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County of Jefferson (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

2018 INTERNATIONAL RESIDENTIAL CODE

2018 INTERNATIONAL BUILDING CODE

2018 INTERNATIONAL ENERGY CONSERVATION CODE

2018 INTERNATIONAL EXISTING BUILDING CODE

2018 INTERNATIONAL FUEL GAS CODE

2018 INTERNATIONAL MECHANICAL CODE

2018 INTERNATIONAL PLUMBING CODE

2023 NATIONAL ELECTRICAL 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
Rough Electrical
New Planset Required For Module Swap
1

Stamps

Ee Stamp Required On SLD
No
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

Standard

Structural & loads

Wind Speed
130
Wind Notes

Exposure Category C

Snow Load
999
Snow Load Notes

* Find Roof snow load and Ground snow load requirements on Jefferson County Address Wizard. * Roof & ground snow load varies due to changes of Elevation and Location. Check on Jeff Co website for "Address Wizard": * The ground snow load is to be used as a baseline to determine roof snow load. The roof snow load should be separate on the calcs from roof live/dead loads.

Address Lookup - Address Search (jeffco.us)

Address Lookup | Jefferson County, CO (jeffco.us)

Reducible Snow Load Allowed
0
Max Attachment Spacing
96
Structural Notes

SE digital stamps on corresponding PV pages & PE Letter / Calcs. Ground and roof snow loads required on structural calcs and letter. WS: 130 MPH GSN: Up to 72 LBS * Find Roof snow load and Ground snow load requirements on Jefferson County Address Wizard.

Minimum Ground On Roof
#6

Electrical

Electrical Load Calcs Required
Derates
Allowed POI
PV Breaker,Meter Adapter,Load Side Taps,Line Side Taps
Panel Schedule Required
Partial Home Backup
Temperature Rating
90
De Rating Ampacity
1

Battery / ESS

Unique Battery Placards Needed
0
ESS Notes

No published information about battery placement. Mays, Jovan. AHJ: City of Lakewood (CO). Equipment in garage no longer required. [DCR 122820] Battery and inverter are supposed to be inside the garage. [DCR 083120] PM required for projects over 10kW-DC. Call out STEEL PRODUCTION METER, 120/240V 3-WIRE . Install a brass tag that says PV PROD and the house number but not the whole address. For example, if the address is 6200 West Mexico Avenue, the brass tag should say PV PROD 6200 .

Separate ESS Disconnect Required
ESS Disconnect
ESS Elevation Detail Required
No

Plan set

Electrical Diagram


Custom Placards Required
0

Ground mount

Ground Mount Fencing Required
No
Ground Mount Notes

Soil Class: Clay

Ground Mount Requires Soil Sample
Soil Study
Setback Front Yard
50
Setback Back Yard
5
Setback Side Yard
20
Compiled from public records, 2026. Requirements change with code cycles and local amendments. Verify with the County of Jefferson (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.