fitted into wall openings, made from uPVC, aluminium or timber.
Wireframe
Wireframe is a way of displaying a 3D model by its edges and lines only, as a see-through cage with no filled surfaces.
Wood veneer
Wood veneer is a thin slice of real timber glued onto MDF or particleboard, giving the surface of solid wood with far greater stability and lower cost.

X

Xeriscaping
A landscape design approach that cuts water use through drought-tolerant plants, less lawn and efficient irrigation.

Y

Yüklük (bedding cupboard)
A large built-in timber cupboard in the rooms of a Turkish house where bedding was stored by day, often with a small washing cubicle.

Z

Zoning certificate
In Turkish practice, the document from the local authority stating a plot's zoning use and the conditions for building on it.
Zoning plan
In Turkish planning, the approved, binding plan that sets land use, building conditions, roads and public facilities for an area.

0–9

360-degree panorama
A 360-degree panorama is a spherical image covering every direction from one point, which viewers explore by dragging or turning their head.
3D modeling
Building an accurate three-dimensional digital version of a building, space or object; the shared basis for rendering, analysis and fabrication.
3D printer
A 3D printer turns a digital model into a physical object by adding material layer by layer; architects use it for scale models and prototypes.
3ds Max
A 3D program for polygon modeling, animation and rendering, widely used in architectural visualization together with third-party render engines.

Who is this glossary for?

We put this architecture glossary together so you can quickly understand the terms you meet in project drawings or rendering quotes. Whether you are an architecture student, a developer, a homeowner planning a renovation or a designer starting out, each term is explained first in one sentence and then in practical terms.

The terms are grouped into five areas: architectural design and structure; projects, zoning and regulations; 3D modelling and rendering; interiors and landscape; and historic buildings and restoration. The last group covers terms such as iwan, pendentive, the Turkish triangle and the elephant foot pier that come up in survey and restoration work. Some zoning terms come from Turkish practice; since their values depend on each plot’s zoning plan, we explain the concept rather than give figures. If a term is missing, message us and we will add it.

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