City Building Permits
Town of Plainfield, IN - 2026 Building Permit Guide
How to apply for a building permit in Town of Plainfield, Indiana. Permit authority, application steps, fees, and inspection requirements.
Permit Authority
Plainfield runs its own permit, inspection, and fee system through Development Services and iWorQ.
- Department
- Building, Town of Plainfield Development Services
- Address
- 206 W. Main Street, Plainfield, IN 46168
- Phone
- 317-754-5376
Online Permit Portal
Platform: iWorQ • Account required: Yes • Submission: Online only
Additional resources:
Application Process
- Go to the Plainfield permit page and click the iWorQ application link.
- Complete the online building application and upload the plans required for the applicable residential, commercial, industrial, fire, engineering, or utility permit type.
- Plainfield states incomplete submittals will not be accepted.
- Once a completed application and required documents are received, the town begins review. Typical review time depends on workload.
- When approved, the town invoices the fees for the permit.
- Pay permit and utility fees. Plainfield states permits may be paid online using the inspection portal.
- After payment, the permit placard is emailed to the applicant and must be posted on site until the Certificate of Occupancy is issued.
Typical processing time: Typical review time depends on current workload; no fixed number of days was posted
General Requirements
Plainfield posts permit categories for residential new building, additions, decks, pools, electrical, solar, detached garages, basement finishes, commercial and industrial building and site work, fire systems, engineering site and infrastructure permits, demolition, and right-of-way or utility permits.
Required Documents
- As-designed energy certification
- Floor plans with square footage
- Electrical and plumbing plans
- Foundation plans
- Elevations
- Cross sections
- Engineer or surveyor plot plan with lot information, setbacks, erosion control, elevations, drainage, swales, utilities, and related site data
- Permit validity
- Certificate of Occupancy will not be issued until the home or project follows Plainfield building code provisions and permit posting requirements remain in effect during construction.
- Building code
- Residential submittal packet requires certification that the dwelling meets the 2020 Energy Code; occupancy will not be issued until the project follows the provisions of the Town of Plainfield Building Codes.
- Contractor requirements
- Inspection requests through the portal require the contractor access code, typically the main contractor phone number minus area code and dashes.
Fees
- Minimum permit fee
- $100
- Plan check fee
- Single-family plan review $100, residential accessory plan review $50, commercial plan review $500 plus $0.01 per square foot, industrial plan review $500 plus $0.01 per square foot
- Permit fee formula
- Mixed flat and square-foot schedule. Examples include single-family dwelling at $250 plus $0.05 per square foot, residential addition or remodel at $100 plus $0.05 per square foot, commercial principal building and additions at $300 plus $0.10 per square foot, and industrial principal buildings at $1,000 plus $0.01 per square foot.
- Reinspection fee
- Residential first reinspection $150, second $300, subsequent $600; commercial or industrial first reinspection $200, second $400, subsequent $600
- Penalty (no permit)
- Working without inspection carries minimum penalties of $300 residential and $600 commercial or industrial; occupancy without a Certificate of Occupancy can be $1 per square foot up to $2,500 per day
- Payment note
- Permit and utility fees are due at issuance and may be paid online through the inspection portal
Fees change. Verify current amounts at the official fee schedule.
Work That Does NOT Require a Permit
Contact the Building, Town of Plainfield Development Services to confirm whether your project requires a permit before starting work.
Inspections
How to Schedule
- iWorQ inspection portal (online)
- Scheduling deadline
- Requests must be made two business days in advance
- Inspection hours
- Monday through Friday only; not on official town holidays
Typical inspection sequence: Residential inspection procedures show footing or foundation or under-slab, rough-in, energy efficiency, and occupancy; commercial and industrial procedures are posted separately on the permit page
Additional Resources
- Building code: Residential submittal packet requires certification that the dwelling meets the 2020 Energy Code; occupancy will not be issued until the project follows the provisions of the Town of Plainfield Building Codes.
- Zoning information: View zoning info
- Development Services Information
- Building Code Information
- 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 Building, Town of Plainfield Development Services before applying.
Frequently Asked Questions
Town of Plainfield Building Permit FAQ
- Do I need a building permit in Town of Plainfield, IN?
- Plainfield posts permit categories for residential new building, additions, decks, pools, electrical, solar, detached garages, basement finishes, commercial and industrial building and site work, fire systems, engineering site and infrastructure permits, demolition, and right-of-way or utility permits.
- How much does a building permit cost in Town of Plainfield, IN?
- The minimum permit fee is $100. Fees are calculated as: Mixed flat and square-foot schedule. Examples include single-family dwelling at $250 plus $0.05 per square foot, residential addition or remodel at $100 plus $0.05 per square foot, commercial principal building and additions at $300 plus $0.10 per square foot, and industrial principal buildings at $1,000 plus $0.01 per square foot.. Plan check fee: Single-family plan review $100, residential accessory plan review $50, commercial plan review $500 plus $0.01 per square foot, industrial plan review $500 plus $0.01 per square foot.
- How do I apply for a building permit in Town of Plainfield, IN?
- 1. Go to the Plainfield permit page and click the iWorQ application link. 2. Complete the online building application and upload the plans required for the applicable residential, commercial, industrial, fire, engineering, or utility permit type. 3. Plainfield states incomplete submittals will not be accepted. 4. Once a completed application and required documents are received, the town begins review. Typical review time depends on workload. 5. When approved, the town invoices the fees for the permit. 6. Pay permit and utility fees. Plainfield states permits may be paid online using the inspection portal. 7. After payment, the permit placard is emailed to the applicant and must be posted on site until the Certificate of Occupancy is issued.
- How long does it take to get a building permit in Town of Plainfield, IN?
- Typical processing time is Typical review time depends on current workload; no fixed number of days was posted.
- How do I schedule a building inspection in Town of Plainfield, IN?
- Inspections can be scheduled via: iWorQ inspection portal. Requests must be made two business days in advance.
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