510-512 3rd Ave, San Francisco, CA 94118

The property at 510-512 3rd Avenue in San Francisco's Inner Richmond district is a two-story, four-unit multi-family residential building constructed in 1911, currently owned by Chin Winnie. The building has undergone significant maintenance and upgrades over the past two decades, with particular attention to interior improvements in 2011, including a $15,000 kitchen and bathroom remodel on the top floor, followed by associated electrical and plumbing work. More recent improvements include a bathroom renovation in 2017 costing $4,000, which included the replacement of a bathtub and vanity sink in the rear lower unit.

The building has also seen substantial infrastructure work, including a $3,500 foundation repair in 2010 that involved installing plywood, anchor bolts, and repairing damaged foundations at the garage level. A notable green improvement was the installation of a 3.29 kW solar panel system on the roof in 2011, consisting of 14 photovoltaic modules. The property has experienced some maintenance issues, particularly regarding sewage and water systems, with documented incidents in 2021 (sewage backup) and 2016 (water leak) that were resolved by city services.

The building's recent history shows recurring issues with parking violations in the vicinity, with multiple reports of sidewalk blocking between 2020 and 2022, though these are external to the building itself. The structure's overall maintenance record suggests regular upkeep, with no documented safety violations or building code infractions in recent years. The most recent significant improvement was the 2017 bathroom renovation, and there have been no recorded building permits or major maintenance issues in the past six years, indicating a period of relative stability in building operations.