335-337 18th Ave, San Francisco, CA 94121

The three-story multi-family residential building at 335-337 18th Ave in San Francisco's Central Richmond neighborhood was constructed in 1984 and contains two units, currently owned by Lai Chung Sum. The property has undergone several significant maintenance and improvement projects over the years, with the most recent being a $10,000 foundation stabilization work in 2017 involving the installation of permeating grout underneath the south wall's footing. In 2008-2009, the building experienced two notable enforcement actions: a violation regarding unpermitted construction work at the rear of the building including fire escape replacement and new siding installation, and an alleged unauthorized conversion of a third unit in the ground floor rear area.

Both issues were ultimately resolved through proper permitting and completed work, including repairs to decks and the addition of a new bedroom. The property has maintained regular upkeep, with earlier improvements including window and door replacements, stucco remediation, and various exterior maintenance works. More recently, from 2022 through 2024, there has been a recurring issue with driveway blocking, with multiple complaints filed through 311, particularly noting illegal parking by various vehicles.

These parking violations have resulted in several citations, though officers were often unable to locate the offending vehicles when responding. The building's maintenance history shows attention to structural and exterior elements, with completed permits indicating active management of the property. The most substantial historical work appears to be the 2000 improvements involving window and door replacements and stucco work on the front and back sides of the building, along with a recent focus on foundation stabilization in 2017, suggesting ongoing maintenance of critical building systems.