848-850 Bay St, San Francisco, CA 94109

The property at 848-850 Bay Street in San Francisco's Russian Hill neighborhood is a three-story, multi-family residential building constructed in 1900 and currently owned by Cardinal Bay Properties LLC. The building has undergone significant improvements and faced several challenges over its history. A major upgrade was completed between 2016-2018, including the installation of a roof elevator and retrofit of the rear yard retaining wall ($25,000), followed by garden shed installations in 2019-2021, with the latter representing a resolution to previous complaints regarding an unauthorized structure.

The building experienced substantial utility upgrades in 2007-2008, including comprehensive plumbing and electrical work for new bathrooms, kitchen, and elevator systems, as well as the installation of a new low-pressure boiler and fire sprinkler system. The property has a history of compliance issues that have since been resolved. Notable violations from 2005-2009 involved unauthorized construction of retaining walls and an oversized shed in the rear yard, which were abated through proper permitting and enforcement.

More recent concerns emerged in 2020 regarding a backyard studio installation, but this was addressed through proper permitting processes and final inspections completed in 2022. The building has shown ongoing maintenance and improvement activity over the years, with completed permits indicating attention to both structural integrity and resident amenities. Recent improvements include garden shed revisions (2021), final inspections for earlier work (2022), and consistent updates to comply with current codes. The property's maintenance record suggests active management, with particular attention to resolving past violations and maintaining building safety through regular upgrades and prompt response to regulatory requirements.