473 4th Ave, San Francisco, CA 94118

The 4-unit apartment building at 473 4th Ave in the Inner Richmond, owned by Tan Hooi Keow, has undergone several significant events since its construction in 1973. The building faced multiple safety and security violations in 2001, including issues with gas utility shutoff tools, gas meter instructions, exit door locks, fire extinguisher maintenance, and security requirements, all of which were resolved by December 2001.

A 2004 inspection revealed additional concerns, including combustible lint around dryers, the need for seismic bracing of the hot water heater, fire extinguisher recharging, and smoke detector installation requirements, which were also abated by January 2005. The most recent routine safety inspection occurred in 2016, and while there was a reported rodent/insect infestation in 2021, this was addressed through the Department of Public Health's Environmental Health division. The building's maintenance history includes a reroofing project permitted in 1995, though this permit has since expired.

Recent years have seen multiple parking-related incidents near the property, with several complaints about vehicles blocking driveways or parking on sidewalks between 2019 and 2025. There have also been some environmental and sanitation issues reported in the vicinity, including sidewalk cleaning needs and hazardous materials concerns, though these were largely addressed by city services. The most recent building-related interactions have been primarily through routine safety inspections and responses to maintenance issues, suggesting that while the building experienced significant safety violations in the early 2000s, there have been no major recurring violations in recent years.