3470-3474 21st St, San Francisco, CA 94110

The property at 3470-3474 21st Street is a two-story, four-unit multi-family residential building constructed in 1911, currently owned by Jack G. Nichols Jr. and J.

Novotny. The building has undergone several significant maintenance and infrastructure updates over the past three decades, including a reroofing project in 1994, electrical service upgrades in 2004, and sewer line replacements in 2013. A notable building violation occurred in late 2002 related to fire safety equipment, though this was resolved within a month.

Recent years have seen several resident concerns, including a broken front door lock reported in 2019, construction noise complaints in 2020, and an unusual situation in 2021 involving an allegedly improperly located generator that had reportedly been operating for two years. The building's maintenance history shows regular attention to infrastructure needs, though several recent 311 calls primarily relate to parking issues and street maintenance rather than building-specific problems. A tree inspection in 2021 identified a dead tree that required removal, and a sidewalk defect reported in March 2021 was found to have no obstruction to pedestrian access. The property has undergone routine inspections, including a housing inspection in 2007 and the fire safety violation incident, suggesting regular oversight by City authorities.