2420 Pacific Avenue

1. 1908

   Built.

2. December 6, 1973

   The 6,769-square-foot lot held a three-storey one-family dwelling whose top floor contained former servants' bedrooms; a permit had been sought to make it a two-family dwelling with a two-car garage in the front yard.

   San Francisco City Planning Commission minutes, San Francisco Public Library (Internet Archive)
3. December 13, 1973

   By a 5-1 vote, the City Planning Commission approved, on discretionary review, conversion of the single-family dwelling into two units, with off-street parking in the landscaped front set-back behind an automatic ornamental gate.

   San Francisco City Planning Commission minutes, San Francisco Public Library (Internet Archive)
4. Apr 1991

   Permit 9106595 $$$ $2,500

   Vertical addition.

5. Apr 1992

   Permit 9205457 $$$ $10,000

   Penalty only.

6. Apr 1992

   Permit 9207076 $$$ $5,000

   Sun porch at rear of house. (penalty only).

7. Apr 2012

   Permit 201204027333 $$$ $40,000

   Demolition of existing bathroom and remodel 2 new bathrooms with new electric and plumbing in kind.

8. Dec 2012

   Permit 201212035316 $$$ $250,000

   1st floor: interior remodel of kitchen with new windows and includes limited structural basement. reloation of existing 2nd dwellings unit from top floor to basement level. dwelling unit will be reduced in size by 75% from 1958 sq ft to 1468 sq ft. interior renovation througout basement, relocation of.

9. Jan 2013

   Permit 201301107646 $$$ $75,000

   1/fl: remvexistingnon-conform carport struc&addnewgarage door. convert existingint storage rm to garage.reloc 2nd dwelling unit fr 4/fl to 1/fl, redu unit sz 1955to1490 sq ft(23.78% smaller). 2/fl: redu exterior dr on east elev with windw.3/fl: reloc closet.4/fl: remv 2dormers at rear of bld.bld 1 dormer at same loc.

10. May 2015

    Permit 201505277239 $$$ $180,000

    Revision to 201301107646. interior changes at 2, 3, 4th floors. remove, relocate, add skylights. no change in use floor area. add glass rail at 4th fl rear.

11. Jun 2020

    Permit 202006249047 $$$ $2,000

    Removal of drywall patch & replace inkind.

12. Oct 2020

    Permit 202010217019 $$$ $862,000

    Interior remodel & modifications including new elevator & foundation retrofit; minor relocation (without area reduction) of existing housekeeper's unit to accommodate new elevator.

13. Nov 2020

    Permit 202011098509 $$$ $2,000

    To comply with complaint #202051001 - exploratory work to evaluate foundation. remove concrete from basement to expose foundation elements 4x4 sections at each pier. not demolishing or touching any foundation. no exterior work.

14. Feb 2021

    Permit 202102275528 $$$ $862,000

    Exterior modifications including an enlarged balcony at the rear of the building, and a new roof deck with minimum height sliding roof hatch access. this exterior scope of work accompanies an interior scope of work under separate permit application 2020-1021-7019.

15. Feb 2022

    Permit 202202258668 $$$ $63,500

    New fire sprinkler system underground for 4 story residential building per nfpa 13r. ref permit application 202010217019.

16. Jun 2023

    Permit 202306019021 $$$ $5,000

    Installation of dedicated function sprinkler monitoring system for single family dwelling.

17. Sep 2024

    Issued Permit 202409060252 $$$ $90,000

    Replace/repair existing front entry stair cladding in-kind due to leaks & cracking of existing stone cladding on treads & risers. less than 50% repair work.

18. Nov 2024

    Issued Permit 202411205431 $$$ $10,000

    New retaining wall at west property line.

DBI holds 36 permits for this parcel, most of them tenant improvements on individual floors. The timeline shows the 24 largest by stated cost, plus the earliest on file; the DBI query in the sources below returns all 36. 2 of them are nominal $1 street-space or sidewalk permits. 9 expired or cancelled permits are not shown.