How to Pull a Building Permit in Chicago

Chicago requires permits for most construction work, and the rules are stricter than you might think. If you're doing structural work, electrical installations, plumbing, HVAC, or roofing, you need a permit. Electrical work is by far the most common permit type in Chicago, accounting for about 32% of all filings. Paint, drywall, flooring, and other cosmetic finishes don't require permits. The key is understanding what the city requires before you start work. The City of Chicago processes permits through the Department of Buildings. You'll submit your application online through the city's permitting portal, which is faster and more reliable than walking into an office. The general workflow is straightforward: you submit your application with required documents, the city reviews your plans (typically 2-6 weeks for standard permits), they approve or request revisions, and then you can schedule inspections as work progresses. Before you apply, gather your documentation. You'll need a completed application form, detailed site plans or drawings showing the scope of work, your contractor license, proof of insurance, and a clear description of what you're building or renovating. The city won't move forward without these, so don't try to shortcut this step. If you're working with an architect or engineer, their stamp on the plans speeds up approval. Costs vary based on project scope. The average permit value in Chicago is $743,490, but that covers major renovations. Your specific cost depends on the project type and scale. Standard residential electrical permits run lower; commercial or new construction runs much higher. Plan for 2-6 weeks for review on standard permits. Commercial work and new construction typically take 3-6 months because the city reviews more carefully. Here's a useful many contractors miss: monitor permit filings in your area. Over 2,500 permits are filed in Chicago every month. If you track new filings, you can reach out to property owners or general contractors before your competitors know about the project. Look for permits without a contractor assigned or ones in neighborhoods where you do good work. The top contractors in Chicago file 60-80 permits per month by staying on top of new opportunities. DigPermit tracks all 6,885 permits currently on file in Chicago and updates daily with new submissions. You can search by address, contractor, permit type, or filing date. Use this data to identify where work is happening, who's doing it, and where gaps exist in contractor coverage.