1050 Walnut St
Boulder, CO 80302
200 permits on record here. The newest, Nov 18, 2025: Replace 203 Existing pendant heads in ceilings and install new upright sprinkler heads to obtain sprinkler. Boulder publishes permits without map coordinates, so this address has no map and no quarter-mile list.
Here200 permits · 1050 Walnut St
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Replace 203 Existing pendant heads in ceilings and install new upright sprinkler heads to obtain sprinkler…Fire systemsNov 18, 2025$13,613
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The project entails the removal of the interior finish of three business suites on the third and fourth…Alteration or repairOct 8, 2025$260,460
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Aug 22, 2025$9,565
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2514120 White box suites 102, 104Fire systemsAug 1, 2025$7,700
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The project entails upgrades/reconfiguration to an existing first floor lobbyAlteration or repairJul 30, 2025$209,410
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The project entails the removal of the interior finish of five business suites on the first and second floors…Alteration or repairJul 9, 2025$150,000
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Oct 17, 2024$607,354
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*Demo existing non bearing walls/build back 130' of new walls/add clean room as noted on plansPlumbingAug 11, 2020$3,500
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*Demo existing non bearing walls/build back 130' of new walls/add clean room as noted on plansMechanical (HVAC)Aug 11, 2020$20,279
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*Demo existing non bearing walls/build back 130' of new walls/add clean room as noted on plansElectricalAug 11, 2020$27,000
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*Demo existing non bearing walls/build back 130' of new walls/add clean room as noted on plans × 2 permitsAlteration or repairJul 24, 2020 to Aug 11, 2020$110,356
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Jan 3, 2020$10,000
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Suite 402: Interior, nonstructural tenant finish for YassoMechanical (HVAC)Jan 3, 2020$85,000
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Interior, nonstructural tenant finish for YassoAlteration or repairJan 3, 2020not listed
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Jan 3, 2020$70,000
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Suite 402: Interior, nonstructural tenant finish for YassoAlteration or repairJan 3, 2020$651,496
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Sep 30, 2019$650
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Additions/modifications to existing fire alarm system to accommodate tenant finish on the 5th floor See…Fire systemsSep 3, 2019$3,000
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Void for 180 days of Inactivity Tenant interior remodel for an existing office suite on the fifth floor to…Mechanical (HVAC)Aug 16, 2019$8,000
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Aug 16, 2019$15,000
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Void for 180 days of Inactivity Tenant interior remodel for an existing office suite on the fifth floor to…Alteration or repairAug 16, 2019$27,837
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Relocate 3 pendentsFire systemsAug 13, 2019$2,480
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Void for 180 days of Inactivity Floodplain development permit for a tenant interior remodel…Alteration or repairJul 22, 2019not listed
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Jun 19, 2019$500
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Relocate sprinklers to accommodate TIFire systemsApr 26, 2019$2,710
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Void for 180 days of Inactivity Suite 400: Interior tenant remodel of a portion of an existing office suite…Mechanical (HVAC)Apr 11, 2019$10,000
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Floodplain development permit for Suite 400Alteration or repairApr 11, 2019$43,060
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Apr 11, 2019$6,000
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Void for 180 days of Inactivity Suite 400: Interior tenant remodel of a portion of an existing office suite…Alteration or repairApr 11, 2019$43,060
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Apr 1, 2019$53,312
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Mar 29, 2019not listed
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Feb 27, 2019$1,500
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TI for light hazard office spaceFire systemsFeb 20, 2019$4,250
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Feb 15, 2019$8,900
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Feb 15, 2019$30,000
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Feb 15, 2019$64,500
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Void for 180 days of Inactivity Tenant remodel of existing office space to add new kitchen and build demising…Alteration or repairFeb 15, 2019$122,000
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Flood permit associated with NRE2019-00004: Tenant remodel of existing office space to add new kitchen and…Alteration or repairFeb 14, 2019$122,000
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Feb 12, 2019$53,312
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33 relocates and 1 add for TIFire systemsJan 4, 2019$7,270
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Relocate 2 Horn/Strobes as shown on drawingsFire systemsJan 2, 2019$900
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Dec 27, 2018$3,000
