951 Howard Street
South Of Market · San Francisco, CA 94103
Permit history
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Aug 1990
Parapet.
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May 1992
Express p/c renovat of 8750 building to house switching office.
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Jul 1992
Renovate existing 9650 sq ft building to hse cellular tel equipm.
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Sep 1992
Fire sprinklers for entire structure.
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Sep 1992
Install halon & fire alarm systems.
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Aug 1994
Installation of 53 sq monopole with antennae.
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Mar 2001
Structural modification for independent truss system to support telco cable racking.
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Jul 2001
Modify exist preaction system per tneant improvemnets.
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May 2005
New interior partitions, ceiling work, mechanical., electrical., structural and finishes.replace & add new rooftop.
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May 2005
Install new fire alarm, fire suppression, pre-action and air sampling system.
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May 2005
Reroofing.
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Sep 2005
Electrical service & standby, emergency generator upgrade.add additional emergency light fixtures.(e.g. swapout exist fluorescewnt lighting with new self contained emergerncy light fixtures).
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Oct 2008
Addition of three cooling units in new unoccupied mechanical room.
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May 2009
Reroofing and roof strengthening. ada upgrades.
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Jun 2009
Replace with identical units hvac rtu for telecommunications equipment processes. remove ceiling in power room & leave open.
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Nov 2009
Revision to appl #2009.1125.2116. add sound barriers on roof screen & sound attenuation on (4) condensers. to address correction notice per d. sullivan & to address complaint #200926047 (bid).
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Mar 2010
At&t. a modification to an existing unmanned telecomunication facility conssisting of removing and replacing one antenna, and adding six new runs of coax, three new dtma's (dual tower mounted amplifiers) and new ret's ( remote electronic filter).
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Mar 2010
Replace existing 600a service with new 800a service, including switchgear, automatic transfer switches, generator tap box, and main house service panel. this project will include a housekeeping pad for the equipment and bollards for protection.
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Oct 2010
Replace existing 350 kw generator with new 500 kw gen'r. remove gen'r & enclosure. install new gen'r, stand alone, package. provide new electrical'l, monitoring, alarms, controls, fuel piping. at ext'r of building & provide assoc'd fueling plns for perm't & temp gen'r. (connect'n to fire alarm on separate permit).
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Dec 2010
Remove and replace 3 antennas, install 6 rrus. install 19" rack with a n 6601 equip cabinet, n surge suppressor, 1 new 3" conduit. install new gps antenna.
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May 2017
Provide and install an 8'-0" high steel security fence and gate. maher na.
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Oct 2018
Cell tower, att modification. remove and replace 6 antennas with 6 new antennas, install 6 new rru's, install other small equipment, no change to existing batteries.
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Oct 2020
Remove/replace (3) panel antennas on tower. remove/replace (3) rru units on tower. add (3) dc-9 units on tower. install new power/fiber trunk.
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Nov 2021
At&t modidy of existing unmanned cell site. antenna location: remove & replace (3) antennas - painted to match. equipment: remove (16) 155 ah batteries & (4) 160ah batteries from existing battery rack. install (1) n battery tray in existing dcpp-(12) 190 ah batt & (8) 190ah-(1) 6648 in existing rack; remove 2 existing tma'.
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May 2025
At&t - modification of an existing unmanned wireless facility consisting: removing 6 rrus, relocate 3 rrus, install 3 new rrus, add 3 new air antennas, 3 back to back brackets, ground (1) 48v rectifier, (3) 50a air 6419 antenna dc breaker, (3) 50a 4890 rru dc breakers.
DBI holds 46 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 46. 4 of them are nominal $1 street-space or sidewalk permits.
Not yet documented: the developer, the early tenants and the date of the last recorded sale. Submit an update