3837-3839 20th St, San Francisco, CA 94114

The three-unit multi-family residential building at 3837-3839 20th Street in the Eureka Valley/Dolores Heights neighborhood is a three-story flats and duplex structure built in 1910, currently owned by Robert W & Elizabeth A Crom. The building has undergone several significant maintenance and improvement projects over the past two decades, with the most recent major work including window replacements (2021), main sewer replacement (2021), and installation of dedicated electrical circuits (2017).

Previous maintenance has included foundation repairs (2007), garage and storage area upgrades (2002), water heater replacement (2009), and re-roofing (2001). The property experienced a cluster of fire safety-related violations in January 2012, including issues with handrails, garbage receptacles, combustible storage, fire extinguisher maintenance, and plumbing permits, all of which were abated by February 2012.

A more recent concern arose in February 2014 regarding unpermitted foundation work at the garage level, though this complaint is now listed as not active. The building's infrastructure improvements have generally been properly documented through appropriate permits, including the recent window upgrades and sewer work. Recent 311 calls from 2024-2025 primarily relate to park services and public space issues in the surrounding area, including noise complaints, park rule violations, waste dumping, and sidewalk maintenance matters, which appear to be external to the building's operations and maintenance.