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.
The Butterfly plan, also called the Double Suntrap plan, is a style of home architecture where two or more wings of the house are built at a 45-degree angle to the central structure.