3170-3180 21st St, San Francisco, CA 94110

The three-story multi-family residential building at 3170-3180 21st Street in San Francisco's Inner Mission neighborhood, owned by Antonio & Rita Castellucci, was constructed in 1900 and contains 7 units. The property has experienced recurring maintenance issues over the past several years, with the most significant cluster of violations and complaints emerging in late 2017, including active citations for sanitation problems, lack of carbon monoxide/smoke detectors, plumbing issues, building code compliance, and structural maintenance. A serious structural rot problem was identified in March 2017, though this complaint was marked as not active by June 2017.

More recently, the building is reported to be non-compliant with the soft story seismic safety requirements, with a complaint filed in December 2018 regarding failure to comply with Tier 4 soft story regulations. The building's maintenance history shows several exterior stair repairs across different years (2003, 2018) and various renovation works, including a 2000 project to add commercial stores to the ground floor. The property has been subject to multiple routine housing inspections over the years, revealing persistent maintenance concerns, particularly regarding building systems and structural elements.

Recent records from 2023 and 2024 show ongoing attention to building maintenance and surrounding areas, including multiple reports of garbage and debris issues that have been resolved. There are also two active tree maintenance requests from 2023-2024. While some historical problems have been addressed through various permits and repairs, including exterior stair work and compliance-related renovations, the outstanding violations from 2017 and the soft story non-compliance status represent the most significant current concerns regarding building conditions and regulatory compliance.