548 26th Ave, San Francisco, CA 94121

The 4-unit, 3-story multi-family residential building at 548 26th Avenue in San Francisco's Central Richmond neighborhood, owned by the Katz Revocable Living Trust, has undergone several significant improvements since its construction in 1988. Most notably, in September 2016, the building received a substantial solar energy upgrade with the installation of three separate rooftop PV systems totaling 11.4 kW.

The property has maintained active upkeep, including a complete reroofing in 2008 ($7,500), window replacements in 2004, and the conversion of a storage room to an exercise room in 2003, which included comprehensive electrical upgrades and the installation of a full-building sprinkler system. The building's safety systems have been tested over the years, with some notable instances requiring attention. In May 2018, the property experienced multiple fire safety inspections addressing alarm systems, extinguishers, sprinklers/standpipe systems, and blocked exits, all of which were promptly corrected by June and July 2018.

Earlier issues from 2002 regarding combustible storage, egress obstructions, and central alarm system repairs were all resolved by July 2002. The building's fire safety infrastructure appears to be generally reliable, with regular maintenance demonstrated through permit records and prompt resolution of violations. The most recent routine inspection in 2011 and a structural complaint in 2008 were both quickly addressed, indicating responsive management to building maintenance and safety concerns.