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Void for 180 days of Inactivity Tenant interior remodel of an existing office suite to reconfigure interior…Mechanical (HVAC)Dec 27, 2018$16,000
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Dec 27, 2018$259,747
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Tenant interior remodel of an existing office suite to reconfigure interior partition wallsElectricalDec 27, 2018$45,000
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Void for 180 days of Inactivity Suite 401: Tenant interior remodel of an existing office suite to reconfigure…Alteration or repairDec 27, 2018$273,253
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Dec 21, 2018$5,000
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Void for 180 days of Inactivity Tenant interior remodel of a portion of an office suite for a…PlumbingNov 29, 2018$8,500
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Tenant interior remodel of a portion of an office suite for a telescope/spectroscopy room and an engineering…Mechanical (HVAC)Nov 29, 2018$30,000
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Floodplain Development permit for a tenant interior remodel of a portion of an office suite for a…Alteration or repairNov 29, 2018$150,000
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Nov 29, 2018$25,000
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Void for 180 days of Inactivity Tenant interior remodel of a portion of an office suite for a…Alteration or repairNov 29, 2018$150,000
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Nov 26, 2018$2,190
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Suite 402: Demo non-load bearing wallsMechanical (HVAC)Oct 25, 2018$500
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Suite 402: Demo non-load bearing wallsElectricalOct 25, 2018$3,000
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Suite 402: Demo non-load bearing wallsAlteration or repairOct 25, 2018$26,097
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Relocate 1, add 3 Sprinkler headsFire systemsOct 4, 2018$2,100
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Floodplain Development Permit (accessory/remodel) for a small interior remodel of a second floor office space…Alteration or repairSep 7, 2018not listed
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Small interior remodel of a second floor office space to build approximately 22' of partition wall to create…Alteration or repairSep 7, 2018$5,871
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Aug 14, 2018$9,251
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UNIT 102-Demolition of 10' of demising wall and construction of 28 linear feet of new demising wallAlteration or repairAug 14, 2018$9,743
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May 10, 2018$4,600
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Suite 216 - Tenant remodel of 650 SF for SWRIMechanical (HVAC)May 10, 2018$1,000
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May 10, 2018$45,000
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May 10, 2018$14,000
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Suite 216 - Tenant remodel of 650 SF for SWRIAlteration or repairMay 10, 2018$53,690
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Feb 28, 2018$400
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Fire Sprinkler TI - Management OfficeFire systemsJan 9, 2018$4,350
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Aug 23, 2017$300
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Demolition of existing architectural columnsAlteration or repairAug 23, 2017$6,410
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Jul 26, 2016$8,705
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Fs - sowl - install 7 new spks, relocate 20 pksFire systemsMay 10, 2016$4,603
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May 6, 2016$2,400
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*Voided for inactivity due to no inspections performed within 180 days of issuance.*Electrical permit to… × 2 permitsElectricalApr 12, 2016$4,000
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Fs - sowl - add 2 upright, replace 9 pendentFire systemsJan 27, 2016$3,200
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Dec 2, 2015$3,500
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Dec 2, 2015$5,200
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Dec 2, 2015$38,700
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Tenant remodel of Suite 200 for expasion of offices for Foundry GroupAlteration or repairDec 2, 2015$24,044
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Fs - es - tf for office area suite 332Fire systemsSep 22, 2015$2,650
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Fa - es - add 4 h/s add 1 strobeFire systemsSep 8, 2015$2,400
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Installation of two replacement boiler pumps in rooftop penthouse of commercial buildingMechanical (HVAC)May 13, 2015$45,000
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Feb 10, 2015$800
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Interior, non-strucutral remodel to existing professional office spaceAlteration or repairFeb 10, 2015$4,800
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Oct 1, 2014$199,100
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Install sound screens for roof top mechanical at three locationsAlteration or repairAug 20, 2014$75,000
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Aug 11, 2014not listed
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Fs - tf for office spaceFire systemsMay 16, 2014$2,530
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Installation of a 15 ton process chiller in the garage area (below grade) of the mixed-use structureMechanical (HVAC)Nov 7, 2013$80,554
