219-223 Missouri St, San Francisco, CA 94107

The 219-223 Missouri Street property is a multi-family residential building located in Potrero Hill, consisting of 4 units in a single-story structure constructed in 1907, currently owned by Karen Lum Revocable Trust. The building has experienced several significant renovations and safety concerns over its history, with the most recent critical violations emerging in October 2024 including inadequate fire safety systems, security issues, and a broken window that were temporarily abated by November 22, 2024.

The property has a documented history of maintenance challenges, including multiple housing code violations related to smoke detection, electrical systems, fire safety, and structural elements. A notable renovation attempt was initiated in 2018 with a $950,000 project to expand the building and add parking facilities, though this generated substantial community concern about unauthorized unit conversions in an RH2 zone, leading to a complaint investigation in 2016. The building's maintenance record shows recurring issues with water damage, bathroom repairs, exterior maintenance, and structural components dating back to the 1990s.

Recent 311 calls from 2020-2024 indicate persistent environmental maintenance issues outside the building, including garbage, hazardous materials, and tree damage on the property. While some historical improvements have been made, including kitchen cabinet replacements in unit 221 (2010) and various compliance repairs in 2011, the frequency and nature of violations suggest ongoing maintenance challenges. Planning records reveal ambitious expansion plans that were ultimately withdrawn, including proposals for a three-story vertical addition increasing square footage from 1,680 to 5,274 square feet, though these plans are no longer active.