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Local Architecture

Glossary of Architectural Terms

Learn more about South Coast Historic Architectural Styles

Arch
The curved or pointed top on a door or open entryway. Arches come in many different shapes and styles.

Atrium
An inner courtyard of a home or other building that is open to the sky or covered by a skylight.

Balustrade
A rail and the row of balusters or posts that support it, as along the front of a gallery.

Bay, bow and oriel windows
These windows project out from the front or side of a house. Oriel windows generally project from an upper story, supported by a bracket. Bay windows are angled projections that rise up from the ground on the first floor. Bow windows are rounded projections, often formed of the window glass itself.

Bracket
A small supporting piece of wood or stone, often formed of scrolls or other decorative shapes, designed to bear a projected weight, such as a window.

Buttress
A structure, usually brick or stone, built against a wall for support or reinforcement. (commonly found in Gothic architecture)

Casement window
A metal or wooden window that opens outward or inward.

Clapboard
Overlapping horizontal boards that cover the timber-framed wall of a house.

Column
A vertical support; in an order it consists of a shaft and capital, often resting on a base.

Colonnade
A row of columns, usually equidistant.

Cornice
Any projecting ornamental molding that finishes or crowns the top of a building, wall, arch, etc.

Crenellation
Indented; notched.

Cupola
A dome, especially a small dome on a circular or polygonal base crowning a roof or turret. Usually only decorative in modern homes. Older cupolas can be reached by stairs.

Dormer window
A window placed vertically in a sloping roof that has a tiny roof of its own. Most often seen in second-floor bedrooms.

Eaves
The underpart of a sloping roof overhanging a wall.

Entablature
The upper horizontal part of an order, between a capital and the roof; it consists of the architrave, frieze, and cornice.

Facade
Any important face of a building, usually the principal front with the main entrance.

Fanlight
A window, often semicircular, with radiating glazing bars suggesting a fan that is placed over a door.

Frieze
The middle part of an entablature, often decorated with spiral scrolls (volutes).

Gable
The triangular upper portion of a wall at the end of a pitched roof. It typically has straight sides, but there are many variations.

Gambrel roof
A roof with one low, steep slope and an upper, less-steep one on each of its two sides, giving the look of a traditional American hay barn.

Georgian
The prevailing style of English architecture during the reigns of George I, II, and III (1714- 1820), based on the principles of the Italian Renaissance architect Andrea Palladio. The style was transported to England by Inigo Jones and Sir Christopher Wren. It became the prototype for the colonial style in America.

Gothic
A style employed in Europe during the thirteenth, fourteenth, and fifteenth centuries; also called pointed. It is characterized by the use of pointed arches and ribbed vaults, piers, and buttresses in the support of its stone construction. The style is best exemplified by the Notre Dame in Paris and the cathedrals of Amiens and Bourges.

Hipped roof
A roof with sloped instead of vertical ends.

Lancet arch
A pointed arch, of which the width, or span, is narrow compared with the height.

Lattice window
A window with diamond-shaped leaded lights or glazing bars arranged like an openwork screen; also, loosely, any hinged window, as distinct from a sash window.

Mansard roof
This roof is flat on top, sloping steeply down on all four sides, thus appearing to sheath the entire top story of a house or other building.

Palladian window
A window with three openings, the central one arched and wider than the others.

Pediment
In a classical-style building, the triangular segment between the horizontal entablature and the sloping roof.

Pilaster
A shallow pier or a rectangular column projecting only slightly from a wall. Primarily decorative.

Romanesque
A style developed in western and southern Europe after 1000 characterized by heavy masonry and the use of the round arch, barrel and groin vaults, narrow openings, and the vaulting rib, the vaulting shaft, and central and western towers.

Rose window
A large circular window, usually glazed with stained glass, having stone tracery radiating from the center, often with intricate petallike patterns.

Shutters
Window or door screens featuring horizontal slats that may be articulated, allowing control over air and light transmission. They are usually made of wood. While they may be hinged, modern exterior shutters are often decorative and remain fixed to the wall alongside the window or door opening.

Transom
Small, usually rectangular or fanlight window over a door. Some transoms open to cross-ventilate a home, while others are only decorative.

Trim
The framing or edging of openings and other features on the facade of a building or indoors. Trim is usually a different color or material than the adjacent wall.

Turret
A small tower, usually starting at some distance from the ground, attached to a building such as a castle or fortress.