4444 20th Street

1. 1900

   Built.

2. July 1, 1976

   The Office of the Assessor-Recorder photographed the property for tax assessment.

   Assessor-Recorder Photographs (SFP 23), San Francisco Public Library
3. Sep 1986

   Permit 8611783 $$$ $500

   Vertical extension, replace existing wood fence.

4. Apr 1989

   Permit 8906675 $$$ $5,000

   Add 1/2 bath in basement.

5. Apr 1992

   Permit 9206447 $$$ $8,500

   Stair replacement.

6. May 1996

   Permit 9608902 $$$ $1

   Renew expired appl #7910853, #8102164, #8506600, #8702298.

7. Jul 1999

   Permit 9914995 $$$ $6,000

   Horizontal addition.

8. Jul 2000

   Permit 200007135116 $$$ $800

   Revision to application #9914995 as per/plans.

9. Dec 2002

   Permit 200212103227 $$$ $500

   Underpinning work only, 5' section of the side rear wall.

10. Mar 2022

    Permit 202203150005 $$$ $12,850

    Reroofing.

11. Oct 2024

    Issued Permit 202410152978 $$$ $250,000

    New deck and stairs to rear yard. bathroom addition and remodel of kitchen and existing first floor entertainment room. (no new conditioned space).

12. Sep 2025

    Approved Permit 202509084813 $$$ $1

    Revision to 202410152978, field revisions and scope reduction. changes to deck, bathroom layout change. change to french door at deck, tub to shower on 3rd fl.

13. Mar 2026

    Issued Permit 202603026775 $$$ $1

    To keep existing ground floor storage space to be used for storage purposes only. not to be considered habitable space. also remove the wet bar/sink that has previously installed woithout a permit (permit application 2025-0908-4813).

2 expired permits are omitted.