Richard Wilhelm Sundeleaf (February 8, 1900 – March 8, 1987) was an American architect from Portland, Oregon, United States.
He combined his decorative training with a rugged functionalism in a series of distinctive warehouses and offices.
The Chi Psi Fraternity House was listed on the National Register of Historic Places (NRHP) in 1993.
[5] Sundeleaf lived in Lake Oswego, Oregon, from 1940 until his death, and he designed many homes in that area.
[8] With his wife, Mildred, to whom he was married from 1925 until his death, Sundeleaf also owned a 160-acre (65 ha) ranch in southwestern Montana, acquired in 1956.