20 Heron Street

1. 1931

   Built.

2. Jul 2002

   Permit 200207171665 $$$ $100,000

   Verizon wireless cell site; 12 antennas mounted to roof structure.

3. Oct 2012

   Permit 201210021130 $$$ $9,000

   Install 1 small diesel generator as backup power on roof of the building.

4. Oct 2013

   Issued Permit 201310038365 $$$ $10,500

   Remove / replace 12 existing wireless antenna's with like for like antennas. replacement of coax cable, installation of support equipment for antenna. verizon wireless.

5. Sep 2015

   Permit 201509217494 $$$ $10,000

   Modification to existing verizon wireless site. all interior work inside ti equipment room on roof of building. install 3 pcs rrhs in existing equipment room. install (10 fiber tray at existing equipment rack, remove 3 aws tmas, install 3 diplexers.

6. Jul 2018

   Issued Permit 201807033625 $$$ $20,000

   Ste3755 in existing: installation of (2) 4" conduits appx(205lf), 4 pull cans, (8) 4" cores, (1)1.25" innerduct 25lf, (2)1.5"unistruct hangers, (1) 3/4"muletape in all new & existing conduits/innerduct.no modification to any equipment (antennas, radios, batteries, etc) that would affect the rf status of the site.

7. Feb 2019

   Permit 201902263834 $$$ $60,000

   Verizon modification: install 2 new equipment room partitions; remove 1 existing partition; extend 1 existing equipment room ceiling; install 2 new battery racks; 3 new air cooling units; 1 new power dist. panel; 9 new rrus; other small equip; remove all unused equip.

8. Dec 2019

   Permit 201912068886 $$$ $24,000

   Demolition of interior non-bearing walls per ab-017.

9. Mar 2020

   Permit 202003036027 $$$ $245,000

   New elevator, new communicating stair, ada compliant restroom at each level.

10. May 2020

    Permit 202005077345 $$$ $150,000

    Install fire sprinklers per nfps 13 and install fire underground fire line per nfpa24. ref to building plan 2020 0303 6027.

11. Sep 2020

    Withdrawn Permit 202009124066 $$$ $52,000

    New open-air security gate & new curb cut on rodgers st. plus structural details at 4th fl.

12. Sep 2020

    Permit 202009184472 $$$ $55,000

    Verizon: remove existing 30kw diesel generator and replace with new 80kw diesel generator with new 52 gallon replacement tank; relocate (2) existing condenser units; install (1) new condenser unit; no change to existing antennas or existing batteries.

13. Sep 2020

    Permit 202009234789 $$$ $30,000

    Installation of new fire alarm system for core and shell.

14. Oct 2020

    Permit 202010086198 $$$ $48,000

    New elevator extension to roof deck, plus new vehicle/man door entrance at rodgers st and new property line windows.

15. Mar 2021

    Permit 202103227036 $$$ $120,000

    Vrf equipment and ventilation impovements. ref app#202003036027.

16. Jun 2021

    Permit 202106112208 $$$ $70,000

    Install new lighting in looby, stairwells & restrooms. install new subpanels on each floor. 202012020112. maher n/a.

17. Oct 2021

    Permit 202110281420 $$$ $225,000

    New interior wall partitions, ada shower, kitchenetts and pendant lighting on 1st to 4th floor.

18. Jan 2022

    Permit 202201286920 $$$ $6,850

    1st fl - modification of existing fire sprinkler system per approved building plans 2021-1028-1420.

19. Mar 2022

    Permit 202203049264 $$$ $100,000

    Commerical t.i. t24 electrical compliance. new lighting, led. new run off existing panel. ref e/p ew202203011732 & t.i permit application 202110281420.

20. Apr 2022

    Issued Permit 202204041462 $$$ $40,000

    Verizon wireless: remove 3 existing antennas. install 3 new antennas. install 3 new integrated units.

21. Apr 2022

    Permit 202204142201 $$$ $55,000

    Tenant improvement - install new vrf indoor units. ref permit application 202110281420.

22. Jul 2022

    Permit 202207128241 $$$ $5,000

    Revision to permit application 202202027152; add strobes, smokes & duct detectors on 1st, 3rd & 4th floors; ti ref permit application 202110281420.

DBI holds 37 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 37. 2 of them are nominal $1 street-space or sidewalk permits. 3 expired or cancelled permits are not shown.