602 4th Ave, San Francisco, CA 94118

The two-story, five-unit multi-family residential building at 602 4th Avenue in San Francisco's Inner Richmond neighborhood was built in 1906 and has undergone several significant modifications over the years, with the most recent changes focused on construction-related activities that have caused disturbances for residents. The property, owned by Leong Chi Ping&yvonne W Rev, underwent substantial renovations in 2000-2003, including the conversion of the second floor into three dwelling units, installation of new bathrooms, replacement of damaged windows, and various electrical upgrades.

More recent developments include the installation of an automatic fire suppression system in 2009 and plumbing work in 2024 involving the replacement of sewer house traps and main sewer lines. Of particular concern are recurring construction-related complaints from 2023, where residents reported early morning construction work starting as early as 5:00 AM, which violated noise ordinances and negatively impacted the residential units above. These complaints resulted in multiple building inspection cases, with at least one remaining active as of June 2023.

The building has also experienced some infrastructure challenges, including sewage backup incidents in late 2023 and early 2024, though these were addressed by the Public Utilities Commission. Additional maintenance issues have been documented through 311 calls, primarily related to street cleaning and garbage concerns, though these appear to be routine neighborhood maintenance issues rather than building-specific problems. The ground floor of the building has been permitted for commercial use as a restaurant, with the most recent continuation of this use approved under NC-2 zoning regulations.