1596-1598 28th Ave, San Francisco, CA 94122

The property at 1596-1598 28th Avenue in the Central Sunset neighborhood is a two-story multi-family residential building constructed in 1957, currently owned by the Joana Kwai Woo Revocable Trust. The building has undergone significant improvements in recent years, including the installation of a hydronic heating system in 2024 (costing $15,000), the addition of a new ADU (Accessary Dwelling Unit) at the first floor in 2021 (costing $250,000), and comprehensive fire safety upgrades including 17 new fire sprinklers and underground piping in 2023 (costing $18,244). More recently, a sprinkler monitoring system was installed in 2024 at a cost of $12,723.

These improvements suggest an active commitment to building maintenance and safety upgrades by the current ownership. Of particular note is a tenant complaint filed in February 2023 regarding lack of heating in occupied units, which was reportedly addressed by March 2023. The building has a history of violations related to unauthorized units, with complaints filed in 1998 and 2001 regarding illegal units and inadequate fire exits, though these were marked as abated.

Recent concerns primarily involve exterior maintenance, as evidenced by multiple 311 calls in 2024 regarding garbage and debris, including instances of human waste on or near the property. While these external issues are being addressed through city services, they primarily relate to public spaces rather than the building structure itself. The property has undergone various exterior improvements, including wood siding installation or replacement work in 2017 and 2019, though the most substantial recent work has focused on interior systems and safety upgrades. The building's current configuration and permitted improvements suggest it is being maintained as a multi-family residential property, with significant investments in infrastructure and safety systems over the past few years.