Overview: This Old House's team goes to San Francisco to take on a unique project: the conversion of a 1906 church (lately a synagogue) into a home for Mark Dvorak, a store designer, and his fiancee Laurie Ann Bishop. A tour of the building reveals cavernous spaces, an institutional feel, dated systems, but a fantastic view of the Bay. The homeowners invite our host to their current apartment , full of striking furnishings they plan to set off against minimalist palette of finishes in the new building. Architect Barbara Chambers is the ideal professional to help on the project, living and working in a similarly minimalist home of her own design. At the church, she the homeowners thgrough a model of the proposed conversion, complete with a two-car garage in the basement, preserved chapel space, and kitchen, bath, and three bedrooms in the rear, two-story addition, formerly the synagogue offices. General contractor Dan Plummer check out the basement area, with its inadequate seismic enigneering,