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Suite 320: Interior remodel of 963 square feet for "Land Title Company" professional officesPlumbingSep 30, 2013$4,300
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Suite 320: Interior remodel of 963 square feet for "Land Title Company" professional officesMechanical (HVAC)Sep 30, 2013$3,200
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Suite 320: Interior remodel of 963 square feet for "Land Title Company" professional offices × 2 permitsAlteration or repairSep 30, 2013$142,535
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Suite 320: Interior remodel of 963 square feet for "Land Title Company" professional officesElectricalSep 30, 2013$8,900
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Interior non-structural demolition in suite 320 associated with remodel permit PMT2013-04411DemolitionSep 27, 2013not listed
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Fa - add and relocate notificationFire systemsSep 25, 2013$1,000
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Sep 24, 2013$3,105
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Jul 26, 2013$200
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Remodel of 520 sf on portions of the 4th floor & 5th floorMechanical (HVAC)Jul 26, 2013$1,800
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Jul 26, 2013$24,100
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Remodel of 520 sf on portions of the 4th floor & 5th floorAlteration or repairJul 26, 2013$39,707
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Fa - tfFire systemsMay 1, 2013$150
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Fs - tfFire systemsApr 24, 2013$700
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Apr 19, 2013$7,360
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UNIT 340 - Interior, non-structural remodel of existing office spaceAlteration or repairApr 19, 2013$24,282
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Apr 19, 2013$200
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UNIT 219 - Interior, non-structural remodel of 638SF of office spaceMechanical (HVAC)Apr 19, 2013$2,100
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Apr 19, 2013$38,200
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UNIT 219 - Interior, non-structural remodel of 638SF of office spaceAlteration or repairApr 19, 2013$48,718
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Interior remodel of entry lobbyMechanical (HVAC)May 30, 2012$1,200
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Interior remodel of entry lobbyElectricalMay 30, 2012$10,000
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Interior remodel of entry lobbyAlteration or repairMay 30, 2012$65,363
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May 29, 2012$1,700
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May 29, 2012$1,700
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Apr 27, 2012$20,000
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Apr 27, 2012$4,800
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Apr 27, 2012$225,000
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Tenant remodel of 1st floor core including new corridor demising wallsAlteration or repairApr 27, 2012$224,902
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Feb 22, 2012$6,500
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Feb 7, 2012not listed
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Nov 15, 2011$8,500
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Tennant Finish Sprinkler For Siemanns SuiteFire systemsNov 8, 2011$900
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Oct 18, 2011$600
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Oct 14, 2011$1,800
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Tenant remodel in #400 for Southwest Research Institute lab space including removal of non-bearing walls × 2 permitsElectricalOct 14, 2011$11,250
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Tenant remodel in #400 for Southwest Research Institute lab space including removal of non-bearing wallsAlteration or repairOct 14, 2011$70,148
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Scope of Work Letter For Suite 400 SWRI Conference Rm & Lab Relocation of 9 Heads Due to LightingFire systemsOct 6, 2011$1,425
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Sep 13, 2011$300
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Suite 400 -- Removal of the upper four feet on two walls of an existing TSOC roomAlteration or repairSep 13, 2011$9,000
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Buillding permit for fourth floor only to install non-bearing wall adjacent to existng wall for sound… × 2 permitsAlteration or repairJul 26, 2011$12,587
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Jul 26, 2011$2,280
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Tenant remodel on 3rd floor (#300) to install non-bearing wall and doorAlteration or repairJul 26, 2011$3,011
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New Backflow PreventorFire systemsMar 10, 2011$1,500
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Oct 18, 2010$143,200
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Tenant remodel of suite 401 for professional office useMechanical (HVAC)Oct 18, 2010$7,000
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Oct 18, 2010$12,200
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Tenant remodel of suite 401 for professional office useAlteration or repairOct 18, 2010$207,613
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Tennant Finish Fire Alarm For Suite 219Fire systemsOct 13, 2010$600
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Tennant Finish Fire Alarm Suite 401Fire systemsOct 13, 2010$1,100
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Oct 8, 2010$1,800
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Sep 23, 2010not listed
