167-169 Cook St, San Francisco, CA 94118

The two-unit residential building at 167-169 Cook Street in the Lone Mountain neighborhood, owned by the Ng & Sun Family Trust, is a two-story flats and duplex structure built in 1926. The property has undergone several significant improvements over the past decade, most notably in 2014 when comprehensive renovations were completed in the kitchen and bathroom areas, including the installation of new plumbing fixtures and electrical systems.

These upgrades, valued at $35,000, involved updating both bathrooms and kitchens while maintaining the existing layout, and were accompanied by a substantial electrical upgrade to a 200-amp main service with multiple panels and various new appliances, including a dishwasher, microwave, and range. The building's maintenance history shows attention to infrastructure, with a reroofing project initiated in 1996, though this permit has since expired.

More recently, there have been two noteworthy infrastructure issues documented through 311 calls: a sewage backup incident in January 2016 that was resolved through the PUC Sewer Operations, and a sidewalk defect reported in November 2024 related to tree root damage, which was closed as a duplicate case but was inspected recently. The property appears to be generally well-maintained, with the major renovations of 2014 addressing both aesthetics and core systems, though the age of the roof system (as of 2024) may warrant attention given its 1996 installation date.