2278-2280 Union St, San Francisco, CA 94123

The three-unit multi-family residential building at 2278-2280 Union Street in Cow Hollow, owned by Trio Investments LLC, has undergone several significant improvements since its construction in 1925. Most notably, in September 2021, the building received window upgrades with the installation of 21 double-hung windows meeting modern U-factor requirements ($17,000 project cost). The property has a documented history of maintenance and improvements, including termite repairs in 1998, an attempt to reroof in 1992 (permit expired), and a storefront replacement along with ADA restroom upgrades in 2008 (permit filed but status unclear).

The building's recent history shows relatively few major issues affecting resident safety or comfort. In the past two years, there have been three notable incidents: a vehicle maintenance noise complaint in July 2024, a loose garbage issue in September 2023, and a defaced parking sign in September 2021, all of which were resolved. The property has experienced recurring issues with illegal postings (2018-2021), though these were external to the building itself.

Other minor incidents have included a sidewalk blockage by display merchandise (2018), a pavement defect (2018), and three defaced signs (2014-2021), with the most recent sign being repaired. A 2014 tree maintenance issue was documented, noting that the tree was privately maintained and required contact with the property owner for pruning requests. The building's permit history indicates regular maintenance and updates, with the most significant recent improvement being the energy-efficient window installation in 2021. The property has maintained compliance with city regulations as demonstrated by the resolution of various complaints and permit approvals, though the status of some older permits (1992 roof work, 2008 storefront work) warrants mention.