633-639 Hayes St, San Francisco, CA 94102

The 633-639 Hayes Street property is a four-story, six-unit multi-family residential building constructed in 1900, currently owned by Hayes Valley Properties LLC. The building has experienced persistent maintenance and safety issues, with multiple active violations as of 2023, including problems with heating systems, window maintenance, and building security. Most notably, there are several active violation notices from 2016 that remain unresolved, concerning the need for proper heating systems, carbon monoxide detectors, fire escape maintenance, and various other safety requirements.

A more recent serious concern was filed in July 2023 regarding the building's vacant or abandoned status, indicating possible deterioration or lack of occupancy. Additional complaints from early 2023 highlighted issues with rotting window frames and rear stairs, while February 2024 brought up concerns about potential asbestos in the basement. Historical records show that the building has undergone various repairs and compliance work over the years, including stairway repairs in 2002, window sash frame repairs in 2009, and water heater replacement in 2006.

However, many of these repairs appear to have been temporary solutions, as similar issues have re-emerged over time. The property has also faced challenges with unauthorized modifications, including a 2015 complaint about an unpermitted wall construction that affected sprinkler coverage, and multiple complaints about illegal unit conversion and dangerous conditions. Recent 311 calls indicate ongoing community concerns about the building's condition and surroundings, including reports of encampments and general maintenance issues near the property. While some earlier violations from 2006-2009 were addressed, as indicated by completed permits, the persistence of more recent violations suggests continuing maintenance and safety compliance challenges.