# Building permits at 6120 Longbow Dr, Boulder, CO

46 permits on record here. The newest, Oct 8, 2025: Replace existing Fike Cheetah Classic panel with new Fike XI Control panel for existing Clean Agent systems. Boulder publishes permits without map coordinates, so this address has no map and no quarter-mile list.

## At this address

| Date | Type | Work | Cost | Permit |
|---|---|---|---|---|
| Oct 8, 2025 | Fire systems | Replace existing Fike Cheetah Classic panel with new Fike XI Control panel for existing Clean Agent systems (FSX) | $28,000 | [FIR2025-00384](https://nearbypermits.com/boulder/permit/FIR2025-00384/) |
| Jul 31, 2024 | Mechanical (HVAC) | Mechanical permit associated with ELE2024-00368 fir the replacement of existing electric powered generator for gas powered generator. New concrete pad, gas feed, and electrical feeds to be provided. Existing generator and pad to be removed. | $33,600 | [MEC2024-00672](https://nearbypermits.com/boulder/permit/MEC2024-00672/) |
| Jul 31, 2024 | Electrical | Replacement of existing electric powered generator for gas powered generator. New concrete pad, gas feed, and electrical feeds to be provided. Existing generator and pad to be removed. | $600,027 | [ELE2024-00368](https://nearbypermits.com/boulder/permit/ELE2024-00368/) |
| Nov 2, 2023 | Fire systems | Alterations to the existing fire alarm system to accommodate a tenant finish. Relocate two horn strobes and remove one horn/strobe. See BLD-NRE2022-00161 for general building permit. See FIR2023-00289 for fire sprinkler permit. Northrop grumman purple room expansion (fati) | $800 | [FIR2023-00429](https://nearbypermits.com/boulder/permit/FIR2023-00429/) |
| Aug 17, 2023 | Fire systems | Additions / alterations to the existing wet pipe fire sprinkler system to accommodate a small tenant finish. Change nine existing fire sprinkler heads to uprights where the ceiling is being removed. Using VS2 flex drops in new offices. Add three upright fire sprinkler heads for missing coverage at n | $10,995 | [FIR2023-00289](https://nearbypermits.com/boulder/permit/FIR2023-00289/) |
| Nov 30, 2022 | Electrical | Expansion of room in existing space for tenant to include interior remodel of office areas. Scope to include demo and construction with associated electrical and mechanical work. No plumbing scope. No exterior work. | $500,000 | [BLD-NRE2022-00161](https://nearbypermits.com/boulder/permit/BLD-NRE2022-00161/) |
| Sep 7, 2022 | Mechanical (HVAC) | *Voided for inactivity - no inspections within 180 days* Upgrades to the mechanical and electrical systems in existing computer server rooms; The extent of the architectural work is to support these upgrades (repair any damaged finishes, and the modification of the roof top equipment screen to accep | $150,000 | [MEC2022-00253](https://nearbypermits.com/boulder/permit/MEC2022-00253/) |
| Sep 7, 2022 | Electrical | *Voided for inactivity - no inspections within 180 days* Upgrades to the mechanical and electrical systems in existing computer server rooms; The extent of the architectural work is to support these upgrades (repair any damaged finishes, and the modification of the roof top equipment screen to accep | $200,000 | [ELE2022-00200](https://nearbypermits.com/boulder/permit/ELE2022-00200/) |
| Sep 7, 2022 | Alteration or repair | *Voided for inactivity - no inspections within 180 days* Upgrades to the mechanical and electrical systems in existing computer server rooms; The extent of the architectural work is to support these upgrades (repair any damaged finishes, and the modification of the roof top equipment screen to accep | $400,000 | [BLD-NRE2022-00014](https://nearbypermits.com/boulder/permit/BLD-NRE2022-00014/) |
| Sep 16, 2021 | Sign | Install one set of internally illuminated letters on the north elevation reading NORTHROP GRUMMAN with Logo. Remove existing letter set on the west elevation. | $12,816 | [SGN2021-00063](https://nearbypermits.com/boulder/permit/SGN2021-00063/) |
| Oct 2, 2020 | Fire systems | Office Remodel; add 20 & relocate 6 sprinkler heads to accommodate tenant finish on main level. See BLD-NRE2020-00102 for general building permit. See FIR2020-00361 for fire alarm permit. Northrop grumman | $2,600 | [FIR2020-00368](https://nearbypermits.com/boulder/permit/FIR2020-00368/) |
