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September 2026 Building Permits

Official permit data from Boulder — updated Mon, Wed & Fri from the county permitting office.

Boulder, CO issued 854 building permits in September 2026, up 3% from the prior month. The most active zip code was 80304 with 235 permits. Electrical Permit — Electrical Permit was the top permit type, making up 18% of all permits issued.

Permits issued
854
vs. prior month
+3%
830 last month
Most active zip
80304
235 permits
Top permit type
Electrical Permit — Electrical Permit
18% of total

Permit activity by zip code

Top 10 zip codes by permit volume — September 2026

80304
235
80302
211
80305
168
80303
115
80301
93
80309
1
80503
1

Permits by type

September 2026 · Boulder, CO

Electrical Permit — Electrical Permit
150 (18%)
Mechanical Permit — Mechanical with Electrical
127 (15%)
Mechanical Permit — Mechanical HVAC/Solar
95 (11%)
Right-of-Way Permit — Right-of-Way Permit with Utilities
89 (10%)
Roofing Replacement Permit — Roofing Replacement Permit
81 (9%)
Fire Permit — Fire Permit
54 (6%)
Building Permit - Single Family Detached Dwelling — Alteration
46 (5%)
Utility Permit — Utility Permit
36 (4%)
Right-of-Way Permit — Right-of-Way Permit
21 (2%)
Wireless Facility Permit — Wireless Facility Permit
17 (2%)
Building Permit - Non-Residential — Alteration
13 (2%)
Siding Replacement Permit — Siding Replacement Permit
13 (2%)
Roofing Replacement Permit — Roofing ? Existing Solar Panels
11 (1%)
Building Permit - Single Family Detached Dwelling — Addition and Alteration
10 (1%)
Mechanical Permit — Water Heat - Single Family Residential
9 (1%)
Sign Permit — Sign Permit
9 (1%)
Utility Permit — Utility Sub-Permit
8 (1%)
Building Permit - Multifamily — Alteration
7 (1%)
Building Permit - Single Family Detached Dwelling — Repair
7 (1%)
Building Permit - Accessory — NRE- Unenclosed Structure
4 (0%)
Fence and Wall Permit — Fence and Wall Permit
4 (0%)
Building Permit - Accessory — RES- Enclosed Structure with Heating or Cooling
3 (0%)
Building Permit - Accessory — RES- Enclosed Structure without Heating or Cooling
3 (0%)
Building Permit - Single Family Attached Dwelling — Alteration
3 (0%)
Building Permit - Single Family Attached Dwelling — Repair
3 (0%)
Building Permit - Single Family Detached Dwelling — New
3 (0%)
Demolition Permit — Full Structure Deconstruction
3 (0%)
Plumbing Permit — Plumbing Permit
3 (0%)
Building Permit - Non-Residential — Tenant Finish
2 (0%)
Demolition Permit — Interior Non-Structural Deconstruction
2 (0%)
Electrical Permit — Temporary Construction Power
2 (0%)
Temporary Event Permit — Temporary Event Permit
2 (0%)
Wetland Permit — Non-Public Process
2 (0%)
Wetland Permit — Public Process
2 (0%)
Building Permit - Accessory — RES- Pool or Spa
1 (0%)
Building Permit - Mixed Use — Alteration
1 (0%)
Building Permit - Mixed Use — Repair
1 (0%)
Building Permit - Multifamily — Addition and Alteration
1 (0%)
Building Permit - Multifamily — New
1 (0%)
Building Permit - Multifamily — Repair
1 (0%)
Building Permit - Non-Residential — Addition and Alteration
1 (0%)
Building Permit - Non-Residential — Repair
1 (0%)
Erosion Control Permit — Erosion Control Permit
1 (0%)
Mechanical Permit — Building Heat - Single Family Residential
1 (0%)

Other months — Boulder

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