4049-4051 Judah St, San Francisco, CA 94122

The two-unit multi-family residential building at 4049-4051 Judah Street in San Francisco's Outer Sunset neighborhood, owned by Charles and Sonia Sin, has a documented history spanning several decades since its construction in 1937. Recent significant issues include a 2022 plumbing incident that resulted in multiple violations, including unauthorized plumbing work, unpermitted water heater installations, and a missing plumbing vent, though these were resolved by October 2022.

The building has experienced recurring maintenance and compliance challenges, with permit records showing efforts to modify interior spaces in the 1980s and 1990s, including partition wall installations and subsequent removal to address violations. The property has been the subject of various infrastructure and maintenance concerns in recent years, particularly during 2022-2023, with multiple 311 calls regarding street conditions, including reports of human/animal waste and graffiti on public areas near the property.

Three shared spaces-related fire complaints were filed between 2020-2021, though they were deferred. External environmental issues have persisted, as evidenced by recent calls regarding damaged property (2024) and sidewalk conditions, while several past complaints about sidewalk cleanliness and debris were resolved by 2024. The building's location and age have contributed to an ongoing need for maintenance and compliance with municipal regulations, particularly regarding unauthorized modifications and infrastructure updates.