506-510 Grant Ave, San Francisco, CA 94108

The three-story mixed-use building at 506-510 Grant Avenue, owned by the Mary Tam Revocable Trust, dates back to 1909 and contains three residential units above ground-floor retail space. The property has undergone several significant improvements, including a seismic retrofit in 2001 costing $51,000, reroofing in 1996, and storefront renovations in 1988. Recent developments include major planned renovations filed in December 2024 for unit 506 (kitchen relocation, bathroom remodeling, and new laundry) and unit 510 (kitchen and bathroom remodeling, office addition, and new bathrooms), though the permit shows a cost of $0.

An important safety issue was addressed in 2017 when facade deterioration was reported and promptly abated within a week, and more recently in 2024 the building has been subject to multiple 311 calls regarding sidewalk cleanliness, with several relating to garbage and debris issues. The property has experienced recurring compliance issues, most notably regarding an unpermitted metal roll-down security gate installed in 2022, which triggered multiple complaints and enforcement actions, leading to a filed permit in October 2024 to rectify the situation. Other historical complaints include foundation and exterior wall concerns reported in 2020.

The building's unit configuration and improvements suggest significant investment in maintaining and updating the property, though the recent frequency of garbage-related service requests in late 2024 may indicate ongoing challenges with exterior maintenance or waste management in the vicinity. A tenant buyout was recorded in August 2021 for $35,000. The building's current permit activity primarily focuses on interior improvements, with no recent exterior modifications other than those addressing code compliance issues.