To identify an architectural style, read the building’s form in a fixed order: roof, massing, window rhythm, then materials. Names like “Georgian”, “Craftsman” or “Brutalist” are labels for bundles of these features that tend to appear together. If you can name the bundle, you can name the style.
This guide gives a method you can apply to any photo or building, a table of clues for twelve common styles, and notes on the mixtures and revivals that cause most mistakes. For longer descriptions of individual styles, see the guide to 15 architectural styles.
The four-step method
Step 1: The roof
Look at the roof first. It is the most visible shape on most buildings and the one hardest to change later.
- Flat or almost flat. Typical of modernism, International Style, Brutalism and much contemporary work. Look for parapets or thin overhanging slabs.
- Low-pitch gable or hip with deep eaves. Common for Prairie, Craftsman, mid-century and Scandinavian-influenced houses.
- Steep gable, often with several crossing gables. Tudor, Victorian, Gothic Revival, many farmhouses.
- Hipped, medium pitch, symmetrical. Georgian, Colonial, Neoclassical.
- Mansard (steep lower slope, flatter upper slope). Second Empire, French-influenced buildings.
- Low clay-tile roof, often with a shallow pitch. Mediterranean, Mission, Spanish Colonial.
- Single-slope (shed) roof. Common in contemporary and mid-century houses; several shed roofs stacked at different heights is a recognisable modernist gesture.
- Barrel vault, dome, folded plate or other sculpted roof. Often marks an expressive or civic building.
Step 2: The massing
Massing is the overall arrangement of volumes. Stand back until the details disappear and describe the silhouette.
- One compact box, often square or somewhat rectangular, with a central entrance: classical and many traditional houses.
- Long, low and horizontal, often with a carport or terrace extending the line: mid-century, Prairie, ranch.
- Stacked and offset boxes with cantilevers and recesses: contemporary modern.
- Asymmetrical cluster of wings and towers: Victorian, Queen Anne, Arts and Crafts.
- Heavy, monolithic block with deep openings: Brutalist.
- Wide, courtyard-centred plan with thick walls: Mediterranean and many vernacular hot-climate buildings.
- Fragmented, colliding volumes that seem unstable: Deconstructivist.
Symmetry is a strong clue. Strict mirror symmetry points to classical, Georgian, Neoclassical and revivals of them. Deliberate asymmetry points to picturesque and modern traditions.
Step 3: Window rhythm
How windows are arranged is as telling as their shape.
- Regular grid of identical tall openings, aligned floor over floor: Georgian, Colonial, Neoclassical.
- Ribbon of horizontal windows running along a façade: modernism, International Style.
- Large panes of glass in a frame, sometimes from floor to ceiling: mid-century, contemporary.
- High narrow windows set near the roofline (clerestory): mid-century, Prairie.
- Small, deep-set openings in thick walls: Mediterranean, vernacular, Brutalist.
- Varied window sizes with no clear pattern: Victorian, Arts and Crafts, and many contemporary houses where windows follow the plan.
- Pointed or arched openings: Gothic and Romanesque revivals, Mission.
- Curtain wall, a continuous glazed skin: office and commercial buildings from the mid twentieth century on.
Step 4: Materials and details
Materials confirm what form suggested.
- Brick, often with visible bond and stone trims: Georgian, Victorian, Colonial Revival.
- Smooth stucco or render, often white or earth-toned: Mediterranean, Mission, modernist white boxes.
- Timber boards or shingles: Craftsman, Scandinavian, modern farmhouse.
- Board-formed or exposed concrete: Brutalist, many modernist civic buildings.
- Steel frame and glass: International Style, high-tech, corporate modern.
- Stone, rough or cut: Tudor, vernacular, many revival and contemporary houses.
- Metal panels and mixed cladding: contemporary.
Treat ornament as the last check. Brackets, columns, shutters and cornices help date a building, but they are the easiest features to add or remove.
