2450 17th Street

1. 1911

   Built.

2. 1913

   Built as a school, recorded as occupied by Lux School of Industrial Training. Designed by William C. Hayes.

   Showplace Square / Northeast Mission Historic Resource Survey, adopted 2011
3. Mar 1982

   Permit 8201586 $$$ $45,000

   Additions alterations or repairs.

4. Jun 1982

   Permit 8205330 $$$ $225,000

   Building use: office.

5. Nov 1993

   Permit 9320230 $$$ $3,000

   Install diag bracing for the parapet.

6. Jul 1996

   Permit 9612681 $$$ $600,000

   Misc-remodel restrms, floors 1 7 2. new hc ramp. replace ceiling.

7. Aug 1996

   Permit 9616206 $$$ $15,000

   Interior demolition, non- bearing walls.

8. Feb 1999

   Permit 9903329 $$$ $85,000

   To install 9 panel antennas to the roof's parapet and buildo.

9. Oct 1999

   Permit 9922485 $$$ $110,000

   Removal of 2 skylights & reframe, reroofing.

10. Nov 2002

    Issued Permit 200211262363 $$$ $200,000

    Demolition exist walls, new walls for assembly room with associated corridors, lobby spaces 1st floor. rearrange.

11. Dec 2004

    Issued Permit 200412171707 $$$ $10,000

    Replace existing fire alarm system, partial 2nd fl & garage only.

12. Nov 2005

    Issued Permit 200511299121 $$$ $3,800

    Revise building permit 200412171707 to iinclude the top (3rd floor).

13. Jan 2009

    Permit 200901079736 $$$ $5,000

    At & t wireless propoe to modify existing telecom facility. modifications to facility will consist of 6 tma's to 3 of the existing antennas. installation of 6 coax cables that run from equipment cabinets to existing antennas. install 3 (rets) to back of existing antennas & reconfigure (adding internal radios) and existing.

14. Mar 2010

    Permit 201003198599 $$$ $65,000

    A modification to an existing unmanued telecommunication, facility consists add a new3206 cabinet in an existing equip. rm, remove & replace (6)existing antennas with (6)new antennas, add (6)new lines of coax (3)new dtma's & new ret's (remote electrical tilts)to antennas, ret powered by low voltage signal thru coax cable.

15. Sep 2010

    Permit 201009211310 $$$ $5,000

    Modification of existing at&t telecomunications site. relocate 3 antennas, no new equipment. original permit# 9903329 ( zoning/planning reference).

16. Sep 2010

    Permit 201009291903 $$$ $95,000

    Existing 3rd floor restroom improvements.

17. Nov 2010

    Permit 201011245631 $$$ $45,000

    Remove and replace 3 antennas. add 6 rrvs, 3 surge suppresses. add new splice box & 4 inner ducts. add new gps antenna.

18. May 2014

    Permit 201405125467 $$$ $10,000

    A modification to an existing unmanned at&t telecom. facility consisting of instlaling 3 new rru-12 units with 3 new a2 modules & removing & replacing 1 existing dul rbs unit with 1 new dus41 rbs unit in existing 19" rack in existing shelter.

19. Oct 2014

    Issued Permit 201410068180 $$$ $193,375

    Shoring & tieback involves the use of soldier beams, wood lagging & tiebacks to retain cuts up to 19 feet high, required for below grade parking for the 346 potrero ave development. (permit application 2013-11-20-2405s).

20. Jun 2016

    Permit 201606301297 $$$ $38,000

    Modification to an existing at&t facility including: removing and replacing 6 existing antennas like for like swap. removing 3 existing rrus and installing 6 new rrus near antennas. other misc upgrades to surge suppressors, fiber/power trunks, dus41 & xmu units, etc.

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. 3 of them are nominal $1 street-space or sidewalk permits. 6 expired or cancelled permits are not shown. The assessor dates the building to 1911; the city's 2011 survey of Showplace Square and the northeast Mission dates it to 1913.