St Francis Wood

In 1905, Joseph Mason and Duncan McDuffie pioneered the "planned unit development" concept. In 1912, St. Francis Wood development successfully created an exceptional residential community amid the natural beauty of a 175-acre forest. Incorporating landscape planning, contoured roads, parkways, greenbelts and underground utilities, the residential park won numerous awards and garnered national attention.

Others developments planned by the no longer extant Mason and McDuffie include Claremont & Northbrae.