61 Colby St, San Francisco, CA 94134

The two-unit residential property at 61 Colby Street in Portola, owned by Calvin Chac and built in 1938, has experienced several significant maintenance and infrastructure issues over the past few years. Most notably, there was a sewage backup incident from the side sewer vent on December 29, 2024, and a water main issue reported on January 9, 2025.

The building's recent history shows recurring concerns with garbage and debris in the vicinity, with multiple reports filed between October 2024 and January 2025, though these were primarily street-related issues rather than direct building problems. The property has undergone some structural modifications in the past, including floor joist replacements and basement storage space creation in 2001, and a gas houseline extension in 2013.

A tenant buyout was recorded for 39 Colby Street in December 2019, involving one tenant and a payment of $10,000, though no buyout information is provided for 2 Colby Street. The building's maintenance record suggests ongoing attention to both structural and utility systems, with the most pressing recent issues being related to plumbing and waste management.