1800-1806 16th Ave, San Francisco, CA 94122

The property at 1800-1806 16th Avenue is a two-story, four-unit multi-family residential building constructed in 1929, currently owned by Chris Mak and Tam Renee. The building's recent history shows significant modification activity, particularly between 2018 and 2024, including the attempted addition of accessory dwelling units (ADUs) and seismic safety improvements. In 2018, permits were issued for adding an ADU on the first floor and legalizing an existing unit, with associated work costs totaling over $150,000.

More recently, in July 2024, permits were issued for the recommencement and completion of previously approved work valued at approximately $68,000. The building underwent substantial electrical upgrades in 2007-2009, including service upgrades and the installation of new electrical systems, though several permits from this period expired or were canceled. The property has faced multiple regulatory challenges, including a notable compliance investigation in 2018 concerning unauthorized construction work, and a 2018 fire code violation related to blocked exits that was promptly corrected.

Historical records indicate previous illegal modifications and unauthorized unit additions, leading to administrative penalties and requirements for proper permitting. Recent maintenance issues have been documented through 311 calls, including sidewalk defects and graffiti incidents, though these are primarily exterior to the building structure. The most recent plumbing and electrical work was completed in 2022-2025, though some permits from this period are still pending final inspections. The building's parking situation has drawn past complaints, with records showing concerns about insufficient parking spaces relative to unit density.