| Sep 24, 2020 | Fire systems | Existing tenant remodel in existing sprinkled building. Existing addressable Notifier AFP-200 fire alarm system. Installation of horn/strobes on a new power supply. See BLD-NRE2020-00102 for general building permit. Northrop grumman | $10,500 | [FIR2020-00361](https://nearbypermits.com/boulder/permit/FIR2020-00361/) |
| Sep 2, 2020 | Mechanical (HVAC) | *Interior remodel of existing tenant space. Associated mechanical and electrical work. | $50,000 | [MEC2020-00880](https://nearbypermits.com/boulder/permit/MEC2020-00880/) |
| Sep 2, 2020 | Electrical | *Interior remodel of existing tenant space. Associated mechanical and electrical work. | $50,000 | [ELE2020-00799](https://nearbypermits.com/boulder/permit/ELE2020-00799/) |
| Sep 2, 2020 | Alteration or repair | *Interior remodel of existing tenant space. Associated mechanical and electrical work. | $175,000 | [BLD-NRE2020-00102](https://nearbypermits.com/boulder/permit/BLD-NRE2020-00102/) |
| Aug 17, 2020 | Fire systems | Due to construction, relocate one existing system sensor horn/strobe. See BLD-NRE2020-00060 for general building permit. Northrop grumman | $2,500 | [FIR2020-00306](https://nearbypermits.com/boulder/permit/FIR2020-00306/) |
| Jul 28, 2020 | Fire systems | 1st & 2nd Floors, add 3 & relocate 3 | $1,200 | [FIR2020-00288](https://nearbypermits.com/boulder/permit/FIR2020-00288/) |
| Jul 7, 2020 | Mechanical (HVAC) | *Tenant remodel of office space. | $45,000 | [MEC2020-00504](https://nearbypermits.com/boulder/permit/MEC2020-00504/) |
| Jul 7, 2020 | Electrical | *Tenant remodel of office space. | $25,000 | [ELE2020-00457](https://nearbypermits.com/boulder/permit/ELE2020-00457/) |
| Jul 7, 2020 | Alteration or repair | *5000 SF Tenant remodel of office space. | $337,500 | [BLD-NRE2020-00060](https://nearbypermits.com/boulder/permit/BLD-NRE2020-00060/) |
| May 27, 2020 | Mechanical (HVAC) | *Voided for inactivity - no inspections within 180 days* Update HVAC equipment associated with the air conditioning system. Electrical covered under ELE2020-00231. | $24,700 | [MEC2020-00290](https://nearbypermits.com/boulder/permit/MEC2020-00290/) |
| May 27, 2020 | Electrical | *Voided for inactivity - no inspections within 180 days* Electrical for the installation of the upgraded HVAC equipment, associated with the air conditioning system. Reference MEC2020-00290. | $13,300 | [ELE2020-00231](https://nearbypermits.com/boulder/permit/ELE2020-00231/) |
| Nov 4, 2019 | Mechanical (HVAC) | Interior tenant remodel for Northrop Grumman offices. Scope includes removal and replacement of finishes for installation of sound abatement material, addition of rooftop AC and condensing unit, structural modifications for HVAC and screening, and power upgrades. No lighting or plumbing scope includ | $125,000 | [MEC2019-01303](https://nearbypermits.com/boulder/permit/MEC2019-01303/) |
| Nov 4, 2019 | Electrical | Interior tenant remodel for Northrop Grumman offices. Scope includes removal and replacement of finishes for installation of sound abatement material, addition of rooftop AC and condensing unit, structural modifications for HVAC and screening, and power upgrades. No lighting or plumbing scope includ | $165,000 | [ELE2019-01141](https://nearbypermits.com/boulder/permit/ELE2019-01141/) |
| Nov 4, 2019 | Alteration or repair | Interior tenant remodel for Northrop Grumman offices. Scope includes removal and replacement of finishes for installation of sound abatement material, addition of rooftop AC and condensing unit, structural modifications for HVAC and screening, and power upgrades. No lighting or plumbing scope includ | $340,000 | [BLD-NRE2019-00182](https://nearbypermits.com/boulder/permit/BLD-NRE2019-00182/) |
| Nov 18, 2014 | Fire systems | Fs - sowl - "add/relocate 9 sprinklers for the new tenant office space." | $680 | [PMT2014-05193-FIR](https://nearbypermits.com/boulder/permit/PMT2014-05193-FIR/) |
| Sep 18, 2012 | Fire systems | Fire Alarm - NG High Bay | $2,200 | [PMT2012-04399-FIR](https://nearbypermits.com/boulder/permit/PMT2012-04399-FIR/) |
| Sep 18, 2012 | Fire systems | Fire Suppression - Clean Agent (Northrrop Grumannan) | $4,200 | [PMT2012-04273-FIR](https://nearbypermits.com/boulder/permit/PMT2012-04273-FIR/) |
