4730 Walnut St

Boulder, CO 80301

56 permits on record here. The newest, May 21: Electric water heater Replacement: 2500 watts. Boulder publishes permits without map coordinates, so this address has no map and no quarter-mile list.

1. Electric water heater Replacement: 2500 watts

   Mechanical (HVAC)
   May 21$1,616
2. Permit for new site and parking lighting for Tierra Business Center

   Electrical
   Aug 10, 2017$9,466
3. Mechanical permit for the replacement of ten RTUs for commerical structure

   Mechanical (HVAC)
   Jul 17, 2015$87,000
4. Fs - sowl - relocate 9 and add 4 spks

   Fire systems
   Jun 29, 2015$2,900
5. Interior tenant remodel for office space

   Plumbing
   May 14, 2015$8,000
6. Interior tenant remodel for office space

   Mechanical (HVAC)
   May 14, 2015$28,000
7. Interior tenant remodel for office space

   Electrical
   May 14, 2015$35,000
8. Interior tenant remodel for office space

   Alteration or repair
   May 14, 2015$250,453
9. Fa - radio

   Fire systems
   Mar 11, 2014$500
10. Fs - tf

    Fire systems
    May 2, 2013$944
11. Suite 110 -- tenant remodel of 1,251 sf to create technical offices

    Plumbing
    Mar 28, 2013$9,995
12. Suite 110 -- tenant remodel of 1,251 sf to create technical offices

    Mechanical (HVAC)
    Mar 28, 2013$1,375
13. Suite 110 -- tenant remodel of 1,251 sf to create technical offices

    Electrical
    Mar 28, 2013$5,000
14. Suite 110 -- tenant remodel of 1,251 sf to create technical offices

    Alteration or repair
    Mar 28, 2013$90,710
15. Fs - tf - add and relocate

    Fire systems
    Nov 21, 2012$13,700
16. Tenant remodel in Suite 201 for Sketchup

    Plumbing
    Oct 11, 2012$29,600
17. Tenant remodel in Suite 201 for Sketchup

    Mechanical (HVAC)
    Oct 11, 2012$64,810
18. Tenant remodel in Suite 201 for Sketchup

    Electrical
    Oct 11, 2012$92,519
19. Tenant remodel in Suite 201 for Sketchup

    Alteration or repair
    Oct 11, 2012$393,690
20. Suite 110: Interior non-structural demolition of former technical office to remove non-bearing walls and…

    Demolition
    Jun 19, 2012not listed
21. Suite 200 -- Demolition of interior partition walls to return area to a "core & shell" configuration.

    Demolition
    Nov 17, 2011not listed
22. Scope of Work Letter For Slipstream Sports

    Fire systems
    Sep 14, 2009$600
23. Roofing Partial Tear off and Overlay

    Roofing
    May 4, 2009$51,218
24. Fire Sprinkler System- Crosstrees

    Fire systems
    Sep 13, 2006$200
25. Tenant remodel in Unit #123 for Vision Optik including addition of 2 office spaces

    Addition
    Sep 6, 2006not listed
26. Tenant remodel in Unit #123 for Vision Optik including addition of 2 office spaces

    Alteration or repair
    Sep 6, 2006$18,000
27. Tenant finish remodel 6800 sf adding interior walls

    Mechanical (HVAC)
    Nov 9, 2005$2,500
28. Tenant finish remodel 6800 sf adding interior walls

    Electrical
    Nov 9, 2005$2,500
29. Tenant finish remodel 6800 sf adding interior walls

    Alteration or repair
    Nov 9, 2005$15,000
30. Installation of new, non-electric wall sign "office evolution"

    Sign
    Jun 16, 2005$450
31. Tenant remodel on first and second floor fro current tenant

    Electrical
    Apr 12, 2005$8,500
32. Tenant remodel on first and second floor fro current tenant

    Alteration or repair
    Apr 12, 2005$25,000
33. Electric work associated with PMT2004-00488 for the interior remodel of an existing space

    Electrical
    Mar 26, 2004$60,000
34. Tenant remodel for office space

    Electrical
    Mar 25, 2004$4,000
35. Tenant remodel for office space

    Alteration or repair
    Mar 25, 2004$20,000
36. Fire sprinkler system

    Fire systems
    Mar 11, 2004$700
37. Interior commercial tenant remodel for an existing Group B office

    Electrical
    Feb 17, 2004$200
38. Interior commercial tenant remodel for an existing Group B office

    Alteration or repair
    Feb 17, 2004$10,000
39. Construction of a rest stop adjacent to Boulder Creek path

    Plumbing
    Jan 17, 2001$2,000
40. Construction of a rest stop adjacent to Boulder Creek path × 2 permits

    Grading
    Jan 17, 2001not listed
41. Construction of a rest stop adjacent to Boulder Creek path

    Alteration or repair
    Jan 17, 2001$40,000
42. Replace a permanent non-elecrtric wall sign reading "Cisco System"

    Sign
    Mar 27, 2000$425
43. Tenant finish the original general permit number is 925611

    Alteration or repair
    Nov 22, 1992$18,000
44. Site work the original general permit number is 1587

    Alteration or repair
    Sep 12, 1991not listed
45. Electrical hook up HVAC rtu

    Electrical
    Oct 9, 1990$950
46. Ten fnsh. The original general permit number is r3298

    Alteration or repair
    Oct 1, 1990$30,000
47. Ten fnsh. The original general permit number is r3018

    Alteration or repair
    Sep 13, 1990$26,700
48. Ten fnsh. The original general permit number is r3016

    Alteration or repair
    Sep 13, 1990$13,750
49. Ten fnsh. The original general permit number is r3017

    Alteration or repair
    Sep 11, 1990$50,000
50. Core bath

    Alteration or repair
    Jul 11, 1990$18,000
51. Landscape

    Other
    Mar 15, 1990not listed
52. Landscape

    New building
    Mar 15, 1990$25,000
53. Core & shell × 2 permits

    New building
    Mar 15, 1990$900,000
54. Ftgs & fdns

    New building
    Oct 31, 1989$50,000

• 4745 Walnut St newest permit Aug 11, 2025
• 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, 12:17 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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