1219-1221 21st Ave, San Francisco, CA 94122

The property at 1219-1221 21st Avenue is a two-unit, two-story multi-family residential building located in San Francisco's Central Sunset neighborhood. Built in 1931 and currently owned by Steven Tseng, this flats and duplex building has undergone several significant improvements and maintenance works over the past two decades.

Most notably, in 2020-2021 the building received substantial updates including a ground floor lateral retrofit to comply with San Francisco building codes (costing $72,000), the replacement of two furnaces (with plumbing permit PMW20201105091), and the installation of a standard EV charger (EW202109018098). While there was a cancelled reroofing project in 2022 that had an estimated cost of $12,900, the building had previously received roofing work in 2006 (completed at $3,500) and in 2016 a window replacement was completed in the garage area.

The only documented 311 call related to this property was in September 2020 regarding human or animal waste on the street or sidewalk, which was resolved by the Department of Public Works, though this incident appears unrelated to the building's internal conditions or management. The property's maintenance record shows ongoing attention to both structural and modernisation needs, with particular focus on seismic safety improvements and building systems upgrades.