512 27th Ave, San Francisco, CA 94121

The 6-unit, 2-story multi-family residential building at 512 27th Avenue in the Central Richmond district, owned by the Yang Chung Lang 1992 Trust, was constructed in 1923 and has undergone several significant modifications and faced various regulatory challenges over the years. Most recently, in 2023, the building initiated improvements to comply with the Accessible Business Entrance (ABE) program, including the installation of ADA-compliant door operators and signage, while in 2022 it addressed violations related to unpermitted commercial work by replacing tiles in the restaurant dining area.

The building's maintenance history includes multiple repairs and upgrades, such as a 2016 roof repair of the rear sunroom area, a 2012 voluntary remodel of two bathrooms for accessibility, and various plumbing modifications. The property has experienced several enforcement actions, particularly related to its commercial space (Shai Lai Seafood Restaurant), with multiple complaints about unpermitted work in 2012 and 2022, though these issues were generally resolved through subsequent permits and corrections. A routine 2007 housing inspection revealed numerous violations that were subsequently abated, including security, sanitation, and fire safety concerns.

The building's safety systems have experienced occasional false alarms, with two documented instances of smoke detector activations and one CO detector activation, none resulting in injuries. Recent 311 calls from late 2024 indicate recurring issues with garbage and debris in the vicinity of the property, though these are primarily street-level concerns rather than building-specific problems. The property holds the appropriate licenses for its commercial use, including ABC licenses for on-sale general eating and Type 41 operations, with the most recent ABE compliance work now in progress.