Building permits in Lake County, Illinois
259 building permits in Lake County, Illinois that we can share, sorted by trade. They come from public records. Lake County towns use a mix of online permit portals and paper forms, so some lists can be read directly and others come only from the town's own records.
Updated October 25, 2026.
No town in Lake County has building permits we can share yet. The coverage map shows what is being collected.
Contractors: see Permit Leads for new permits by trade, and our guides to roofing, HVAC and solar permit leads.
Get building permits for Lake County
Permit Leads is available by request. What's in it · Pricing.
Email us to request access to Permit Leads. Tell us who you are and which counties or towns you need, and we'll get back to you.
We use what you send only to answer your request. See our privacy page.