The Goldenberg House is a 1959 unbuilt project by Louis Kahn in Montgomery County. Kahn tries to apply the diagonal as a formal limit in the floor plan arrangement. Along the diagonal the orthogonal structure receives incisions in its outer contour. The central patio is the center of the house and the departing core of the composition. The rooms are ordered functionally. The service rooms with skylights are arranged around the center, while living and bedrooms are located in the facades. The outer rooms have higher, single-pitch roofs so they get sunlight from above and the diagonal appears again in the roof.