621 Stockton St, San Francisco, CA 94108
The 23-unit apartment building at 621 Stockton Street in Downtown San Francisco, constructed in 1917, has undergone significant maintenance and improvements over recent years. Most notably, between 2015 and 2021, numerous units (201, 202, 203, 301, 306, and 402) received comprehensive renovations including kitchen and bathroom rehabilitation, and washer/dryer installations, with associated electrical and plumbing upgrades. The building underwent critical safety improvements in 2018, including the installation of a new low-voltage, addressable fire alarm system with full interior notification, pulls, and smokes monitored by cell, plus smoke detector relocations on the first floor.
The property has experienced several maintenance and safety-related issues over the years, including multiple instances of boiler permit renewal violations (2024), some past fire safety concerns such as blocked exits and alarm system issues (2018), and a recent active complaint regarding common areas (2024). Historical violations from 2000-2011 included various building code issues such as lobby lighting, door numbering, and safety concerns, though these have all been marked as abated. The building's fire safety systems have required periodic attention, with recent violations issued in March 2024 regarding UL Certification and alarm system maintenance.
Other infrastructure improvements include main electrical switchboard replacement in 2016 and roof deck repairs. The building is classified as a Tier 2 Soft Story property, with work completed and a CFC issued, indicating compliance with seismic retrofit requirements. Recent plumbing issues have been documented, including sewage back-up incidents in late 2023 and flooding in mid-2024, though these were resolved by City services.
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Building Characteristics
| Total units | 23 |
|---|---|
| Year built | 1917 |
| Total area | 16047 sq ft |
| Floors | 3 |
| Tax Abatements | None |
| Building Class | A15 - Apartment 15 Units or more |

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