1743 Walnut St

Boulder, CO 80302

26 permits on record here. The newest, Apr 15, 2025: VOIDED DUE TO INACTIVITY OVER 180 DAYS Permit for the replacement of guard rail at the edge of a mezzanine. Boulder publishes permits without map coordinates, so this address has no map and no quarter-mile list.

1. VOIDED DUE TO INACTIVITY OVER 180 DAYS Permit for the replacement of guard rail at the edge of a mezzanine…

   Alteration or repair
   Apr 15, 2025$4,870
2. *Replace 3 wall packs and remove 2 others to comply with outdoor lighting ordinance

   Electrical
   Jan 6, 2021$1,625
3. Installation of a fire-lite ms-5ud3 facp to replace the existing kidde kas-200 facp emergency replacement of…

   Fire systems
   Mar 20, 2020$1,735
4. Add (7) new QR Pendent sprinkler heads to new kitchen and bathrooms

   Fire systems
   Dec 4, 2018$1,500
5. Interior tenant remodel of 438 sf to convert 300 sf of storage space into staff kitchen and convert existing…

   Plumbing
   Oct 4, 2018$7,000
6. Interior tenant remodel of 438 sf to convert 300 sf of storage space into staff kitchen and convert existing…

   Electrical
   Oct 4, 2018$4,000
7. Interior tenant remodel of 438 sf to convert 300 sf of storage space into staff kitchen and convert existing…

   Alteration or repair
   Oct 4, 2018$95,000
8. Interior, non-structural demolition of an existing office space in preparation for tenant remodel covered…

   Demolition
   Aug 24, 2018not listed
9. Installation of (2) replacement RTU?s on an existing commercial building

   Mechanical (HVAC)
   May 2, 2018$27,959
10. Unit 3: Tenant Remodel- Remove three existing non-load bearing walls

    Plumbing
    Apr 27, 2018$1,500
11. Tenant Remodel- Remove three existing non-load bearing walls

    Electrical
    Apr 26, 2018$2,000
12. Unit 3: Tenant Remodel- Remove three existing non-load bearing walls

    Alteration or repair
    Apr 26, 2018$31,620
13. Interior tenant remodel to an existing office suite to demise one suite into two (Suites 3 and 4) on the…

    Alteration or repair
    Apr 18, 2018$2,846
14. Interior, non-structural demolition of office partition walls

    Demolition
    Nov 8, 2017not listed
15. Fa - radio

    Fire systems
    Jun 9, 2014$500
16. Roof overlay of 53 squares Verisco Ballasted 60-mil EPDM at 1/4" per foot slope

    Roofing
    Jan 10, 2013$30,957
17. New Backflow Preventor For SPS Studios

    Fire systems
    Apr 7, 2010$5,345
18. Installation of back flow prevention

    Plumbing
    Sep 23, 2009$1,500
19. Replace roof top unit, 100,000 BTU

    Mechanical (HVAC)
    Jul 28, 2008$9,280
20. New flat roof mount PV system 8.4 KW

    Electrical
    Jun 3, 2008$53,069
21. Fire Sprinkler System - blue mountain arts

    Fire systems
    Mar 22, 2002$850
22. Install windows in block wall the original general permit number is 947750

    Alteration or repair
    Oct 14, 1994$2,600
23. Reloc stair

    Alteration or repair
    May 31, 1990$1,600
24. Mechanical roof top htg & a/c unit

    Mechanical (HVAC)
    Apr 15, 1988$8,364
25. Fire relocate sprinkler heads

    Fire systems
    Nov 13, 1987not listed
26. Tenant finish

    Alteration or repair
    Nov 2, 1987$9,000

• 1734 Walnut St newest permit Oct 2, 2025
• 1726 Walnut St newest permit Oct 17, 2025
• 1708 Walnut St newest permit Feb 21, 2025
• 1707 Walnut St 106 newest permit May 28, 2026
• 1802 Walnut St newest permit Oct 24, 2024
• 1818 Walnut St newest permit Sep 16, 2026
• 1819 Walnut St newest permit Dec 10, 2025
• 1655 Walnut St 301 newest permit Jan 15, 2026
• 1634 Walnut St C newest permit Sep 24, 2026
• 1860 Walnut St 3 newest permit Nov 6, 2024

Boulder Planning and Development Services updated its data Oct 6, 2026. We checked it Oct 6, 13:35 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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