417-425 Filbert St, San Francisco, CA 94133
The Fong Family Trust's two-story, six-unit multi-family residential building at 417-425 Filbert Street in Telegraph Hill, constructed in 1907, has undergone several significant maintenance and safety improvements over the years. Most notably, the building completed a mandatory seismic retrofit in 2014 (cost: $40,000) to address soft-story compliance requirements, including ground floor reinforcement and installation of steel strong walls, achieving Tier 3 status. The building has experienced persistent and serious plumbing issues, with multiple complaints between 2020-2022 documenting recurring raw sewage floods, particularly affecting the rear building and common areas where residents access garbage facilities.
These documented plumbing problems, which reportedly occurred "every 4 months" and had persisted for over 11 years according to multiple complaints, including a May 2021 inspection request, indicate significant infrastructure challenges. Recent records show ongoing concerns as of 2024, with multiple fire code violations issued in September 2024, including issues with sprinklers, fire protection equipment access, and door blocking. Historical records demonstrate attempts at building maintenance, including a bathroom remodel permit (2020, cancelled) and sewer line repair/replacement (May 2021, completed), along with some infrastructure improvements like reroofing (2010, cost: $9,970) and gas line installation (2011, completed).
The property has also experienced issues with garbage removal services, documented in a 2017 building violation, and recent reports of abandoned garbage and debris in late 2024. The building's compliance history shows both efforts to meet safety requirements through seismic retrofitting and ongoing challenges with basic infrastructure maintenance, particularly regarding plumbing systems. Multiple housing inspection requests and complaints from 2017 through 2022 indicate significant concern among tenants regarding building maintenance and safety issues, which appear to have persisted into recent years with the discovery of fire code violations.
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Building Characteristics
| Total units | 6 |
|---|---|
| Year built | 1907 |
| Total area | 4510 sq ft |
| Floors | 2 |
| Tax Abatements | None |
| Building Class | A5 - Apartment 5 to 14 Units |

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Included Addresses
- 425 Filbert St, San Francisco CA 94133
- 423 Filbert St, San Francisco CA 94133
- 417 Filbert St, San Francisco CA 94133
- 419 Filbert St, San Francisco CA 94133
- 59 Genoa Pl, San Francisco CA 94133
- 421 Filbert St, San Francisco CA 94133
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