3139-3141 Noriega St, San Francisco, CA 94122

The two-unit residential building at 3139-3141 Noriega Street in San Francisco's Outer Sunset neighborhood is a two-story flats and duplex structure built in 1955, currently owned by Cynthia S W Chiu and Des Chiu. The building's documented improvements over the years include several window upgrades in 2000, when four front windows were replaced with vinyl framed insulated versions, and a subsequent similar project that replaced single-glazed aluminum windows with dual-glazed counterparts.

More recent improvements include kitchen cabinet replacement and associated electrical work completed in 2012, with a cost of $800. Historical maintenance records show a reroofing project was undertaken in 1996.

The property has experienced relatively few maintenance issues over the past several years, with only one significant recent incident involving a damaged tree that fell near the property in May 2024, which was promptly resolved. The surrounding area has seen typical urban maintenance issues including graffiti removal in 2020, a streetlight malfunction in 2017, and general street cleaning needs in 2015, all of which were addressed by appropriate city agencies. While the building's permit history shows regular maintenance and upgrades over the decades, there have been no recorded building code violations or serious maintenance issues on file in recent years, and all documented permits have been completed properly, suggesting responsible property management.