4231-4233 20th St, San Francisco, CA 94114

The three-story, two-unit residential building at 4231-4233 20th Street, owned by Ian and Allison Silber, has undergone several significant renovations since 2012, with the most recent work focusing on safety improvements. Most notably, in October 2021, the front stair was modified for proper rise and run compliance, addressing safety concerns (this permit remains in 'Filed' status). Between 2012-2014, substantial interior and exterior improvements were completed, including a comprehensive renovation of both kitchens and bathrooms, window replacements, and exterior siding updates costing over $250,000.

Additional upgrades during this period included electrical system modernization, including the installation of a Tesla wall connector in 2017, plumbing improvements with new furnaces and water heaters, and various structural modifications. Recent activity at the property has primarily involved parking-related issues, with multiple complaints about vehicles blocking driveways in 2022-2024, resulting in several parking citations. There was also a building complaint in 2013 regarding debris in the backyard, though this complaint is listed as not active.

Two 311 service requests related to graffiti and general cleaning were filed in early 2023, with one noting no response from PG&E. The building has maintained compliance with major safety and building codes, with the most recent permitted work in 2021 focusing on stair safety improvements. The property has a documented history spanning over a decade of consistent maintenance and upgrades, with particular attention paid to updating and modernizing both the interior systems and exterior appearance.