601 Diamond St, San Francisco, CA 94114

The two-unit residential building at 601 Diamond Street in Noe Valley, owned by Valerie J. Valdez, has undergone several significant modifications since its construction in 1900. The property has a documented history of addressing both maintenance and improvement projects, including a completed bathroom addition in the top unit (2018), replacement of 21 upper-story windows (2018), and various kitchen and bathroom remodels in both units (1999, 2004).

A major proposed development was filed in 2021 to convert a garage space into two accessory dwelling units, though the current permit status remains "filed" rather than completed. The building experienced notable issues in 2017, including multiple housing complaints related to mold, water damage, and improper occupancy, though all these violations were officially abated by August 2017. Earlier complaints from 1995 regarding illegal units and sanitation issues were also resolved.

Recent building maintenance matters include two cancelled solar panel installation permits in 2015, and various plumbing and electrical upgrades associated with bathroom and kitchen renovations. The property has generated several 311 calls in recent years primarily related to driveway blocking and sidewalk defects, with the most recent activity involving parking enforcement matters in 2024. While the property has experienced periods of maintenance issues, records indicate that these have generally been addressed through appropriate permits and corrections, with most recent work focusing on routine maintenance and accessibility improvements.