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.
A Butterfly plan, also known as a Double Suntrap plan, is a type of architectural design in which two or more wings of a house are constructed at an angle to the core, typically at approximately 45 degrees to the wall of the main building.