County Building Permits
Hamilton County, IN - 2026 Building Permit Guide
How to apply for a building permit in unincorporated Hamilton County, Indiana. Permit authority, application steps, fees, and inspection requirements.
Indiana Updated March 2026
Permit Authority
Covers the Hamilton County Plan Commission jurisdictional area shown on the county zoning jurisdiction map, generally the unincorporated county area rather than the incorporated cities and towns with their own permit routing.
- Department
- Hamilton County Plan Commission
- Address
- 1 Hamilton County Square, Suite 13, Noblesville, IN 46060
- Phone
- 317-776-8490
Application Process
- Confirm the parcel is in Hamilton County Plan Commission jurisdiction and download the correct application packet from the Plan Commission Resources page.
- Assemble the permit application, deed, parcel ID, site plan, construction documents, and other approvals listed on the county form.
- Submit electronically to planning.permits@hamiltoncounty.in.gov or deliver hard copy materials to the Plan Commission office.
- Staff reviews zoning and code compliance; special use buildings may require a scheduled meeting with staff before submittal.
- Pay permit fees after review and permit calculation.
- Receive the Improvement Location Permit / Building Permit, post the permit placard, and proceed to inspections and final certificate of occupancy.
Source: Hamilton County Plan Commission
General Requirements
County FAQ says all structural improvement, repair, or additions require a permit except limited exempt maintenance items; farm structures also require a permit in county jurisdiction.
Required Documents
- Signed application
- Owner and contractor contact info
- Parcel ID
- Recorded deed
- Scaled site plan
- Construction documents
- Truss calculations if used
- Septic/sewer and other outside approvals as applicable
- Permit validity
- Work must start within 6 months or the permit expires; work must be completed within 18 months for primary structures and 9 months for accessory structures.
- Building code
- Indiana Residential Code, 2020 Edition; Indiana Electrical Code, 2009 Edition; Indiana Plumbing Code, 2012 Edition; Indiana energy provisions under the 2020 residential code
- Owner-builder
- County form expressly asks whether the property owner is the general or primary contractor, indicating owner-builder applications are allowed.
Fees
- Minimum permit fee
- Examples from the 2022 schedule include $65 for decks, porches, gazebos, pergolas, and mini-barns; $90 for residential electrical permits; $125 for first residential demolition structure.
- Plan check fee
- Not separately posted as a line item for ordinary residential building permits.
- Permit fee formula
- Mixed flat plus square-foot formulas by permit type.
- Reinspection fee
- Residential inspection $100; residential reinspection $125; commercial inspection $150; commercial reinspection $175; timed inspection surcharge $100; work started before permit can be charged at up to 3x nominal permit fee.
- Payment note
- Fees are collected by the Hamilton County Plan Commission; no online payment workflow is clearly posted for permit fees.
Fees change. Verify current amounts at the official fee schedule.
Work That Does NOT Require a Permit
- Replacement of windows and doors
- Interior decorating
- Exterior painting
- Replacement of shingles on a roof
- Normal maintenance and repair operations listed in the fee ordinance, including roofing, flooring repairs, plumbing and heating repairs and replacement, insulation, and minor adjustments or replacements to doors and windows
Inspections
How to Schedule
- Contact Plan Commission staff (phone)
- Inspection hours
- Office hours Monday through Friday, 8:00 a.m. to 4:30 p.m.
Additional Resources
- Building code: Indiana Residential Code, 2020 Edition; Indiana Electrical Code, 2009 Edition; Indiana Plumbing Code, 2012 Edition; Indiana energy provisions under the 2020 residential code
- Zoning information: View zoning info
- Plan Commission Resources
- FAQ
- Building Permit PDF
- License lookup guide: Indiana Contractor License Requirements
- Contract template: Indiana Homeowner-Contractor Agreement
- Indiana hub: Indiana Contractor License & Permit Hub
Information on this page was last verified: March 2026. Permit rules and fees change — confirm current requirements directly with the Hamilton County Plan Commission before applying.
Frequently Asked Questions
Hamilton County Building Permit FAQ
- Do I need a building permit in unincorporated Hamilton County, IN?
- County FAQ says all structural improvement, repair, or additions require a permit except limited exempt maintenance items; farm structures also require a permit in county jurisdiction.
- How much does a building permit cost in unincorporated Hamilton County, IN?
- The minimum permit fee is Examples from the 2022 schedule include $65 for decks, porches, gazebos, pergolas, and mini-barns; $90 for residential electrical permits; $125 for first residential demolition structure.. Fees are calculated as: Mixed flat plus square-foot formulas by permit type.. Plan check fee: Not separately posted as a line item for ordinary residential building permits..
- How do I apply for a building permit in unincorporated Hamilton County, IN?
- 1. Confirm the parcel is in Hamilton County Plan Commission jurisdiction and download the correct application packet from the Plan Commission Resources page. 2. Assemble the permit application, deed, parcel ID, site plan, construction documents, and other approvals listed on the county form. 3. Submit electronically to planning.permits@hamiltoncounty.in.gov or deliver hard copy materials to the Plan Commission office. 4. Staff reviews zoning and code compliance; special use buildings may require a scheduled meeting with staff before submittal. 5. Pay permit fees after review and permit calculation. 6. Receive the Improvement Location Permit / Building Permit, post the permit placard, and proceed to inspections and final certificate of occupancy.
- What work is exempt from building permits in unincorporated Hamilton County, IN?
- The following work is generally exempt: Replacement of windows and doors; Interior decorating; Exterior painting; Replacement of shingles on a roof; Normal maintenance and repair operations listed in the fee ordinance, including roofing, flooring repairs, plumbing and heating repairs and replacement, insulation, and minor adjustments or replacements to doors and windows.
- How do I schedule a building inspection in unincorporated Hamilton County, IN?
- Inspections can be scheduled via: Contact Plan Commission staff.
Need help with your project?
Navigating permits in Hamilton County Plan Commission Jurisdiction can be complicated.
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This page is an educational resource provided by jaspector.com. It is not legal advice, and it does not substitute for official guidance from the permit authority listed above. Permit requirements, fees, and processes change frequently. Always verify current requirements directly with the issuing department before beginning any construction project. Use of this page does not create an attorney-client relationship. Jaspector assumes no liability for any outcomes arising from reliance on this information.