602–606 Mission Street

1. 1904

   Erected as a ten-story office building with ornate Renaissance and Baroque detail.

   Transit Center District Survey, adopted 2012
2. April 18, 1906

   One of a handful of buildings left standing in the Central SoMa area after the earthquake and fire, most of them steel-framed.

   Central SoMa Historic Context Statement, adopted 2016
3. 1930s

   Remodelled during the Depression-era 'Modernize Main Street' campaign.

   Central SoMa Historic Context Statement, adopted 2016
4. 1931

   Refaced to designs by the architect John V.D. Linden, the failing terra-cotta ornament stripped away and replaced with fluted terra cotta and pared-back Art Deco detail.

   Transit Center District Survey, adopted 2012
5. Sep 1983

   Otc alterations permit.

   Complete Permit 8308908 $$$ $1,450
6. Mar 1985

   Install handicaped toilet, sink, floor, hung ceiling.

   Complete Permit 8502648 $$$ $35,000
7. Mar 1991

   Seismic reinforcement only of building. damaged in earthquake.

   Cancelled Permit 9103429 $$$ $285,000
8. Aug 1993

   Repair brick damaged walls & interior non bearing partitions.

   Complete Permit 9314787 $$$ $67,000
9. Mar 1994

   Revision in cosy permit application 9314787.

   Complete Permit 9404544 $$$ $200,000
10. Jun 1994

    Tenant improvement to existing retail space.

    Complete Permit 9409694 $$$ $85,000
11. Oct 1999

    Oti - 1 ele & l/s.

    Complete Permit 9922442 $$$ $40,000
12. 2008

    Recorded in the city's 2008 survey of the Transit Center District, adopted in 2012, as a contributor to the proposed New Montgomery, Mission & Second Historic District.

    Transit Center District Survey, adopted 2012
13. Jun 2014

    T.i. for 2nd fl., 6ht fl. and 9th floor. per plan. demolition existing partition walls, men and women restrooms. new parition at elevator lobby and conference rooms. new unisex restrooms, new bar sink. mep under separeat permit. maher n/a.

    Complete Permit 201406300041 $$$ $600,000
14. Nov 2014

    8 & 10/f - 1/ demolition partitions as show; 2/ build new paritions as shown 3/ building new uniusex batrhroom on floor 10 4/ building new bar sink on floor 10.

    Complete Permit 201411242369 $$$ $95,000
15. Feb 2015

    Voluntary repair to existing floor structure.

    Complete Permit 201502118060 $$$ $75,000
16. May 2015

    7th floor: demolition existing partitions, doors, finished, fixtures. construt new partitions, add unisex bathroom. maintain separated path of egress at elevator lobby with 2 hr. rated smoke partition. maher n/a. mep & life safety deferred.

    Complete Permit 201505075635 $$$ $180,000
17. May 2015

    6th, 9th and 10th floor: concrete patching at existing floor slabs. repair concrete spalls on topping slabs. no demolition/removal of existing framing members. maher n/a.

    Complete Permit 201505075601 $$$ $150,000
18. Jun 2015

    8th & 10th floor - revision to appl #2014.1124.2369 - elevator lobby dimension changes, entry door at tenant space changes to a single door. life safety deferred.

    Complete Permit 201506108637 $$$ $8,000
19. Jun 2015

    2nd floor - install new lighting refer to permit application 2015.0423.4485.

    Complete Permit 201506108634 $$$ $30,000
20. Jul 2015

    Voluntary supplemental support / additional steel posts added @ rear of each floor.

    Complete Permit 201507080912 $$$ $225,000
21. Jul 2015

    Electrical and lighting work associated with permit application 201505075635 and 201507091057.

    Complete Permit 201507101198 $$$ $50,000
22. Jul 2015

    10th floor - new lightig & power, ref permit application 2014.1124.2369.

    Complete Permit 201507201934 $$$ $65,000
23. Aug 2015

    9th floor: new power and lighting. ref pa 2015 0610 8636, 2015 0630 0041, 2015 0720 1932.

    Complete Permit 201508124037 $$$ $32,000
24. Aug 2015

    8th floor: new power and lighting, ref pa 2014 1124 2369, 2015 0610 8637, 2015 0709 1060.

    Complete Permit 201508124038 $$$ $32,000
25. Oct 2015

    6/f: new partition walls, new ada bathroom, 2 hour smoke partitions @ elevator lobby. new tenant entry door. mechanical, electric and plumbing under sparate application. life safety permits separate.

    Complete Permit 201510169948 $$$ $200,000
26. Oct 2015

    7th floor: voluntary installations of redundant vertical load path at one location work consist of work from 8th floor down to 6th.

    Complete Permit 201510281015 $$$ $40,000
27. Feb 2016

    6th floor: revision to 2015-1016-9948, add (4) new offices. mechanical/fire sprinklers and alarm under separate permit.

    Complete Permit 201602099175 $$$ $40,000
28. Jan 2019

    Replace existing heating/cooling system with new 4-zone split system. install new condensate drains to existing drain.

    Issued Permit 201901109999 $$$ $25,000
29. Aug 2025

    Spec ti (architectural scope) 3rd and 4th floor. non structural interior construction and installation of new finishes and restroom inside existing vacant suite with new break room counter.

    Issued Permit 202508153221 $$$ $100,000
30. Feb 2026

    Installation of 2 type-1 ventless hoods (hood mart) for electric cooking equipment (electric fryer and induction range); installation of a two-deck electric pizza oven (type-2 hood already present).

    Complete Permit 202602025058 $$$ $50,000

DBI holds 86 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 86. 2 of them are nominal $1 street-space or sidewalk permits.