418-422 5th Ave, San Francisco, CA 94118

The property at 418-422 5th Avenue in San Francisco's Inner Richmond district is a three-unit, three-story multi-family residential building constructed in 1900, currently owned by Henry J Wang and Yisheng Yu Liv. The building has undergone several significant maintenance and safety improvements over the past few decades, with the most substantial recent work being a $55,000 voluntary strengthening project permitted in 2018. Recent plumbing work includes gas line repairs in 2022, house trap replacement in 2017, and furnace replacement in 2015.

The building has faced various safety and maintenance challenges throughout its history, most notably a series of fire safety violations in 2004 that required remediation of multiple issues including stair repairs, fire extinguisher placement, smoke detector installation, and removal of egress obstructions. These violations were all abated by March 2005. More recent fire safety concerns were documented in 2019, including violations related to emergency lighting, rated doors, and exit obstructions, all of which were subsequently abated.

The building has also experienced recurring issues with graffiti on both the property and adjacent sidewalk between 2023 and 2024, though these exterior maintenance concerns are typically handled by city services. Recent building systems maintenance has included addressing various plumbing and furnace issues, suggesting ongoing attention to infrastructure needs. The property's permitting history shows regular attention to structural and safety improvements, with most recent permits focusing on voluntary strengthening rather than corrective measures, indicating a proactive rather than reactive approach to building maintenance.