Richard Sundeleaf

In 2013, the City of Lake Oswego named a new park at 120 State Street Sundeleaf Plaza, in honor of Richand Sundeleaf.

Sundeleaf died on March 8, 1987, at his home in Lake Oswego. His career included over 3000 projects.

Sundeleaf lived in Lake Oswego, Oregon, from 1940 until his death, and he designed many homes in that area. One of the latter, the Dr. Walter Black House, is listed on the NRHP. Around 1930, Jantzen Knitting Mills co-founder Carl Jantzen also commissioned Sundeleaf to design his home in Oswego (now Lake Oswego), and the now-NRHP-listed Carl C. Jantzen Estate used Sundeleaf's designs for its boathouse and bridge. Sundeleaf also designed the NRHP-listed 1934 Paul F. Murphy House, in Northwest Portland.

In 1935, Sundeleaf designed a Tudor-style English cottage for the University of Oregon chapter of Chi Psi in Eugene, Oregon. The Chi Psi Fraternity House was listed on the National Register of Historic Places (NRHP) in 1993. Many of Sundeleaf's English cottages would be constructed in suburban Portland.

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.

After graduation, Sundeleaf returned to Portland. He began working for the firm of A. E. Doyle in 1923 and remained with Doyle for a year. He then worked for four years with the firm of Sutton and Whitney. After working for other architecture firms, he decided to open his own firm in 1928. During the Great Depression, he worked for the Historic American Buildings Survey. During this time he became known for his imaginative work in industrial architecture. He combined his decorative training with a rugged functionalism in a series of distinctive warehouses and offices. In the 1940s, his style changed somewhat when he became a proponent of the Streamline Moderne style, "in which the spirit of the machine age and the concepts of aerodynamics shaped the design of the building", The Oregonian wrote in its obituary of Sundeleaf.

Richard Wilhelm Sundeleaf (February 8, 1900 – March 8, 1987) was an American architect from Portland, Oregon, United States. A number of the buildings he designed are listed on the U.S. National Register of Historic Places.

Sundeleaf was born in Portland's Goose Hollow neighborhood in 1900, and moved at age 6 to a neighborhood just north of Sellwood that was then known as City View Park. After graduating from Washington High School in 1918 he attended the University of Oregon's School of Architecture, in Eugene, graduating in 1923. He trained in the Beaux Arts style of traditional design.