389 9th Avenue

1. 1920s

   Photographed, showing the Pacific Telephone & Telegraph Company building.

   San Francisco Subjects Photograph Collection (SFP 162), San Francisco Public Library
2. August 13, 1964

   Photographed, showing the Pacific Telephone & Telegraph Company building.

   San Francisco Subjects Photograph Collection (SFP 162), San Francisco Public Library
3. Sep 1992

   Remodel exist fire alarm sys-ttl upgrade. all 4 floors.

   Expired Permit 9216246 $$$ $110,000
4. May 1994

   Replace chiller on roof n/chiller will not be visable fr st.

   Expired Permit 9407935 $$$ $75,000
5. Jun 1994

   Reroofing.

   Expired Permit 9410413 $$$ $120,618
6. Nov 1994

   Remove 4th floor air handler & duct, install new metal platform.

   Complete Permit 9419024 $$$ $132,146
7. May 1995

   Remove & install double wall storage tank, piping.

   Complete Permit 9506614 $$$ $45,000
8. May 1995

   Enlargement of existingareaway (air intake shaft).

   Complete Permit 9507704 $$$ $30,000
9. Apr 1999

   Add air condit. to basement to servie telephone equipment.

   Complete Permit 9907733 $$$ $40,000
10. Feb 2000

    Reroofing.

    Expired Permit 20000203967 $$$ $87,827
11. Dec 2000

    Reroofing.

    Expired Permit 200012087503 $$$ $90,000
12. Oct 2007

    Replace generator exhaust stack.

    Complete Permit 200710266571 $$$ $89,357
13. Mar 2008

    Replace 2 rooftop packaged chillers with larger models with upgraded wiring and conduits and electrical upgrades.

    Complete Permit 200803106698 $$$ $360,000
14. Nov 2011

    Unmanned telecommunication facility at an existing at & t switch with (p) 5 radio cabinets, 2 parcell cabinets on a (p) 18 x 18 x 7" steel platform on & lower roof. apprtenant cable & cable tray. also adding 12 (p) antennas mounted to existing penthouse & screened with rfp panels.

    Issued Permit 201111088494 $$$ $125,000
15. Nov 2011

    Install new mechanical air handler to chiller and associated ductwork and piping.

    Complete Permit 201111148779 $$$ $500,000
16. May 2012

    2nd floor-install a new 1 hour rated room for wi-fi equipment.

    Complete Permit 201205180726 $$$ $20,000
17. Nov 2012

    1st floor-fire alarm t.i-1 facp upgrade kit, 3 monitor modules, 9 control relays, 21 smokes, 1 duct detector, 1 power supply, 1 sync module, 8 horn/strobes, 1 uesda, 1 vesda power supply.

    Complete Permit 201211144154 $$$ $20,000
18. Jul 2016

    Modification to e att facility consisting of r/r 6 e antennas, 3 e rruw with 3 n rrus 11 units and n a2 modules at antennas. install 3 n rrus 32 one unit new dc surge suppressors, 3 new rrus, 11 units, 2 dc12 surge suppressors, 2 new dus41, with n 6601 chassis and 2 n 2" innerducts maher not req.

    Complete Permit 201607081888 $$$ $49,000
19. Mar 2017

    T*mobile - modification to an unmanned wireless facility: install 3 8' antennas on new masts. swap 3 existing antennas for 3 new. install 3 new rrus mounted behind new antennas. replace existing coax roofing on roof sleepers with new cable tray maher na.

    Withdrawn Permit 201703091092 $$$ $20,000
20. Aug 2017

    At&t modification: remove & replace 3 existing antennas with 3 new antennas; install 3 new rrus' remove and replace 3 existing rrus with 3 new rrus; install other small equipment. n/a for maher.

    Complete Permit 201708074060 $$$ $32,000
21. Nov 2018

    At&t - r&r 6 antennas. install 6 new rrus, remove 9 rrus. install other small equip. install 1 new cabinet with batteries maher na.

    Complete Permit 201811135656 $$$ $39,000
22. Feb 2021

    Modification to an existing unmanned telecom facility. remove & replace 6 antennas, 2 rusted cabinet bases with new wf bm sleepers, 6 new radios, 6 new hybrid cables, 2 new cabinets. remove all existing radios, coax cables & tma's.

    Withdrawn Permit 202102195034 $$$ $25,000
23. Feb 2022

    Remove 1 existing at and t panel antenna per sector 3 storal, 1 e att rru, 11 b12 per sector 3 total.rmv e un used coax cables, rmv 2 e att rruw b4 per sector6, install 1 new att panel antenna per sec 3.install 1 new att rru 4449 b5/12 per sec 3.2 new att dc9 surg supp.2 new att dc pwr trunks @alpha/.

    Cancelled Permit 202202037282 $$$ $30,500
24. Dec 2022

    Att remove and replace 3 e antennas with 3 new antenns remove 6 e rrus install 3 n rrus, relocate 2 e antennas, install new power/fiber cables, 8 new batterires within e battery cabinets, energize 10 e rectifiers.

    Complete Permit 202212228941 $$$ $76,000
25. Mar 2025

    Install 2 new frp screens + 2 new radomes; remove 6 existing antennas + install 6 new antennas; remove 1 existing cadinet, install 2 new cabinets; install new batteries.

    Filed Permit 202503071827 $$$ $85,000
26. Aug 2026

    At&t: remove (6)existing antennas, (9)existing rrus; install (6)new antennas, (6) new rrus; no proposed change to existing batteries.

    Filed Permit 202608277279 $$$ $75,000

DBI holds 44 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 44. 4 of them are nominal $1 street-space or sidewalk permits.