493-495 Diamond St, San Francisco, CA 94114

Located in the Eureka Valley/Dolores Heights neighborhood, 493-495 Diamond Street is a two-unit multi-family residential building constructed in 1917, featuring two stories and classified as a flats & duplex property. The building has undergone several significant improvements in recent years, including a completed reroofing project in 2023 costing $24,205 and the installation of a new HVAC system in 2024. More recent permits from 2024 indicate ongoing infrastructure improvements, including ductwork replacement and electrical upgrades for a heat pump system.

The property has a notable history of maintenance and upgrades, with previous work including window replacements in 1997 and roof work in 1994, though some earlier permits from the 1990s are listed as expired. The building has experienced some compliance issues, most prominently an active violation from October 2021 regarding unpermitted work on wood and concrete retaining walls in the rear yard, which are reportedly retaining soil on a slope and showing signs of failure, creating potential safety concerns. This violation remains unresolved as of October 2023.

The property has also been the subject of complaints regarding unpermitted construction work, particularly concerning a deck on the south side of the building in December 2022. While these issues suggest some ongoing concerns about unauthorized modifications, the more recent permit activity indicates active management of the property's maintenance needs. The building's surrounding area has experienced typical urban issues as documented through 311 calls, including sidewalk graffiti, parking violations, and occasional debris, though these are external to the building itself and appear to be promptly addressed by city services when reported.