4745 Walnut St

Boulder, CO 80301

38 permits on record here. The newest, Aug 11, 2025: Install RTU. Boulder publishes permits without map coordinates, so this address has no map and no quarter-mile list.

1. Install RTU

   Mechanical (HVAC)
   Aug 11, 2025$34,440
2. Replace RTU with like for like size

   Mechanical (HVAC)
   Jun 17, 2025$19,674
3. Adding a 120/240 volt panel to feed electrical testing equipment receptacles and cord drops

   Electrical
   Jan 2, 2025$30,000
4. Renovation of an existing 1st floor suite

   Alteration or repair
   May 28, 2024$236,531
5. Replace 2 existing (like for like) carrier 7.5 tons cooling

   Mechanical (HVAC)
   May 8, 2024$44,468
6. VOID-180 Days no activity Scope of work: Remove and dispose of the single ply membrane and built-up asphalt…

   Roofing
   Feb 29, 2024$244,222
7. VOID-180 Days no activity Replace current water heater with new 50 gallon water heater

   Mechanical (HVAC)
   Nov 22, 2023$1,434
8. 55"x24" non-illuminated channel logo

   Sign
   Jan 6, 2023$500
9. This project scope consists of the demolition of walls and fixtures within existing space

   Alteration or repair
   Sep 8, 2022$32,728
10. This project scope consists of the demolition of walls and fixtures within existing space

    Demolition
    Sep 7, 2022$32,350
11. Commercial tenant improvement within the existing structure located at 4745 walnut street

    Mechanical (HVAC)
    Mar 15, 2022$38,400
12. Commercial tenant improvement within the existing structure located at 4745 walnut street × 2 permits

    Electrical
    Mar 10 to 15, 2022$352,515
13. Commercial tenant improvement within the existing structure located at 4745 walnut street

    Alteration or repair
    Mar 15, 2022$449,457
14. Electrical scope associated with PMT2017-05270

    Electrical
    Nov 30, 2017$1,750
15. Installation of a new split system RTU

    Mechanical (HVAC)
    Nov 30, 2017$16,500
16. Tenant remodel for a commisary/warehouse space in Unit D. Eastpark 3 PUD allows warehouse uses

    Plumbing
    Apr 7, 2004$1,500
17. Tenant remodel for a commisary/warehouse space in Unit D. Eastpark 3 PUD allows warehouse uses

    Mechanical (HVAC)
    Apr 7, 2004$1,500
18. Tenant remodel for a commisary/warehouse space in Unit D. Eastpark 3 PUD allows warehouse uses

    Electrical
    Apr 7, 2004$3,000
19. Tenant remodel for a commisary/warehouse space in Unit D. Eastpark 3 PUD allows warehouse uses

    Alteration or repair
    Apr 7, 2004$15,000
20. Tenant remodel

    Electrical
    Sep 4, 2002$8,000
21. Tenant remodel

    Alteration or repair
    Sep 4, 2002$40,000
22. Interior tenant remodel × 2 permits

    Alteration or repair
    Oct 19, 2000$5,000
23. Interior tenant remodel

    Electrical
    Oct 19, 2000$300
24. Tenant finish remodel the original general permit number is 988824

    Alteration or repair
    Dec 24, 1998$30,000
25. Tenant finish - bathroom addition only the original general permit number is 9

    Alteration or repair
    Aug 31, 1998$20,000
26. Install shower & partition walls the original general permit number is 983710

    Alteration or repair
    Jun 9, 1998$2,000
27. Tenant finish the original general permit number is 982467

    Alteration or repair
    Apr 27, 1998$20,000
28. Separation walls for work areas the original general permit number is 938128

    Alteration or repair
    Oct 28, 1993$10,000
29. Ten fnsh. The original general permit number is r2109

    Alteration or repair
    Aug 7, 1990$6,000
30. Electrical HVAC WIRING

    Electrical
    Mar 28, 1990$400
31. Mechanical HVAC

    Mechanical (HVAC)
    Mar 26, 1990$3,750
32. Sign non elec

    Sign
    Apr 25, 1989not listed
33. Electrical WIRING SWITCH

    Electrical
    Mar 10, 1989$600
34. Tenant imprvmt × 2 permits

    Alteration or repair
    Jan 30, 1989 to Mar 7, 1989$43,000
35. Demolition demo non load brg walls

    Demolition
    Jan 17, 1989not listed

• 4730 Walnut St newest permit May 21, 2026
• 4760 Walnut St newest permit Nov 19, 2024
• 4765 Walnut St newest permit Sep 24, 2025
• 4775 Walnut St newest permit Mar 17, 2026
• 3750 Walnut St newest permit Dec 20, 2024
• 3720 Walnut St newest permit Sep 15, 2026
• 3333 Walnut St newest permit Nov 17, 2025
• 3300 Walnut St newest permit Jun 2, 2025
• 3250 Walnut St newest permit May 16, 2025
• 3201 Walnut St newest permit Nov 18, 2025

Boulder Planning and Development Services updated its data Oct 6, 2026. We checked it Oct 6, 19:00 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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