1658-1660 10th Ave, San Francisco, CA 94122

The two-unit residential building at 1658-1660 10th Avenue in the Inner Sunset, owned by Herbert M W & June F O Wong, has undergone significant modifications since its construction in 1986. Most notably, from 2016 to 2020, the property underwent a substantial legalization process to convert an illegally constructed ground floor unit into a compliant living space, including the legalization of its kitchen and bathroom facilities.

This process was completed with the installation of a comprehensive fire sprinkler system and a new fire alarm system in accordance with 2021 mandates, with associated electrical and plumbing work totaling over $45,000. The building's recent history shows diligent attention to safety requirements, particularly regarding fire safety systems, with multiple upgrades in 2020 including the addition of smoke detectors, pull stations, and horn strobes.

The property has experienced some community maintenance issues, as evidenced by multiple 311 calls between 2018 and 2022 regarding waste management (toter bins left out) and general street cleaning concerns, though these were mostly resolved through outreach and enforcement. A small cottage food operation, "Harry Banana," was approved for the third floor under the RH-2 zoning regulations. The building's fire incident history shows two alarm activations, both of which were determined to be false or due to system malfunction, with no civilian injuries recorded in either incident.