Building Permits in Hamilton County
Last Updated: August 2026
Building permits in Hamilton County are issued by the planning or building department responsible for the property’s location.
Before applying, first determine whether your property falls under Hamilton County or a city/town planning jurisdiction.
Quick Answer
For property within the Hamilton County Plan Commission jurisdiction:
Hamilton County Plan Commission
9615 E. 148th Street, Suite 101
Noblesville, IN 46060
Phone: 317-776-8490
View Hamilton County Permit Applications
Not sure which office handles your address?
When Is a Building Permit Required?
Within the Hamilton County Plan Commission jurisdiction, a permit is generally required for structural improvements, repairs and additions.
Common projects that may require permits include:
- New homes
- Additions and remodels
- Garages and accessory structures
- Decks and gazebos
- Swimming pools
- Electrical work
- Agricultural buildings
- Commercial construction
Hamilton County says replacement windows and doors, interior decorating, exterior painting and replacement roof shingles are among the improvements that do not require a county building permit.
View Hamilton County Building Permit Information
Find the Correct Permit Office
Hamilton County has nine planning jurisdictions, including:
- Hamilton County
- Carmel
- Fishers
- Noblesville
- Westfield
- Cicero/Jackson
- Sheridan
- Arcadia
- Atlanta
If the property is inside one of the municipal jurisdictions, you’ll generally apply through that city’s or town’s building/planning department instead of Hamilton County.
Find Your Hamilton County Planning Jurisdiction
Applying for a Hamilton County Building Permit
Hamilton County provides applications for:
- Residential building permits
- Commercial permits
- Accessory structures
- Electrical permits
- Pools
- Ponds
- Agricultural structures
- Signs
- Home occupations
- Variances and special uses
View Permit Applications & Forms
Electronic permit submission is also available through the county’s Plan Commission pages.
What You May Need
Requirements depend on the project.
For a typical residential building permit, Hamilton County may require items such as:
- Completed permit application
- Parcel ID number
- Recorded deed
- Site plan
- Property lines and setbacks
- Easement information
- Drainage approval
- Construction documents
- Contractor information
Additional documentation may be required depending on the project.
Building Inspections
A permit may require inspections at different stages of construction.
Don’t cover or complete work that must first be inspected.
→ View Hamilton County Building Inspections
Other Permits You May Need
Depending on your project, a building permit may not be the only approval required.
You may also need:
→ Septic Permits
→ Fence Permits
→ Sign Permits
→ Zoning Rules
Local Tips
- Check your jurisdiction first. This is the most important step.
- Don’t assume Hamilton County government issues your permit just because you live in Hamilton County.
- Ask whether zoning approval is required before submitting building plans.
- Have your parcel number available.
- Check setback and easement requirements before deciding where to place a structure.
- Confirm required inspections when your permit is issued.
Frequently Asked Questions
Where do I get a building permit in Hamilton County?
It depends on the property’s location. Hamilton County has nine different planning jurisdictions.
Check Your Planning Jurisdiction
Do I need a permit for a remodel?
Structural improvements, repairs and additions generally require permits within the Hamilton County Plan Commission jurisdiction.
Do I need a permit to replace roof shingles?
Hamilton County specifically lists replacement roof shingles among the improvements that don’t require a building permit within the county Plan Commission jurisdiction.
Where can I download the permit forms?
Hamilton County Permit Applications
Do I need inspections after getting a permit?
Many permitted projects require inspections during construction.
Related Pages
→ Zoning Rules
→ Septic Permits
→ Permits & Rules
Official Resources
Hamilton County Plan Commission
Building permits, zoning information and county planning requirements.
Hamilton County Plan Commission
Hamilton County Permit Applications
Official applications for building, electrical, pool, accessory structure and other permits.
Hamilton County Planning Jurisdictions
Determine which building or planning department handles your property.
Summary
Before applying for a building permit in Hamilton County, first determine which planning jurisdiction covers your property.
Properties within the Hamilton County Plan Commission jurisdiction can obtain applications and permit information directly from the county. Properties within Carmel, Fishers, Noblesville, Westfield and other municipal jurisdictions are handled by their respective local departments.