2001 Union Street

1. 1970

   Built.

2. Nov 1982

   Permit 8209241 $$$ $3,000

   Building use: office.

3. Mar 2001

   Permit 200103204682 $$$ $65,000

   One-stop: install antennas on side of existing penthouse. radio equipment in room in basement.

4. Nov 2003

   Permit 200311240970 $$$ $70,000

   Installation & operation of (5) equipment cabinets for sprint pcs wireless network. the equipment.

5. Aug 2004

   Permit 200408030492 $$$ $100,000

   Oti-1, 5th floor, el.

6. Aug 2004

   Permit 200408101174 $$$ $350,000

   Interior tenant improvement including partions, electrical, plumbing, hvac, structural & finishes.

7. May 2005

   Permit 200505313740 $$$ $50,160

   Oti-1, 4th floor, el, me.

8. Oct 2005

   Permit 200510125390 $$$ $270,000

   Accessible entry ramp & door at union st, remodel 2nd fl toilet for accessible, wall & floor.

9. Apr 2006

   Permit 200604259823 $$$ $380,000

   New restrooms, new lobby ceilings, new finishes. no structural work. floors, 3, 4, 5, 6.

10. Oct 2006

    Permit 200610034053 $$$ $80,000

    Tenant improvement for a dental office in a building of 6 stories. ref to appl#200604259823.

11. Mar 2007

    Permit 200703216830 $$$ $113,000

    Oti-1, union street plaza, 5th floor, el, me. complaint 200447696.

12. Jul 2008

    Permit 200807217126 $$$ $16,000

    Remove existing partition wall and install new partition wall for dental office, new acoustical ceiling, light fixture and mechanical ventilation. previous accessibility compliance under app# 200604259823, t.i. at 5th floor.

13. Jun 2013

    Disapproved Permit 201306068857 $$$ $50,000

    Modification to an existing unmanned telecommunications facility consist of removing & replacing 9 existing at & t antennas with 9 new antennas, add a new 6601-duw rbs unit in an existing 19" equipment rack & add 6 new rrus-11s and 3 new dc-2 surge suppressors at the antennas.

14. Dec 2013

    Permit 201312204689 $$$ $5,700

    6th floor: tenant improvement in work in suite 625.

15. Aug 2014

    Permit 201408284917 $$$ $140,000

    #200- add private office to existing open space, expand current suite to adjacent hallway, reconfigure copier area, replace existing break room cabinets & sink for full accessibility compliance.

16. Mar 2016

    Issued Permit 201603152012 $$$ $170,000

    2nd floor: interior t.i. work for office suite in previously occupied office.

17. Jun 2016

    Issued Permit 201606039022 $$$ $95,000

    3rd floor: suite 365 - interior ti for existing dental office.

18. May 2017

    Permit 201705045681 $$$ $48,000

    Att modification remove & replace 9 existing antennas with 9 new antennas; install 9 new rru's; relocate 3 existing rru's; remove unusual equipment. paint antennas to match.

19. Apr 2018

    Permit 201804035432 $$$ $165,500

    Reroofing.

20. May 2025

    Permit 202505287401 $$$ $30,000

    Ste 255: interior renovation of ste# 255 into a jewelry showroom.

21. Jul 2025

    Filed Permit 202507221366 $$$ $135,000

    T-mobile remove 1 e) antenna, install 6 n) radomes within 6 n) radomes, reomve 3 e) cabinets, install 2 n) cabinets, install n) batteries, install n) conduit & brakers.

22. Nov 2025

    Issued Permit 202511210155 $$$ $400,000

    Suite 520, 5th floor. interior tenant improvement work for office suite in previously occupied office. ref#: 200604259823.

DBI holds 99 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 99. 8 of them are nominal $1 street-space or sidewalk permits. 4 expired or cancelled permits are not shown.