Clue table: twelve common styles
| Style | Roof | Massing | Windows | Typical materials |
|---|---|---|---|---|
| Georgian / Colonial | Hipped or side gable, medium pitch | Symmetrical box, central door | Regular grid, tall sashes | Brick, painted timber |
| Victorian | Steep, multiple gables, sometimes towers | Asymmetrical, varied wings | Varied, often bays | Timber, brick, decorative trim |
| Tudor Revival | Steep crossing gables | Asymmetrical, tall chimneys | Small panes, grouped | Brick, stone, half-timber |
| Craftsman / Arts and Crafts | Low gable, wide overhang, exposed rafters | Low, with a deep front porch | Grouped, divided upper panes | Timber, stone piers |
| Prairie | Low hip, very wide eaves | Long, horizontal, tied to the ground | Bands of windows | Brick, timber, stucco |
| Mediterranean / Mission | Low clay tile roof | Courtyard or simple blocks | Arched, deep-set | Stucco, tile, wrought iron |
| Art Deco | Flat or stepped | Vertical emphasis, stepped silhouette | Tall, vertical bands | Stone, metal, geometric ornament |
| International Style | Flat | Clean rectangular volume, often on pilotis | Ribbon or curtain wall | White render, steel, glass |
| Mid-century modern | Flat or low-pitch, wide eaves | Low, horizontal, indoor-outdoor | Large glass, clerestory | Timber, brick, glass, steel posts |
| Brutalist | Flat | Heavy, blocky, expressive | Deep, irregular, rhythmic | Exposed concrete |
| Modern farmhouse | Steep gable, simple | Simple rectangle with attached wings | Tall, evenly spaced | Board-and-batten, metal roof |
| Contemporary | Flat, shed or simple gable | Stacked and cantilevered boxes | Large, plan-driven | Mixed: glass, metal, timber, concrete |
A table like this is a guide, not a verdict. If a building matches the roof and massing columns and then disagrees on materials, it is probably a later renovation or a revival.
Common sources of confusion
Revivals. Colonial Revival, Tudor Revival, Mediterranean Revival and Neoclassical Revival were built mainly in the late nineteenth and twentieth centuries. They reproduce the forms of earlier styles, so a photo cannot tell you the date. Look for signs of modern construction: very regular detailing, large garage volumes, picture windows in a “colonial” façade.
Mixed styles. Many buildings combine a main form of one style with details from another. Describe both: “Craftsman massing with Tudor half-timber gables.”
Renovations. Windows, cladding and roofs are replaced more often than structure. A 1960s ranch with new vinyl windows and board cladding can look like a modern farmhouse. Check the roof pitch, the plan shape and the eaves, which are harder to alter.
Regional variants. “Mediterranean” in Spain, Greece and California share traits but not details. A vernacular building (no named architect, built from local materials and traditions) is often better described by region than by a general style name.
Modern as a loose word. “Modern” can mean the early-twentieth-century movement, mid-century modern, or simply “recent”. Use the roof and massing clues: a flat roof with a ribbon window is modernist; a box with a large cantilever and mixed cladding is contemporary.
Worked examples
Example 1. Low, wide house; shallow gable with deep overhangs; a long row of high windows under the eaves; brick chimney; large glass wall to the garden; timber and brick. Roof, massing and windows all point the same way: mid-century modern. The related house-focused guide is Mid-Century Modern Style Guide.
Example 2. Two-storey, five bays across the front, symmetrical, door in the centre, tall sash windows aligned in rows, hipped roof, brick. Georgian or Georgian Revival. If the garage and wide picture windows are modern, the date is later than the style.
Example 3. Tall, narrow volumes with an uneven silhouette; steep gables; wraparound porch; decorative trim at the eaves; different window shapes on each façade. Victorian, probably Queen Anne.
Example 4. Whitewashed volumes, thick walls, small deep-set windows, flat or low-tile roofs, an inner courtyard. Mediterranean or vernacular, depending on region. See the Mediterranean style guide.
Example 5. Offset boxes, one cantilevered over the entrance, a flat roof with a thin edge, large corner glazing, mixed cladding of timber and dark metal. Contemporary modern.
Using the same method when you design
The identification method works in reverse. If you describe a building by its roof, massing, window rhythm and materials, you describe it precisely, whether you are writing a brief for an architect or a prompt for an AI tool. “A modern house” is vague; “a low house with a flat roof and wide overhang, long ribbon windows facing the garden, and a timber and brick palette” is not. The pattern is the same as in AI Architecture Prompts: 30 Examples.
A useful exercise is to take one design and change a single clue at a time. Swap the roof from flat to shallow gable and see how the style label shifts. Change the window pattern from a grid to a ribbon. Change the cladding from brick to timber. In Nuit you can branch from the same image and change only one of these, which makes it easy to see which feature carries the style (see Branching as a Design Exploration Technique). For a floor-plan view of the same idea, see Types of Architectural Drawings Explained.
A one-minute checklist
- What is the roof shape and pitch?
- Is the building symmetrical or asymmetrical?
- Is it low and horizontal, tall and vertical, or compact?
- Are windows in a regular grid, a ribbon, large panes, or irregular?
- What is the main material?
- Which details are original, and which look added?
- Does the date make sense for the style, or is it a revival?
If four answers agree, you have your style. If they disagree, you have a mixture or a renovation, and the honest label is a pair of names.
Related reading
- House Architecture and Design: Roof, Massing, Plan and Materials — the form decisions behind a house
- 15 Architectural Styles: A Practical Guide — longer descriptions of each style
- Mid-Century Modern Style Guide 2026 — one style in depth
- AI Architecture Glossary: 50 Terms — roof, massing and façade vocabulary
- AI Exterior Design from Text in 2026 — describing a building’s form for generation
- Modern School and Commercial Building Design — massing and façade for larger buildings