Do I need a permit for addition or structural alteration in Romeoville?
Yes. In Illinois, addition or structural alteration generally requires a permit, and Romeoville is no exception.
Additions and structural alterations require a permit in essentially all Illinois jurisdictions. Illinois has no statewide residential building code for this work, so the permit threshold is set by your municipality or county. The statewide codes that took effect on 1 January 2025 apply to commercial, public and state-funded buildings. Many local codes require zoning review for lot coverage and setbacks, and properties in a mapped flood zone face additional elevation requirements. Additions and alterations are reviewed under the 2021 IBC and 2021 IRC with local amendments adopted by the Village. Zoning review for setbacks, lot coverage and height is required in addition to the building permit. All trade contractors must be registered, bonded and insured with Romeoville before a permit is issued.
Documents you may need
- Plat of survey / site plan showing setbacksrequired
- Construction drawings (floor plan, elevations)required
- Structural details or engineered plansLikely required
- Contractor license and insurance informationSometimes required
- Room addition permit application via OpenGov portalrequired
- Plat of survey and scaled plans (floor plan, elevations, structural details)required
- Registered and bonded contractors for each traderequired
Possible inspections
- Footing/foundation inspection
- Framing inspection
- Rough electrical/plumbing/mechanical inspection
- Final inspection
- Footing inspection
- Foundation inspection
- Rough electrical, plumbing and mechanical inspections
- Insulation inspection
Frequently asked questions
- Do I need a permit for addition or structural alteration in Romeoville?
- Yes. In Illinois, addition or structural alteration generally requires a permit, and Romeoville is no exception. Additions and structural alterations require a permit in essentially all Illinois jurisdictions. Illinois has no statewide residential building code for this work, so the permit threshold is set by your municipality or county. The statewide codes that took effect on 1 January 2025 apply to commercial, public and state-funded buildings. Many local codes require zoning review for lot coverage and setbacks, and properties in a mapped flood zone face additional elevation requirements. Additions and alterations are reviewed under the 2021 IBC and 2021 IRC with local amendments adopted by the Village. Zoning review for setbacks, lot coverage and height is required in addition to the building permit. All trade contractors must be registered, bonded and insured with Romeoville before a permit is issued.
- Who issues the permit in Romeoville?
- The local building department for Romeoville handles permitting. This page lists its contact details and online portal. Your mailing city is not always the permitting authority, so confirm the jurisdiction before you apply.
- How do I find out the exact requirements for my project?
- Run the free PermitRoadmap check for your specific project and answers. It returns the likely permits, documents, inspections, and next steps, each linked to its official source.
PermitRoadmap is an independent informational service and is not affiliated with any city, county, state agency, or permitting authority. Results are informational and do not replace confirming requirements with the local permitting authority.