1415-1417 21st Ave, San Francisco, CA 94122

The property at 1415-1417 21st Avenue in the Central Sunset neighborhood is a two-unit, two-story multi-family residential building constructed in 1938, currently owned by the Ong 1998 Trust. The building has undergone significant improvements over the years, with the most recent major project being an October 2024 permit approval for converting 551 square feet of existing garage space into additional living areas including a living room, study (non-sleeping), and bathroom, along with a communal laundry room, at an estimated cost of $90,000.

In 2021, substantial renovations were completed in Unit 2, including a kitchen remodel and second-floor bathroom updates, with proper plumbing and electrical permits obtained for the work. The building's infrastructure has been maintained with historical records showing foundation replacement in 1994, furnace replacement, and window upgrades in the mid-90s.

The property has experienced recurring issues with driveway blocking, with eight separate citations issued between January and November 2024, suggesting a persistent challenge with parking enforcement in the area. Other recent incidents include a garbage and debris report in November 2024 and a missing side sewer vent cover complaint in June 2024, though some of these cases were either resolved or unable to be located. The building's current planning application, under review as of October 2023, proposes converting 593 square feet of existing ground-level living space into an ADU, including kitchen build-out work.