401–405 Folsom Street

1. Oct 2000

   Alter existing wet fire sprinkler system at (basement) new ventilation rms (2ea), install n/direct i.

   Expired Permit 200010042316 $$$ $198,000
2. Oct 2005

   Reroofing.

   Expired Permit 200510044701 $$$ $3,000
3. Nov 2007

   An intelligent nfs 640-2 control apnel with (1) graphic annunciator panel. the system will include (31) smokes, (9) beam detectors, (2) pull stations, (18) dual monitor modules, (6) control modules, (1) monitor module for existing deluge & wet sprinkler systems, (2) weatherproof horn/strobes.

   Issued Permit 200711158214 $$$ $122,542
4. May 2011

   Pg&e is installing two fire resistant partition walls between the existing transformers on the 1st floor.

   Expired Permit 201105045327 $$$ $60,000
5. Apr 2012

   Demolition existing deluge system in bank 3 to re-install to accommodate new transformer on the 1st floor. modify bank 13 and replace after blast wall has been installed. (total 36 spray nozzles) install detection system for bank 3.

   Complete Permit 201204198656 $$$ $61,868
6. Feb 2014

   Demolition existing tb2 & tb12 deluge system & existing valve, demolition existing backflow prev & strainer. install new main shutoff valve in stairwell by entry. install new piping in bank tb2 & tb12 with wet pilot system, install new backflow & striners, install new tb2 & 12 deluge valve. install 4 new duct detectors, 5 new.

   Complete Permit 201402067939 $$$ $209,656
7. Feb 2014

   Construction partition wall between transformer 2 & 12 to protect them, the wall will be 20' height, 17 long & 1' wide - pre cast refinforced refactory concrete panels & columns wiht the top being supported to the wall with steel bracings.

   Complete Permit 201402269372 $$$ $100,000
8. Aug 2014

   Cosco to design & expand fire alarm system to cover the scope work. remove existing fan control, install new fan control in lobby. interface fan control with fire alarm system. remove existing graphic annuciator & install new touch graphic annunciator in lobby. upgrade elevator recall system.

   Complete Permit 201408214433 $$$ $550,000
9. Jul 2015

   Relocate e valves in basement. install f500 system consisting of 900 gal bladder tank, concentrate line, modify piping at sw corner of building for new oil containment area.

   Complete Permit 201507222112 $$$ $180,000
10. Sep 2015

    Expand fire alarm system to monitor the new sprinkler deluge system.

    Complete Permit 201509156968 $$$ $25,000
11. Feb 2017

    Temporarily remove existing deluge piping at tb2 & 12 for transformer maintenance. restore system after maintenance is complete. remove the existing fire supression system piping in ocb 202.

    Complete Permit 201702240072 $$$ $68,328
12. Feb 2017

    Demolition of existing deluge detecting system protecting cb202.

    Complete Permit 201702240076 $$$ $14,508
13. Feb 2017

    Demolition of the existing deluge detection system protecting hz2.

    Complete Permit 201702240077 $$$ $14,508
14. Feb 2017

    Remove the existing fire supression system piping in hz-2.

    Complete Permit 201702240075 $$$ $13,428
15. May 2017

    1/f #tb1 & 11- remove existing deluge system piping for transformer maintenance, restore system after maintenance is complete, replace existing heat detections system with pneumatic detection (pilot line).

    Complete Permit 201705156550 $$$ $139,307
16. May 2017

    1/f #tb1 & 11- demolition of existing deluge detection system protecting tb1 & 11.

    Complete Permit 201705156552 $$$ $9,300
17. May 2018

    Replace existing transformer deluge system piping and install new piping to match new transformer.

    Issued Permit 201805229797 $$$ $129,430
18. Apr 2019

    Demolish existing deluge protection for system protecting tb 5 & 15. design & install new deluge system protecting tb 5 & 15 from existing single feed supplied with f-500 encapsulating agent. system designed at 0.30 gpm/sq ft over transformer surface & 0.15 gpm/sq ft over floor area.

    Complete Permit 201904258880 $$$ $65,780
19. Jun 2019

    Install new conduit & 4 new h/d (replacing exist) h/d to exist building.

    Complete Permit 201906072794 $$$ $50,930
20. Sep 2019

    Provide design, permit, parts, labor associated to 4 new vfd fan units to interface with existing fa system & shut down upon alarm activation.

    Complete Permit 201909272875 $$$ $95,500
21. Jun 2021

    Demolition existing fire alarm devices within bank 1-11 space and re-install full heat detector add hvac duct smoke detection monitoring & hvac shutdown and audio/visual coverage once transformer is installed.

    Complete Permit 202106222980 $$$ $161,080
22. Jul 2021

    Adding f500 tank and tamper switch monitoring point into the existing fire alarm system.

    Complete Permit 202107124145 $$$ $20,000
23. Sep 2021

    Demolition existing deluge systems protecting t8 1/11 design and install new system protecting new transfomer 1 and existing transformer 11.

    Complete Permit 202109108115 $$$ $130,000
24. Apr 2026

    Reroofing no hot work. crrc #0628-0028.

    Complete Permit 202604159442 $$$ $407,463

DBI holds 41 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 41. 14 of them are nominal $1 street-space or sidewalk permits.