230 9th Street is a minimalist house located in San Francisco, California, designed by IwamotoScott Architecture. IwamotoScott was hired to open up and modernize the 6600sf building to prepare it for lease to office tenants. Similar to the neighboring building, the existing condition consists of a concrete structural frame and property line side walls. The front third of the property at the street houses a boxy two story volume with wood infill framing. Adjoining this at the back two thirds is a timber truss hip-roofed structure with a partial mezzanine. The existing condition had the mezzanine and all wood framing closed in with drywall.