1600–1604 Jackson Street

1. 1908

   Built.

2. May 1982

   Permit 8203869 $$$ $900

   Building use: garage.

3. Apr 1989

   Permit 8906478 $$$ $33,500

   Interior non-structural demolition work.

4. Jun 1991

   Permit 9109707 $$$ $11,500

   Resubmission of parapet correction.refer #8916573.

5. Oct 1992

   Permit 9218907 $$$ $15,000

   Clean up and exploratory demol to permit design of n/interio.

6. Jan 1993

   Permit 9300090 $$$ $26,800

   Fully sprinkle all floors per sffd.

7. Feb 1993

   Permit 9302560 $$$ $10,000

   Revisions to work under appl 9215285/construct.under way.

8. Dec 1995

   Permit 9520521S $$$ $80,000

   Horizontal addition.

9. May 1997

   Permit 9707987 $$$ $6,000

   Revision to 9520521 and 9705414.

10. Aug 1997

    Permit 9715430 $$$ $7,000

    Addition of fire sprinkler system.

11. Mar 1998

    Permit 9803956 $$$ $5,000

    Demolish ductwork at offices/install new ductwork.

12. Jul 2002

    Issued Permit 200207010375 $$$ $5,000

    Barrier removal to comply with n.o. 6/7/2002 to clear complaint #200225310/remodel fitting room.

13. Aug 2012

    Permit 201208086865 $$$ $4,000

    Shoring a protion of the south side of the proposed 1645 pacific ave. project site using a permanent tiedback underpinning system. the tieback will be double corrosion protected.

14. Nov 2019

    Withdrawn Permit 201911217869 $$$ $2,500,000

    Tenant improvements to existing retail space, electrical, plumbing, mechanical, refrigeration, fire protection, finishes, new interior stair, for operation of retail grocery store including food prep.

15. Jun 2024

    Withdrawn Permit 202406214972 $$$ $20,000

    Compliance with accessible business entrance program. ref abe# 202001100826.

16. May 2025

    Issued Permit 202505055840 $$$ $2,880,000

    Ab-004 priority. seismic upgrades and accompanying shell renovations in support of a "personal services" under future t.i. and a-3 occupancy. removal of all interior finishes and non-structural walls; replacement of all existing window and exterior doors; new awning; upgrades to main entry; mep work incl.

17. Jun 2025

    Withdrawn Permit 202506188964 $$$ $2,638,081

    T.i. interior work for personal service (a-3 occupancy) use for building as fitness facility. new demising partitions for exercise studios, locker rooms, office space and services areas. new floor, wall & ceiling finishes throughout. new electrical service, gear, transformer & distribution.

18. Jan 2026

    Issued Permit 202512302935 $$$ $43,059

    Installation of new facu in mgrs office, cell communicator next to panel with pull station and f/a remove annunciator at entrance.relays and modules for existing passenger elvator functions.existing freight elevator not provided with control functions.monitoring modules for f/s rise and duct detectors & control.

19. Jan 2026

    Issued Permit 202601073335 $$$ $97,554

    1st & 2nd floor. relocate 58 and add 12 sprinkler pendent heads. permit no. 2025.0505.5840 & 2025.0505.5841.

20. May 2026

    Issued Permit 202605191523 $$$ $12,000

    (2) electric single face wall sign, "fitness sq ft".

DBI holds 46 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 46. 2 of them are nominal $1 street-space or sidewalk permits. 6 expired or cancelled permits are not shown. FITNESS SF is not trading here as a gym yet: its Polk location page gives October 2026 as the opening date, and on 2026-09-11 only the presale office was open at this address.