3857-3859 20th St, San Francisco, CA 94114

The property at 3857-3859 20th Street is a two-unit, two-story multi-family residential building located in the Eureka Valley/Dolores Heights neighborhood. Built in 1875 and owned by David R Hochschild, this flats and duplex building has undergone several significant improvements over the past two decades.

Most notably, in recent years, there have been multiple issues with driveway blocking, with six documented cases between October and November 2024, some resulting in citations. The building has received substantial infrastructure upgrades, including a complete window replacement project in 2008 (cost: $10,311) and comprehensive solar panel improvements in 2003 (cost: $8,020).

Various roof-related work has been performed between 2002-2003, including reroofing, skylight installation, and a partial remodel, totaling approximately $75,500 in costs. Other notable improvements include a furnace and water heater update in 2011, an electrical service upgrade with two meters in 2003, and interior remodeling work in 2003. The building's maintenance record shows regular upkeep of major systems, though there have been repeated parking enforcement issues recently.