800 40th Ave, San Francisco, CA 94121

The property at 800 40th Avenue is a two-unit, two-story multi-family residential building located in San Francisco's Outer Richmond neighborhood, originally constructed in 1922. The building underwent significant renovations in 2013, including a major $74,000 renovation of the second floor that involved converting a dining area into a new kitchen and the kitchen into a third bedroom, along with bathroom renovations.

This project also included the installation of new aluminum windows and comprehensive electrical upgrades. More recently, in late 2023, there was a code violation issued for work done without permits on the third-floor deck/balcony area, which required the installation of new posts and bracing - this issue was subsequently addressed through a permit to add proper support work in December 2023. The building's maintenance history shows regular upkeep, including a 2005 stucco repair and a 2008 sewer pipe repair.

Recent infrastructure issues have been documented through 311 calls, including a sewage backup incident in March 2023 that was resolved by the Public Utilities Commission. Various resolved 311 calls from 2023 to 2025 indicate typical urban living concerns in the neighborhood, such as parking issues, street lighting maintenance, and occasional noise complaints. The building's permit and violation history suggests active maintenance and compliance with building codes, with the most recent violation being addressed promptly through proper permitting procedures.