450 Sansome Street

1. 1967

   Built.

2. Oct 2001

   Permit 200110221343 $$$ $450,000

   Oti 1-(8th fl) lit, mechanical, l/s, sprinklers.

3. Aug 2005

   Permit 200508039280 $$$ $1,000,000

   Removal of existing stairs & ramps which currently take up most of the front plaze of the building, construct of a new single story extension of approx 1500 sq ft set at street level. the new space will be used to extend the existing retail spaces & lobby.

4. Feb 2012

   Permit 201202224598 $$$ $400,000

   4th fl: ti includes demolition of non structural partitons. building new non structural partitons. all new or revised hvac, electerical, plumbing, life safety will be design build under separate permit. building not sprinklered. restroom work in mens and womens restroom.

5. Dec 2012

   Permit 201212276901 $$$ $325,000

   T.i to a landlord provided empty shell space. includes non bearing partition walls, a portion of raised floor with structural foam with conc top. new floor finishes. new paint, new casework & furniture. electrical, mechanical & plumb, work on ste 120.

6. Nov 2013

   Permit 201311051181 $$$ $400,000

   13th floor tenant improvement for umqua bank offices including new partitions, new doors & finish upgrades. sprinkler and f/a under seperate permit.

7. Jun 2015

   Permit 201506249846 $$$ $458,000

   4/f -approx 8500 sq ft of remodel in existing space. compliance with maher ordinance no 155-13 not required.

8. Jul 2016

   Permit 201607293711 $$$ $375,000

   9th floor: remodel existing suite for ti - includes the demolition of existing walls, construction of new walls, lighting upgrades and upgrades to finishes maher na.

9. Jun 2018

   Permit 201806293325 $$$ $350,000

   Replace 3 cooling towers.

10. Jul 2019

    Permit 201907176094 $$$ $281,600

    7th floor. demolition existing partitions and associated power data, lighting, finishes and millwork. construc new partitions, pwoer data, lighting, finishes and millwork. suite is currently unoccupied.

11. Oct 2019

    Permit 201910114211 $$$ $198,500

    Rooftop: remove & replace 1 chiller & 2 pumps. maher n/a.

12. Jul 2021

    Permit 202107285242 $$$ $692,514

    16/f: demolition non-structural partitions, fixtures, millwork & finishes. construction of new non-structural partitions, fixtures, millwork & finishes. structural support (1) moveable partition.

13. May 2022

    Permit 202205204688 $$$ $389,000

    16/f: title 24 compliance - electrical for pa202107285242. maher n/a.

14. Oct 2025

    Issued Permit 202510238040 $$$ $1,043,000

    11/f suite 1100 - demolition of non structural elements, new interior partitions, doors, finishes, ceilings, lighting, mechanical electrical outlets and switches. restroom ada access. upgrade and new ada hi/lo drinking fountain. mep, ls and sprinkler system modification will be submitted as a separate permit.

15. Oct 2025

    Issued Permit 202510237987 $$$ $351,066

    Scope of work 7th fl (ste 750) shall consist of interior demolition of non structural elements including interior partitoins, doors, finishes, ceilings, lighting, mechanical and electrical outlets/switches. restroom ada upgrades, drinking fountains. mep life safety, sprinkler sys sep permit. no exterior work.

16. Nov 2025

    Issued Permit 202511058944 $$$ $834,400

    13th fl: ti. demolition of non structural elements, new interior partitions, doors, finishes, ceilings, lighting mechanical, electrical outlets & switches, restroom ada access, upgrades for new ada hi low drinking fountain. mep, ls and sprinkler system modification will be submitted as a separate permit.

17. Nov 2025

    Issued Permit 202511058945 $$$ $426,957

    14th fl: ti. demolition of non structural elements, new interior partitions, doors, finishes, ceilings, lighting mechanical, electrical outlets & switches, restroom ada access, upgrades for new ada hi low drinking fountain. mep, ls and sprinkler system modification will be submitted as a separate permit.

18. Nov 2025

    Reinstated Permit 202511058940 $$$ $347,351

    12th fl: ti. demolition of non structural elements, new interior partitions, doors, finishes, ceilings, lighting mechanical, electrical outlets & switches, restroom ada access, upgrades for new ada hi low drinking fountain. mep, ls and sprinkler system modification will be submitted as a separate permit.

19. Dec 2025

    Issued Permit 202512172060 $$$ $1,100,000

    Scope of work on the 7/f ste 700. shall consist of interior demolition of non structural elements including but not necessary limited to interior partions, doors, finishes, ceiling, lighting, mechanical and electrical outlets and switches. mep life, safety and sprinkler system on sep permit. no exterior work.

20. Mar 2026

    Issued Permit 202603197884 $$$ $306,377

    11th fl - deferred mechanical & electrical permit. permit ref permit application 202510238040 mechanical selective demolition & cap of med & low pressure duct work, ew dist for vav boxes, new hot water. reheat dis piping wshp & assoc ductwork & piping, air balance. electrical, new power & signal devices throughout. new 2022 t24 ltg & controls.

21. Mar 2026

    Issued Permit 202603197919 $$$ $275,277

    Deferred mechanical and electrical permit. ref permit application 202511058944. mechanical: select demolition and cap of mep to low pressured ducktwork.new dist for vav boxes, new hot water reheat distrubtion piping. air balance electrical and new power and signal devices througout. new 2022 t 24 compliant lighting and controls.

DBI holds 370 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 370. 3 of them are nominal $1 street-space or sidewalk permits. 5 expired or cancelled permits are not shown.