3520 Pierce St, San Francisco, CA 94123

The two-unit residential building at 3520 Pierce Street in the Marina neighborhood is a two-story flats and duplex structure built in 1929, currently owned by Matthew Gin Pierce Street I. The property has undergone several significant improvements over the past few decades, with the most recent major upgrades occurring in 2016, including a heating unit replacement and 150-amp electrical service upgrade with new subpanels.

Historical records show multiple reroofing projects, with the latest permitted work occurring in 2014 at a cost of $6,000. In the early 1990s, the building underwent substantial modifications including foundation repairs and an attempt to legalize existing rooms on the first floor, though some permits from that period ultimately expired.

The building has experienced significant parking-related issues in recent months, with a total of ten complaints about driveway blocking through the third quarter of 2025. These incidents resulted in five citations being issued between November 2024 and January 2025, while enforcement officers were unable to locate the offending vehicles in five other cases. While these parking enforcement activities do not directly impact the building's structural integrity or resident services, they may indicate ongoing parking management challenges in the surrounding area.