3285-3287 21st St, San Francisco, CA 94110

The property at 3285-3287 21st Street is a 5-unit, 2-story multi-family residential building located in the Inner Mission, constructed in 1900 and currently owned by Chen Jie. The building has undergone several significant renovations, with the most recent being a plumbing upgrade completed in January 2024 involving a three-compartment sink and drain pipe replacement.

In 2015, substantial improvements were made to Unit A, including kitchen and bathroom remodels with associated electrical work and the installation of new insulation, costing approximately $21,000. The building experienced a serious sewer issue in 2002 that was resolved by mid-2003, and there have been multiple unauthorized construction complaints over the years, including a 2023 complaint about unpermitted remodeling work.

Recent infrastructure improvements include a gas furnace installation (2015) and various plumbing and electrical upgrades, though there are currently open 311 calls from early 2025 regarding property damage and graffiti. Historical records show past concerns about water seepage affecting neighboring properties (2002), unauthorized electrical work (2002), and various storefront modifications including an awning installation (1997) and sidewalk repairs (2002). The property also holds various planning approvals for fast food and limited restaurant use, and has experienced two fire-related incidents with no civilian injuries recorded.