Sign Regulations in Thornton, Colorado
Thornton, Colorado has specific sign regulations covering 17 sign types across 5 zoning districts. Regulated sign types include Monument Sign, Electronic Sign, Special Event Sign. Height restrictions apply. Permits are required for most commercial signs. Use PermitPal to get instant access to the complete regulations.
Data last verified: February 18, 2026
Sign Regulation Overview for Thornton, Colorado
Sample Sign Requirements in Thornton
| Sign Type | Max Height | Max Area | Setback |
|---|---|---|---|
| Canopy Sign | Controlled by canopy structure | 60 square feet (total for all signs on canopy) | Controlled by canopy structure |
| Wall Sign | Controlled by wall on which sign is attached | Greater of 60 sq ft or 8% of area of largest elevation of the main building(s) on the lot; For high-rise: specific caps depending on stories. | Controlled by wall |
| Light Pole Banner | Must be attached below the light arm. Minimum clearance: 7 feet from bottom arm supporting the banner (except reduced if does not impede/block traffic). | 15 square feet per banner | Minimum clearance: 7 feet to bottom arm; No minimum setback otherwise. |
* Sample data shown. Actual requirements may vary by zone. Use PermitPal for complete, location-specific regulations.
Sign Types Covered
17
- Monument Sign
- Electronic Sign
- Special Event Sign
- Temporary Sign
- +2 more types
Zoning Districts
5
Different zoning districts with specific sign regulations
Data Includes
- Permit requirements
- Height restrictions
- Illumination rules
Official Resources for Thornton
Other Cities in Colorado
Frequently Asked Questions
In Thornton, wall signs can be up to Controlled by wall on which sign is attached. Height limits vary by zoning district and sign type. Use PermitPal to get exact requirements for your specific location.
To get a sign permit in Thornton, submit an application to the local building or planning department with sign dimensions, location, and design specifications. Our data confirms permits are required for most commercial signs. Processing typically takes 1-4 weeks. PermitPal helps you identify specific requirements and prepare complete applications.
In Thornton, regulated sign types include Monument Sign, Electronic Sign, Special Event Sign, Temporary Sign, and 2 more types. Most commercial signs require permits. Temporary signs and certain small signs may be exempt. Use PermitPal for specific exemptions.
Sign setback requirements in Thornton vary by zone and sign type, typically ranging from 5-15 feet from property lines. Use PermitPal for specific setback requirements at your location.
Digital and LED signs in Thornton are regulated with specific requirements for brightness, animation, and message duration. Thornton has documented illumination rules in our database. Use PermitPal to see the exact requirements for electronic message centers.
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