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Mechanical Permit - For installation of natural gas line to serve roof-top back-up generator on Exeter…Mechanical (HVAC)Aug 23, 2010$2,190
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Mechanical Permit - For three (3) new a/c units for server room on 5th Floor of Exeter BuildingMechanical (HVAC)Jul 21, 2010$46,415
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Mechanical Permit - For three (3) new a/c units for server room on 5th Floor of Exeter BuildingElectricalJul 21, 2010$4,750
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Electrical work related to installation of a rooftop generator -- remove twin 60 amps fused switchElectricalJun 30, 2010$20,000
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Mechanical Permit - For installation of new back up generator on roof-top of Exeter BuildingMechanical (HVAC)Jun 21, 2010$27,000
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Tennant Finish Fire AlarmFire systemsJun 17, 2010$1,250
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Cut an opening in west wall of the elevator machine room and install a door and platform for accessElevatorMay 10, 2010$7,800
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Tennant Finish Fire Alarm For 4th and 5th FloorFire systemsMar 24, 2010$1,800
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Mar 1, 2010$350
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Jul 29, 2009$300
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Tennant Finish Fire Alarm AOLFire systemsJun 22, 2009$800
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Tennant Finish SprinklerFire systemsJun 15, 2009$2,100
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May 18, 2009$2,500
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Tenant remodel of 2,985 sf for office space for AOL.Suite 101 To include related electricalMechanical (HVAC)May 18, 2009$15,000
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Tenant remodel of 2,985 sf for office space for AOL.Suite 101 To include related electrical × 2 permitsElectricalMay 18, 2009$28,000
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Tenant remodel of 2,985 sf for office space for AOL.Suite 101 To include related electricalAlteration or repairMay 18, 2009$150,000
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Mar 11, 2009$1,200
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Tenant remodel in Suite 510 of 5211 sf to include removal of existing interior partition wallsPlumbingFeb 19, 2009$300
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Tenant remodel in Suite 510 of 5211 sf to include removal of existing interior partition wallsMechanical (HVAC)Feb 19, 2009$7,500
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Tenant remodel in Suite 510 of 5211 sf to include removal of existing interior partition wallsDemolitionFeb 19, 2009not listed
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Tenant remodel in Suite 510 of 5211 sf to include removal of existing interior partition wallsElectricalFeb 19, 2009$28,000
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Tenant remodel in Suite 510 of 5211 sf to include removal of existing interior partition wallsAlteration or repairFeb 19, 2009$149,000
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Scope of Work letter Suite 510 SWRI ExpansionFire systemsFeb 10, 2009$1,300
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Feb 2, 2009not listed
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Tennant Finish Fire Alarm Suite 340Fire systemsDec 10, 2008$700
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Scope of Work Letter Suite 340Fire systemsNov 25, 2008$1,100
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Tenant remodel for Suite 340Mechanical (HVAC)Nov 10, 2008$6,200
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Nov 10, 2008$105,000
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Tenant remodel for Suite 340ElectricalNov 10, 2008$19,000
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New Hood System For The Orchid PavillionFire systemsSep 23, 2008$3,705
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Remove door and frame Rap with rock and open wallAlteration or repairSep 8, 2008$1,200
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Jun 16, 2008$14,398
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Jun 16, 2008$300
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Tennant Finish Fire Alarm Suite 216Fire systemsJun 11, 2008$800
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Tennant Finish Suite 216Fire systemsJun 6, 2008$2,500
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Tenant remodel in Suite #216PlumbingJun 3, 2008$4,800
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Tenant remodel in Suite #216Mechanical (HVAC)Jun 3, 2008$13,200
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Tenant remodel in Suite #216ElectricalJun 3, 2008$18,000
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Tenant remodel in Suite #216Alteration or repairJun 3, 2008$84,000
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May 19, 2008not listed
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Jan 18, 2008not listed
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Oct 11, 2007$400
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Sep 27, 2007$800
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Sep 19, 2007$2,000
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Sep 14, 2007not listed
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Aug 31, 2007$1,200
Boulder Planning and Development Services updated its data Oct 6, 2026. We checked it Oct 6, 09:37 UTC. See the city's official records.
At this address: every permit the city holds. Nearby: permits from the last two years, from our copy of the city's data.
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