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Butterfly plan


A Butterfly plan, also known as a Double Suntrap plan, is a type of architectural plan in which two or more wings of a house are constructed at an angle to the core, usually at approximately 45 degrees to the wall of the core building. It was used primarily in late Victorian architecture and during the early Arts and Crafts movement.

Westwood House, Worcestershire, was a 17-century precursor. After the original, rectangular house was begun c. 1612, four diagonal wings were added at some time later in the same century.

Victorian interest in the plan originated in the 1891 remodelling of Chesters, Northumberland, by Norman Shaw. To the original, square house of 1771 he added five wings; three of these were diagonal, creating suntrap flanks for the south and west fronts.

Notable Arts and Crafts examples:

Westwood House

The Barn

Home Place

Kelling Hall


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