310 Union St, San Francisco, CA 94133

The 310 Union Street property is a two-unit residential building located in Telegraph Hill, constructed in 1900 and currently owned by the Michael Dudley Lampen Trust. The two-story building has undergone several significant renovations and maintenance projects over the past decade, with the most recent work in 2023 involving the replacement of three windows ($2,500). Major improvements include a comprehensive window replacement project in 2022 ($16,000) and reroofing work in 2022 ($10,500), with earlier roofing work completed in 2010 ($16,000).

In 2018, a bathroom remodel was completed ($18,000) including plumbing and electrical updates. Two notable incidents in 2022 raised concerns about building safety: a violation regarding improper water heater installation (abated May 2022) and a complaint from a neighboring property about construction activities in December 2021 through February 2022 that reportedly caused building vibrations affecting nearby structures. The building's plumbing system has received attention, with work including water heater replacement, house trap replacement in 2017, and historical records showing garage lateral installation work in 1989.

Recent maintenance issues have emerged, particularly regarding the building's plumbing and sewer systems, with multiple sewage backup incidents reported in 2023 (February, March, and May). The property has also experienced some exterior maintenance requirements, as evidenced by street cleaning requests for glass and debris removal in 2024. Recent building improvements demonstrate ongoing maintenance efforts, including window replacement and roofing work, while building violations and complaints from 2022 indicate periods of construction-related concerns. The property's maintenance history shows regular upkeep, with most permits being properly closed out and completed.