1635-1637 Lake St, San Francisco, CA 94121

The property at 1635-1637 Lake Street is a two-unit, two-story multi-family residential building constructed in 1916, currently owned by Hung Yaw-jin. The building has undergone several significant structural modifications and improvements over the years, with the most critical work occurring in 2020 when two separate Notices of Violation were filed regarding potentially unsafe structural modifications, including concerns about unsupported beams and unsafe stair replacements. These violations, filed in March 2020, were eventually abated by January 2025 following the installation of steel beams to support existing framing and the replacement of a backyard staircase with a new steel staircase, for which a $10,000 building permit was issued and completed in July 2020.

The property has a history of maintenance and improvements dating back to 1991, including reroofing, a sewer/housetrap replacement in 2014, and electrical upgrades in 2003 for garage door opener installation and underground service conversion. Additional historical context includes a housing inspection in 1996 regarding an allegedly illegal ground floor unit, which was resolved within two months. The building has experienced multiple parking-related issues in its vicinity, with six documented incidents between 2020-2022 involving vehicles blocking driveways or parking on sidewalks.

Recent maintenance concerns were addressed in 2022-2023, including flooding issues and two tree-related complaints in 2020. The most recent planning approval, dated November 2019, permitted the reconstruction of an existing deck and stair structure with specific conditions regarding firewalls. While there were initial concerns about unpermitted construction work in 2020 that generated multiple complaints, these have been resolved through proper permitting and completion of required structural modifications.