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.

st. francis wood

 1912 photo

Others developments planned by Mason and McDuffie include Claremont & Northbrae.

San Francisco Real Estate

Since 1919

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"Connections and Results"