800-804 Bay St, San Francisco, CA 94109

The two-unit, two-story multi-family residential building at 800-804 Bay Street in San Francisco's Russian Hill neighborhood, owned by Elise H. Yamaguchi, has undergone significant recent activity that warrants attention. Most concerning is an active building violation filed in December 2024 regarding unauthorized demolition work on the second floor unit, involving removal of all interior partitions, wallboard, and fixtures, along with unpermitted structural modifications including new posts and beams.

This follows a pattern of recent modifications, with permits filed in 2023 for both residential unit remodeling (including a new bathroom, kitchen cabinets, electrical, HVAC, and plumbing work) and a change of use conversion from dry cleaner drop-off/pickup to convenience retail, repair floor, and removal of damaged walls and ceilings. The building's systems have seen substantial updates in 2019-2022, including the installation of a new boiler and hydronic system, new electrical service, and completion of the 2010 reroofing project. The property has experienced several regulatory and safety issues in recent months, including multiple complaints about unauthorized work, an unpermitted retail operation, and various building violations.

While there have been no recent fire incidents causing injuries to civilians, the building had a documented smoke scare incident and minor cooking fire contained to a container. The surrounding area has faced typical urban challenges as evidenced by 311 calls throughout 2024, including issues with illegal postings, graffiti, and sidewalk defects, though these are not directly related to the building's condition or ownership. The property has also engaged in licensing processes, with records indicating both approved and on-hold referrals for a liquor license and limited restaurant use, suggesting aspirations for expanding commercial operations beyond the existing retail space.