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When a permit is required
Permit triggers and exempt work for Darien
New construction, additions, basement remodeling, decks, fences, sheds, pools, patios, driveways, generators, water heaters, AC.
- Exempt Minor roof repairs
- Exempt Siding
- Exempt Soffits
- Exempt Same-size window/door replacement
- Exempt Cosmetic interior
Note: Confirm exempt work categories with Community Development before proceeding.
- Plat of Survey
- Construction plans
- Contractor registration
- Building code
- 2021 IBC, 2021 IRC, 2020 NEC, Illinois Plumbing Code. Effective March 1, 2025.
- Owner-builder
- Allowed.
- Contractor requirements
- Contractors registered ($60/year); plumbers/roofers provide state license.
Application process
Application → plan check → issuance → inspection → final
- 01 Create account on OpenGov portal.
- 02 Submit application and upload plans/survey.
- 03 Plan review period.
- 04 Pay fees online.
- 05 Permit issuance.
Fee schedule
Effective Current
Online via OpenGov
Fees change periodically. Confirm at the official fee schedule ↗ (effective Current) before budgeting.
Required inspections
Scheduling and sequence
- (630) 353-8115 by 2pm day before (phone)
- Scheduling deadline
- Call by 2pm day before inspection.
- Inspection hours
- Monday - Friday, 8:30 AM - 5:00 PM
- Time windows
- Standard business hours.
Typical sequence: Rough, Final.
Contact Community Development for remote inspection eligibility.
Frequently asked
Common questions about Darien permits
01 Do I need a building permit in Darien, IL? ▸
02 How much does a building permit cost in Darien, IL? ▸
03 How do I apply for a building permit in Darien, IL? ▸
04 What work is exempt from building permits in Darien, IL? ▸
05 How do I schedule a building inspection in Darien, IL? ▸
Educational reference. Permit rules and fees change — confirm current requirements directly with Community Development Department before applying. Jaspector is not legal advice.