578-580 Arguello Blvd, San Francisco, CA 94118

The two-unit multi-family residential building at 578-580 Arguello Blvd in the Lone Mountain neighborhood is a two-story structure built in 1938 and currently owned by Gloria A. Braas. The property's maintenance history shows regular upkeep over the years, with significant attention paid to infrastructure improvements.

Most notably, in 2015, the building underwent a complete main sewerline replacement, extending up to 23 feet with a new house trap, representing a major plumbing system upgrade. Earlier maintenance work included window improvements, with records showing the replacement of multiple windows in 1998, and the installation of four aluminum windows in 1983, while the earliest known permit from 1995 documented reroofing work. A gas houseline extension project was initiated in 2010 but the permit expired without documentation of completion.

The property experienced two related incidents in early 2016 involving trees allegedly damaging the building, though both cases were investigated by the Department of Public Works and ultimately resolved with no problems found. These were the only reported incidents affecting the building in recent years, with no recurring issues noted. The building's permit history suggests regular maintenance and upgrading of essential systems, though some permits from the 1980s and 1990s are listed as expired without clear confirmation of completion status.