One of my passions is San Francisco architecture. I have researched hundreds of architects who were practicing in San Francisco between 1850 and 1950 and have built-up an extensive database of properties and the architects who designed them (over 15,000 so far). I have written profiles on over 100 of the individuals and firms practicing during the first century of San Francisco's growth. Every other month from January 2001 to May 2006, the New Fillmore neighborhood newspaper published an article of mine on Pacific Heights architects. Those printed are shown below, with the series sequence number in parentheses. A few other profiles I have previously published are also available for your review. If you have interest in, or special knowledge of, a particular San Francisco-based architect, please contact me. If you have a San Francisco property address and wish to know who the architect was, just e-mail me. The fee for the information is minimal. I can also tailor an article to feature that property. If you are thinking of selling or marketing a significant home or apartment building, or a unit in a fine condominium or co-operative apartment building, you need this information to establish the provenance.