150 Post Street

1. 1908

   Built.

2. May 1982

   Permit 8203483 $$$ $5,000

   Additions alterations or repairs.

3. Oct 1985

   Permit 8511420 $$$ $125,000

   Partitions.

4. Apr 1988

   Permit 8805130 $$$ $650,000

   Tenant improvement, bsmnt, ground, 2nd floor.

5. Jul 1988

   Permit 8810607 $$$ $400,000

   Tenant improvement.

6. Jan 2000

   Permit 20000113918 $$$ $1,275,000

   Site permit/scope tenant.

7. Jan 2000

   Withdrawn Permit 20000122748 $$$ $150,000

   Tenant improvement-upgrade existing elevator cab & add additional stop at mezzanine level.

8. Dec 2000

   Permit 200012208356 $$$ $210,000

   Oti-1=me, ls, sp 5th fl only.

9. Oct 2002

   Permit 200210229570 $$$ $110,570

   Corridor & restrm upgrade on floors 3, 4 & 6; finishes & light at corridor, complete restrm upgrade.

10. Feb 2004

    Permit 200402126275 $$$ $190,000

    #740- office t.i., electrical, mechanical. no structural work. no exterior work. fire sprinklers under.

11. Dec 2004

    Permit 200412070820 $$$ $125,000

    Tenant improvement on portion of suite 405 - non structural partitions under grid.

12. Aug 2005

    Permit 200508160363 $$$ $150,000

    Replace boiler.

13. Aug 2006

    Permit 200608220184 $$$ $125,000

    5th floor, suite 500 - demolition interior walls per plan - build new walls to create new offices reception area, break room, relocate lights on 5th floor.

14. Apr 2007

    Permit 200704249467 $$$ $175,000

    Seismic upgrades at elevator walls, terra cotta wall stabilization. no architectural improvements.

15. Oct 2015

    Permit 201510159833 $$$ $155,000

    Basement: replace hvac water chiller. installation of refrigerant monitor.

16. Dec 2015

    Permit 201512185542 $$$ $3,000,000

    Interior t.i. of an existing retail store. add a convenience stair. all other work under separate permit. signage, fire protection, storefront, mep. under seperate permit.

17. Jul 2016

    Permit 201607051591 $$$ $132,000

    Demolition non-structural 9e) walls. alteration and expansion of current suite 320 to suite 310 & 335. fire sprinklers and life safety device modification by design build. 20% ada compliance.

18. Mar 2018

    Permit 201803083201 $$$ $150,000

    Demolition of a switchback communications stairs btwn 1st/2nd. infill 2nd floor opening slab and stair opening. modification of vacant space to include selective demolition and construction of non load bearing partitions.

19. Apr 2018

    Permit 201804136315 $$$ $700,000

    Modification of existing tenant improvmens to include selective demolition and construction of non load bearing partitions, existing modification to gypsum board ceiling, new light fixtures, new switche, new office doors and frames, salvage and reuse of existing selected materials if practicable, millwork.

20. Feb 2020

    Issued Permit 202002103999 $$$ $500,000

    Suite 700; interior tenant improvement only, including new partitons, doors, flooring, ceilng and mep.

21. Jun 2024

    Filed Permit 202406124281 $$$ $210,000

    At gr floor: modification of existing tenant space to health spa. to include selective demolition, construction of non load bearing partitions. new office door, frames, millwork, new sinks, finishes. mep deferred.

22. August 2026

    Union Square Tower Slips to Lender as $73.6M in Debt Goes Unpaid — Hoodline

DBI holds 310 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 310. 4 of them are nominal $1 street-space or sidewalk permits. 5 expired or cancelled permits are not shown.