640 16th Ave, San Francisco, CA 94118

The two-unit, two-story multi-family residential building at 640 16th Avenue in the Central Richmond neighborhood, owned by Wiley John W R, has undergone several significant infrastructure updates since its construction in 1921. Most recently, in November 2024, a complete replacement of the 4-inch sewer pipe was completed, addressing a critical infrastructure issue that had previously affected the property in early 2022 when two separate sewage backup incidents were reported through the Public Utilities Commission.

The building has received several historical improvements, including a completed re-roofing project in 2018 costing $2,500, electrical system upgrades in 2004 involving rewiring and outlet improvements, and window installation work in 1996 (though this permit eventually expired). The property has experienced recurring parking-related issues in recent years, with multiple complaints about driveway blocking and sidewalk parking between 2022 and 2024.

In total, there have been at least seven parking enforcement incidents recorded, with several resulting in citations being issued. The frequency of these parking violations suggests an ongoing challenge in the immediate vicinity, though these are external issues not directly related to the building's structural or maintenance conditions. The most recent building improvements, particularly the sewer pipe replacement in 2024, indicate proactive maintenance of essential systems, though it should be noted that the building's plumbing infrastructure has required attention in recent years.