4600-4602 18th St, San Francisco, CA 94114
The property at 4600-4602 18th Street is a two-unit, two-story multi-family residential building constructed in 1900, currently owned by the Jon B Franks Living Trust. The building has undergone several significant improvements over the past decades, including a comprehensive roof replacement with 50-year shingles in 2019 (cost: $23,000), installation of fire sprinklers in the garage and associated electrical work in 2004 (including a $3,800 service installation), and the addition of a solar PV system in 2013.
A notable conversion project was completed in 2001-2004, transforming the basement into a garage and implementing various electrical upgrades, including a 200-amp service installation. Of particular concern are several complaints filed between 2020 and 2021 regarding potential safety violations and unauthorized unit conversions. These complaints, some filed by a retired fire inspector, allege that a previously one-bedroom unit was converted into a 4+ unit configuration with inadequate egress, and included concerns about illegal units and fire safety issues.
While these complaints are listed as "Not Active" in the system, their serious nature warrants attention. The building's maintenance history shows regular upkeep, including roof maintenance and infrastructure improvements, though there have been recent (2024) issues with garbage and debris on the property. The property has also undergone various external infrastructure improvements, as evidenced by multiple street space and sidewalk repair permits, and recent municipal service interactions regarding construction activities and environmental monitoring.
4600-4602 18th St Report Contents
Download Full Report for 4600-4602 18th St
Sign up to download the full building report in PDF or Excel format
Sign Up for FreeBuilding Overview
Building Characteristics
| Total units | 2 |
|---|---|
| Year built | 1900 |
| Total area | 3500 sq ft |
| Floors | 2 |
| Tax Abatements | Home Owners |
| Building Class | F - Flats & Duplex |

Unlock Complete Building History
Get access to comprehensive violation records, court cases, landlord portfolios, and detailed maintenance history for this building and thousands of others.
Key Building Statistics
Included Addresses
- 4600 18th St, San Francisco CA 94114
- 4602 18th St, San Francisco CA 94114
Map and Aerial View of 4600-4602 18th St
Street Map View
Loading street map...
Satellite View
Loading satellite view...
Reviews of 4600-4602 18th St
See what current and past tenants have to say
No reviews yet
Be the first to share your experience living at this property. Your review helps future tenants make informed decisions.
Share Your Experience
Help future tenants by leaving an honest review of this property
Login Required
You must be logged in to leave a review. Join our community and share your experience!
Login to Continue
