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City of Boulder (CO)

Colorado Authority Having Jurisdiction Solar permitting requirements
NEC Code Version2023
Fire Code Version2018 Building Code
SolarAPP+ StatusTargeted
Wet Stamps RequiredDigital Structural
Fire Setback Enforced1

Codes

NEC Code Version
2023
Fire Code Version
2018 Building Code
Code List

2024 BUILDING AND SAFETY DIVISION ADMINISTRATIVE CODE

2024 INTERNATIONAL BUILDING CODE

2024 INTERNATIONAL RESIDENTIAL CODE

2024 UNIFORM MECHANICAL CODE

2024 UNIFORM PLUMBING CODE

2023 NATIONAL ELECTRICAL CODE

2024 INTERNATIONAL SWIMMING POOL AND SPA CODE

2024 CITY OF BOULDER ENERGY CONSERVATION CODE

2024 INTERNATIONAL FIRE CODE

ASCE Code Specification
ASCE 7-16

SolarAPP+ & submittal

SolarAPP+ Status
Targeted
Any SolarAPP+ Restrictions
1
SolarAPP+ Restrictions
MPU,Derate
How Many Plansets Required
1
Revision Required
1
Rough Inspection
Footing inspection
New Planset Required For Module Swap
1

Stamps

Ee Stamp Required On SLD
Yes - 10kW+
Wet Stamps Required
Digital Structural
Structural Calculations Required
Yes
Stamp Location On Plans
Unspecified
Date On Stamps
Expiration Date

Fire setbacks

Fire Setback Enforced
1
Setback Notes

3' from ridge 18" from valley and hip ridge

Structural & loads

Wind Speed
999
Wind Notes

Per the Colorado Front Range Wind Table, the ultimate design wind speed shall be 165 mph for areas west of Broadway Street and 150 mph for areas east of Broadway Street. Use property search to final parcel specific snow load and wind speed requirements.

Snow Load
999
Snow Load Notes

Use property search to find parcel specific snow load and wind speed requirements. https://maps.boco.solutions/propertysearch/

Reducible Snow Load Allowed
1
Max Attachment Spacing
96
Structural Notes

All Jobs: Structural calcs and structural letter to indicate 165 mph v-ult wind velocity.

Over 10 kW: EE STAMPS ARE REQUIRED FOR SYSTEMS OVER 10KW

Minimum Ground On Roof
#6

Electrical

Electrical Load Calcs Required
Derates
Allowed POI
Meter Adapter,PV Breaker,Line Side Taps,Load Side Taps
Panel Schedule Required
Partial Home Backup
Temperature Rating
90
De Rating Ampacity
0.96

Battery / ESS

Unique Battery Placards Needed
0
ESS Notes

Standard

Separate ESS Disconnect Required
ESS Disconnect
ESS Elevation Detail Required
No

Plan set

Electrical Diagram

Standard

Ground mount

Ground Mount Fencing Required
No
Ground Mount Notes

Soil Class: Clay

Ground Mount Requires Soil Sample
Soil Study
Compiled from public records, 2026. Requirements change with code cycles and local amendments. Verify with the City of Boulder (CO) building department before you rely on this, and treat it as a research head start, not a ruling. Getting quotes? Run them through the quote checker first.