523-525 43rd Ave, San Francisco, CA 94121

The two-unit residential building at 523-525 43rd Avenue in San Francisco's Outer Richmond district was constructed in 1946 and is currently owned by the Joan A Frost Revocable Living Trust. The property underwent significant improvements in 2018, including a complete remodel of the upper unit's kitchen and bathroom, electrical system upgrades, and the installation of a new 200-amp electrical service with separate 100-amp feeds for each apartment.

This substantial renovation work, valued at approximately $100,000, was prompted by an initial building complaint regarding unauthorized construction without permits in February 2018, which was subsequently addressed through proper permitting channels. The building's maintenance history shows attention to infrastructure needs, including a cancelled 2019 window replacement project, and earlier work from 2002 involving a complete reroofing.

More recent history includes two sewer-related incidents, with the most recent occurring in December 2021 involving a 4-inch sewer vent issue, and an earlier flooding incident in December 2010. The property has experienced minimal surface-level issues, with only four 311 calls recorded in the past decade, primarily related to parking concerns rather than building maintenance problems. The cancellation of several permits in 2018, including a window replacement project and certain electrical work, and the lack of documentation for a kitchen and bath remodel permit filed in 2018, while not directly indicating any safety concerns, suggest that not all proposed improvements were ultimately carried through as originally intended.