3141 9th St

Boulder, CO 80304

17 permits on record here. The newest, Aug 28: Installing 2 new heat pump mini split systems. Boulder publishes permits without map coordinates, so this address has no map and no quarter-mile list.

1. Installing 2 new heat pump mini split systems

   Mechanical (HVAC)
   Aug 28$29,527
2. *Total tear-off & reroof of SFD

   Roofing
   Jul 9, 2020$5,114
3. Additions to replace an existing office footprint to allow for a new crawl space and foundation for a new…

   Plumbing
   Feb 24, 2015$2,000
4. Additions to replace an existing office footprint to allow for a new crawl space and foundation for a new…

   Mechanical (HVAC)
   Feb 24, 2015$1,500
5. Additions to replace an existing office footprint to allow for a new crawl space and foundation for a new…

   Electrical
   Feb 24, 2015$5,000
6. Additions to replace an existing office footprint to allow for a new crawl space and foundation for a new…

   Addition
   Feb 24, 2015$150,000
7. Construction of new detached 2 car garage w/ studio and half bath above.(Applicant must sign and record…

   Plumbing
   Sep 18, 2001$2,000
8. Construction of new detached 2 car garage w/ studio and half bath above.(Applicant must sign and record…

   Mechanical (HVAC)
   Sep 18, 2001$1,000
9. Construction of new detached 2 car garage w/ studio and half bath above.(Applicant must sign and record…

   Electrical
   Sep 18, 2001$500
10. Construction of new detached 2 car garage w/ studio and half bath above.(Applicant must sign and record…

    New building
    Sep 18, 2001$19,000
11. Remodel garage into office

    Mechanical (HVAC)
    Dec 31, 1999$200
12. Remodel garage into office

    Electrical
    Dec 31, 1999$100
13. Remodel garage into office

    Alteration or repair
    Dec 31, 1999$1,500
14. Addition and remodel

    Plumbing
    Aug 11, 1999$6,000
15. Addition and remodel

    Mechanical (HVAC)
    Aug 11, 1999$9,000
16. Addition and remodel

    Electrical
    Aug 11, 1999$8,000
17. Addition and remodel

    Addition
    Aug 11, 1999$140,000

• 3136 9th St newest permit May 28, 2026
• 3153 9th St newest permit Apr 1, 2025
• 3156 9th St newest permit May 27, 2026
• 3119 9th St newest permit Dec 2, 2025
• 3188 9th St newest permit Nov 27, 2024
• 3055 9th St newest permit Mar 23, 2026
• 3227 9th St newest permit Jan 30, 2026
• 3228 9th St newest permit Sep 26, 2025
• 3048 9th St newest permit Apr 23, 2026
• 3236 9th St newest permit Sep 3, 2025

Boulder Planning and Development Services updated its data Oct 6, 2026. We checked it Oct 6, 13:25 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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