66 Corwin St, San Francisco, CA 94114

The 5-story, 22-unit multi-family residential building at 66 Corwin Street, owned by Dotterweich Family Trust, was constructed in 1964 and has undergone several significant safety and maintenance upgrades over the years. Most notably, the building completed a mandatory soft-story retrofit in 2015 (Tier 2) which included the installation of new concrete grade beams and shear walls, demonstrating compliance with seismic safety requirements.

The property has experienced recurring heating system issues, with documented complaints about lack of heat in 1995 and 1997, though it has since benefited from major mechanical upgrades including three separate boiler replacements in 2018 (a domestic hot water boiler and two hydronic boilers) and a sewer line re-routing in 2019. Recent records indicate ongoing fire safety maintenance needs, with a current open violation as of November 2023 related to sleeping area requirements, though this follows a pattern of generally prompt corrective actions for previous fire violations such as alarm system maintenance in 2017 and street numbering in 2015.

The building's maintenance history shows numerous window and garage door installations in the early 1990s, roof repairs in 1989, and various plumbing upgrades. The property has generated multiple 311 calls in recent years primarily related to street cleaning and debris issues outside the building, with the most recent being in December 2024 involving human waste or urine. While these exterior maintenance issues are being addressed, they represent ongoing challenges in the immediate vicinity of the property.