2450 Union St, San Francisco, CA 94123

The 12-unit, three-story apartment building at 2450 Union St in Cow Hollow, built in 1936 and currently owned by Union Pacific Lp, has undergone numerous improvements and faced several recurring maintenance issues over the past two decades. Most notably, the building has experienced persistent sewer system challenges, with multiple sewer backup incidents reported through 311 calls between 2018 and 2024, including three separate incidents in late 2023 alone. Recent safety upgrades include a completed voluntary system replacement and new horns in 2023 to meet current fire code requirements, along with the installation of pull stations, sounders, and smoke detectors that June.

The building has seen regular unit upgrades, particularly during the 2000s and 2010s, with individual apartments receiving kitchen and bathroom renovations, including Units 102, 203, 202, 104, and 304, typically involving modern amenities such as dishwashers, garbage disposals, and new cabinetry. Historical records show the building experienced heat-related complaints in the late 1990s, when inadequate heating systems were reported as problematic, particularly affecting its senior residents. More recently, fire safety concerns were addressed in 2022 and 2015, though both were resolved promptly.

A boiler replacement attempt in 2014 was recorded as expired status, warranting further investigation into whether this work was ultimately completed. The property's maintenance history reveals consistent attention to upgrading individual units while also addressing building-wide systems, though the recurring sewer issues remain a significant concern. Regular routine inspections by Housing Inspection Services appear to show compliance with housing standards, with issues being addressed in a timely manner.