| Aug 29, 2012 | Fire systems | Fire Sprinkler System - Northrop, High bay build out | $880 | [PMT2012-04203-FIR](https://nearbypermits.com/boulder/permit/PMT2012-04203-FIR/) |
| Aug 19, 2010 | Fire systems | Scope of Work Letter Northrup Grumman | $202 | [PMT2010-03483-FIR](https://nearbypermits.com/boulder/permit/PMT2010-03483-FIR/) |
| Jul 8, 2009 | Fire systems | Tennant Finish Sprinkler Northrup Grumman | $7,150 | [PMT2009-02494-FIR](https://nearbypermits.com/boulder/permit/PMT2009-02494-FIR/) |
| May 30, 2008 | Mechanical (HVAC) | Tenant remodel, 4174 SF. Construction of offices on the first floor, removal of offices on the second floor. Construction of conference room on second floor. No new plumbing or lighting fixtures. | $7,450 | [PMT2008-01846-MEC](https://nearbypermits.com/boulder/permit/PMT2008-01846-MEC/) |
| May 30, 2008 | Electrical | Tenant remodel, 4174 SF. Construction of offices on the first floor, removal of offices on the second floor. Construction of conference room on second floor. No new plumbing or lighting fixtures. | $4,700 | [PMT2008-01846-ELE](https://nearbypermits.com/boulder/permit/PMT2008-01846-ELE/) |
| May 30, 2008 | Alteration or repair | Tenant remodel, 4174 SF. Construction of offices on the first floor, removal of offices on the second floor. Construction of conference room on second floor. No new plumbing or lighting fixtures. | $54,000 | [PMT2008-01846](https://nearbypermits.com/boulder/permit/PMT2008-01846/) |
| May 19, 2008 | Fire systems | Scope of Work Letter Northrop Grumman | $500 | [PMT2008-01928-FIR](https://nearbypermits.com/boulder/permit/PMT2008-01928-FIR/) |
| Oct 24, 2006 | Fire systems | Fire Sprinkler System - Northrup Grumman | $100 | [PMT2006-04114-FIR](https://nearbypermits.com/boulder/permit/PMT2006-04114-FIR/) |
| Nov 29, 2004 | Mechanical (HVAC) | Tenant finish | $9,750 | [PMT2004-04556-MEC](https://nearbypermits.com/boulder/permit/PMT2004-04556-MEC/) |
| Nov 29, 2004 | Electrical | Tenant finish | $21,850 | [PMT2004-04556-ELE](https://nearbypermits.com/boulder/permit/PMT2004-04556-ELE/) |
| Nov 29, 2004 | Other | Tenant finish | $39,575 | [PMT2004-04556](https://nearbypermits.com/boulder/permit/PMT2004-04556/) |
| Sep 1, 2000 | Elevator | Installation of 2 oildraulic elevators. | $52,712 | [PMT2000-03611](https://nearbypermits.com/boulder/permit/PMT2000-03611/) |
| Aug 30, 2000 | Fire systems | Fire Alarm System - Core and Shell - Building #1 | $10,300 | [PMT2000-03587-FIR](https://nearbypermits.com/boulder/permit/PMT2000-03587-FIR/) |
| Jun 22, 2000 | Fire systems | Install a fire sprinkler system. | $36,005 | [PMT2000-02555-FIR](https://nearbypermits.com/boulder/permit/PMT2000-02555-FIR/) |
| May 26, 2000 | Plumbing | CORE AND SHELL - new industrial building - no user/tenant specified. | $47,770 | [PMT2000-00329-PLB](https://nearbypermits.com/boulder/permit/PMT2000-00329-PLB/) |
| May 26, 2000 | Mechanical (HVAC) | CORE AND SHELL - new industrial building - no user/tenant specified. | $143,325 | [PMT2000-00329-MEC](https://nearbypermits.com/boulder/permit/PMT2000-00329-MEC/) |
| May 26, 2000 | Electrical | CORE AND SHELL - new industrial building - no user/tenant specified. | $11,470 | [PMT2000-00329-ELE](https://nearbypermits.com/boulder/permit/PMT2000-00329-ELE/) |
| May 26, 2000 | New building | CORE AND SHELL - new industrial building - no user/tenant specified. | $1,616,000 | [PMT2000-00329](https://nearbypermits.com/boulder/permit/PMT2000-00329/) |

## More on this street

Other addresses on Longbow Dr with permits, nearest house number first:

- [6170 Longbow Dr](https://nearbypermits.com/boulder/address/6170-longbow-dr/): newest permit Sep 25, 2026
- [6175 Longbow Dr](https://nearbypermits.com/boulder/address/6175-longbow-dr/): newest permit Apr 23, 2026
- [6035 Longbow Dr](https://nearbypermits.com/boulder/address/6035-longbow-dr/): newest permit Oct 7, 2024
- [5920 Longbow Dr](https://nearbypermits.com/boulder/address/5920-longbow-dr/): newest permit Feb 3, 2026

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-07 02:04 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

All 46 permits at this address: https://nearbypermits.com/boulder/address/6120-longbow-dr/
