491-493 Vermont St, San Francisco, CA 94107

The two-unit residential building at 491-493 Vermont Street in Potrero Hill, constructed in 1924, has undergone several important maintenance and improvement projects over the past three decades. Most notably, in late 2023, the property underwent significant plumbing work with a complete sewer and house trap replacement, addressing important infrastructure needs.

Earlier maintenance included an upper floor window replacement in 2019, where Anderson E-series aluminum-clad wood casement windows were installed, and historical records show the installation of anchor bolts in 1997 and termite repairs in 1992. The building has faced some recent challenges with sewer infrastructure, experiencing two sewage backup incidents in November 2023, though these were promptly addressed by PUC Sewer Operations.

The most pressing current concern involves sidewalk maintenance, with a defect reported in January 2025 attributed to tree root lift. The surrounding area has experienced various municipal issues, as evidenced by multiple 311 calls in 2024-2025, including illegal parking incidents and street cleaning matters, though these external factors do not directly impact the building's structural integrity or resident safety.