4021-4025 Balboa St, San Francisco, CA 94121

The property at 4021-4025 Balboa Street is a three-story multi-family residential building with mixed-use classification, constructed in 1924 and currently owned by Johnny Ho. The building has undergone significant modifications over the past several years, most notably involving the conversion and legalization of dwelling units. In 2018, a first-floor unit was legalized at substantial cost, followed by various permits in 2023-2024 related to the addition of an accessory dwelling unit (ADU) including multiple bedrooms, bathrooms, and living spaces.

Recent work has included the installation of a fire sprinkler system (2024) and modifications to skylights and fire parapets (2024), suggesting ongoing improvements to safety systems. The property has a documented history of compliance issues and unauthorized modifications, most notably during 2006-2007 when there were violations related to the unauthorized conversion of commercial space to residential use, which was subsequently abated. More recent concerns have emerged regarding unauthorized construction work, with complaints filed in late 2023 about work being performed without proper permits and beyond scope, including the conversion of storage space to ADUs.

The building's recent renovation history includes multiple permit filings for corrections and modifications, indicating active ongoing development. There have also been several building complaints regarding unauthorized work, illegal change of use, and plumbing installation issues, with some complaints remaining active as of 2023. The property has experienced recurring issues with parking violations and debris, as evidenced by multiple 311 calls for service between 2022 and 2024, primarily related to sidewalk parking violations.