149-151 Masonic Ave, San Francisco, CA 94118

The two-unit residential building at 149-151 Masonic Avenue is a two-story flats and duplex structure built in 1939, currently owned by Chou Che-hung & Chien Shih-. The property has undergone significant renovations in recent years, with major work completed in 2016-2017 including an extensive interior remodel valued at $100,000 that replaced windows and skylights, removed an elevator, reconfigured storage areas, and remodeled multiple kitchens and bathrooms across the three levels.

This renovation was followed by the installation of new furnaces, water heaters, and laundry facilities, along with comprehensive electrical and plumbing updates. The building's infrastructure was further improved with a service upgrade in 2003 and reroofing work completed in 2014. Recent maintenance and health concerns should be noted, including several 311 calls in 2024 regarding public health and garbage issues, though these were not directly related to building conditions.

The property has experienced recurring graffiti incidents between 2020-2024, primarily affecting building exteriors and nearby infrastructure. Of particular concern are two sewer-related incidents in January 2019, involving flooding and sewage backup issues, though these were reportedly resolved with no further complications noted in subsequent years. While the building has undergone substantial improvements to its systems and interiors, the recurring issues with exterior maintenance and past sewer incidents may be of interest to potential residents.