600 Montgomery Street

1. Jul 1982

   Additions alterations or repairs.

   Withdrawn Permit 8205766 $$$ $80,000
2. Dec 1989

   T/i for floors 6 thru 9 single tenant.

   Complete Permit 8923438 $$$ $3,500,000
3. Sep 1998

   Oti 1 6th floor me sp l/s.

   Complete Permit 9817444 $$$ $1,400,000
4. Apr 1999

   Oti-1 el me ls sp 12/f.

   Complete Permit 9907136 $$$ $1,800,000
5. Apr 1999

   Oti-1 el me ls sp 13/f.

   Expired Permit 9907138 $$$ $1,800,000
6. Jan 2003

   Street space.

   Issued Permit M22696 $$$ $1,800,000
7. May 2013

   7th floor-tenant improvement including upgrades to restrooms and a occupancy area. life safety & fire sprinkler under seperate permit.

   Complete Permit 201305106662 $$$ $950,000
8. May 2013

   8th floor-tenant improvement including upgrades to restrooms. life safety & fire sprinkler under seperate permit.

   Complete Permit 201305106664 $$$ $950,000
9. Dec 2015

   16th fl: commercial remodel includeing landlord & tenant work include upgrades to restrooms & demolition of non-structural partitions, millwork, ceilings, light fixtures and electrical fixtures through out fl. new non-structural act ceilings grid 2x2 light fixutures and downlights in restroom.

   Complete Permit 201512013797 $$$ $1,224,000
10. Jan 2019

    10th fl: interior demolition of non-structural elements, plumbing and lighting. construction of new non-structural partitions, new electrical and new plumbing fixtures. life safety and sprinkler plans submitted separately.

    Complete Permit 201901160508 $$$ $1,700,000
11. Jul 2019

    Alteration of the existing interior steel framing on floors 51-60 to add maintenance platforms at various levels. floors 45-50 voluntary structural strengthening, floors 51-60 voluntary structural strengthening. ab-017 applies to this project.

    Complete Permit 201907105505 $$$ $4,800,000
12. Oct 2021

    Remodel building lobby: entire ground fl storefront, structural and non structural demolition, new structural fl assemblies, new roofing, relocation of fcc room. non structural partition, millwork & finishes. mep deferred.

    Issued Permit 202110049753 $$$ $6,500,000
13. Apr 2022

    Lev 1-3: change of use to restaurant/spa/hotel/exercise space. t.i. including arch/struct/mep to establish commercial kitchen, restrm & office on g-1; restrms, commercial kitchen on lev 1; commercial kitchen, screening rm, bar & business meeting on lev 2; exercise space, guest rms, spa & restrm on lev 3.

    Cancelled Permit 202204071751 $$$ $4,195,659
14. Apr 2023

    Ground floor: deferred submittal for storefront, associated building structural ref permit application 202110049753, installation of entire ground floor storefront system.

    Complete Permit 202304196031 $$$ $3,199,943
15. Dec 2024

    Interior tenant. fit out of office space on level 38. non-structural partitions and ceilings. finishes and millwork.

    Filed Permit 202412096417 $$$ $2,000,000
16. Apr 2025

    23rd & 24th fl: interior alteration of conference rooms, storage areas, enclosed offices, pantries and lan rooms with associated mep, (structural for communicating opening for convenience stairs under separate permit. permit application 2025-0424-5130).

    Complete Permit 202504114225 $$$ $5,500,000
17. Apr 2025

    22nd floor: interior tenant fit out of office space.

    Complete Permit 202504114245 $$$ $2,350,000
18. Apr 2025

    Interior alterations of new tenant fit out of levels 10, 12, and 13 levels. to include conference rooms, and storage areas.

    Complete Permit 202504144304 $$$ $9,800,000
19. Apr 2025

    9th & 11th fl t.i. interior alteration of new tenant fit out included conference rooms, storag aeras, enclosed offices, lan rooms with associated mep & structural work.

    Complete Permit 202504144336 $$$ $6,500,000
20. Jun 2025

    25/f: tenant improvement: new interior non-structural partitions. power outlets.

    Complete Permit 202506058005 $$$ $1,944,000
21. Aug 2025

    Interior tenant fitout of office space on l20 of a 50 story building. non structural partitions and ceilings, finishes and millwork.

    Complete Permit 202508203517 $$$ $2,520,000
22. Aug 2025

    21st fl- interior demolition subject to and interior tenant fit out of office space including non-structural partitions, ceilings, finishes and millwork.

    Complete Permit 202508203523 $$$ $2,190,000
23. Dec 2025

    Interior demolition and construction of interior partitions. mep deferred to separate permit.pantry and coffee point to be defered permit. 18th fl. no food scope in this permit. deferred submisison for health scope will be sent for review at a later date.

    Issued Permit 202512111506 $$$ $2,095,830
24. Dec 2025

    39/f: interior alteration of new tenant fitout to include board room, storage rooms, enclosed and open offices, break room and all gender restrooms, with associated mep work, and selected demolition work.

    Issued Permit 202512151771 $$$ $3,500,000
25. Aug 2026

    Interior tenant fit out of office space on level 19. non-structural partitions and ceilings, finishes and millwork.

    Filed Permit 202608247039 $$$ $2,800,000

DBI holds 989 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 989. 27 of them are nominal $1 street-space or sidewalk permits.