Do I need a permit for interior remodeling in Chicago?
Most likely yes. Interior remodeling usually requires a permit in Illinois. Confirm the specifics with Chicago.
Purely cosmetic work (painting, wallpaper, tile, cabinets, countertops, or removing/replacing up to 1,000 sq ft of drywall with no electrical/plumbing/mechanical changes) needs no permit. Most real remodels touch walls, wiring or plumbing and DO require a permit. Nonstructural interior alteration up to 2,000 sq ft (including new electrical service under 400 amps, added HVAC, or added plumbing up to 5 fixture units) uses the Express Permit Program; any structural work, new interior stairs, or converting unheated space to living space requires a plan-based permit. Chicago requires a licensed general contractor plus a licensed electrical contractor for any electrical work and a licensed plumbing contractor for plumbing (an owner-occupant of a detached single-family home may self-perform their own plumbing). Illinois publishes no statewide list of work exempt from a residential building permit, so the line is drawn by your municipality or county. Most Illinois jurisdictions treat purely cosmetic work such as painting, flooring, cabinets and countertops as exempt, while moving walls or altering electrical, plumbing or mechanical systems requires a permit. Confirm the local threshold before you start. Plumbing changes must be performed by an Illinois-licensed plumber under the statewide Illinois Plumbing Code, which is one of the few residential requirements Illinois does set at state level. A remodel that moves walls or includes electrical, plumbing, or mechanical work falls outside cosmetic exemptions, which cover finishes such as paint, flooring, trim, and cabinets. Each trade normally needs its own permit and inspection on top of the building permit, and removing or altering a load bearing wall usually requires a beam detail or engineering before the work is approved. Opening walls in an older home can trigger separate lead paint, asbestos, and smoke alarm requirements, so raise those with your department at application time.
Documents you may need
- Express Permit Program application (Interior Alteration / Nonstructural Interior Work) for work up to 2,000 sq ftLikely required
- Illinois-licensed architect or structural engineer drawings (if relocating walls/doorways or work in a non-residential unit)Sometimes required
- Licensed general contractor (Class A-E) informationLikely required
- Licensed electrical contractor and/or licensed plumbing contractor info (if trades are involved)Sometimes required
- Floor plan showing changesSometimes required
- Description of structural, electrical, or plumbing workLikely required
- Contractor informationSometimes required
Possible inspections
- Rough electrical, plumbing and mechanical inspections (where those trades are involved)
- Final inspection by a Department of Buildings inspector
- Rough inspection for electrical/plumbing/mechanical (when applicable)
- Final inspection
Frequently asked questions
- Do I need a permit for interior remodeling in Chicago?
- Most likely yes. Interior remodeling usually requires a permit in Illinois. Confirm the specifics with Chicago. Purely cosmetic work (painting, wallpaper, tile, cabinets, countertops, or removing/replacing up to 1,000 sq ft of drywall with no electrical/plumbing/mechanical changes) needs no permit. Most real remodels touch walls, wiring or plumbing and DO require a permit. Nonstructural interior alteration up to 2,000 sq ft (including new electrical service under 400 amps, added HVAC, or added plumbing up to 5 fixture units) uses the Express Permit Program; any structural work, new interior stairs, or converting unheated space to living space requires a plan-based permit. Chicago requires a licensed general contractor plus a licensed electrical contractor for any electrical work and a licensed plumbing contractor for plumbing (an owner-occupant of a detached single-family home may self-perform their own plumbing). Illinois publishes no statewide list of work exempt from a residential building permit, so the line is drawn by your municipality or county. Most Illinois jurisdictions treat purely cosmetic work such as painting, flooring, cabinets and countertops as exempt, while moving walls or altering electrical, plumbing or mechanical systems requires a permit. Confirm the local threshold before you start. Plumbing changes must be performed by an Illinois-licensed plumber under the statewide Illinois Plumbing Code, which is one of the few residential requirements Illinois does set at state level. A remodel that moves walls or includes electrical, plumbing, or mechanical work falls outside cosmetic exemptions, which cover finishes such as paint, flooring, trim, and cabinets. Each trade normally needs its own permit and inspection on top of the building permit, and removing or altering a load bearing wall usually requires a beam detail or engineering before the work is approved. Opening walls in an older home can trigger separate lead paint, asbestos, and smoke alarm requirements, so raise those with your department at application time.
- Who issues the permit in Chicago?
- The local building department for Chicago 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.