Chicago Building Permits for Home Projects
Rules for the most common home projects in Chicago, Illinois, checked against the Chicago Department of Buildings's own pages, with live permit counts from the city's open data.
Do You Need a Permit? Project by Project
Chicago Roofing Permits
Usually yes2,791 in 12 mo
Roof repair (up to 25% of the roof), re-covering over one existing layer and replacement without structural work all go through Chicago's Express Permit Program, and the work must be done by an Illinois-licensed roofing contractor..
Chicago HVAC Permits
Yes401 in 12 mo
Replacing residential heating or cooling equipment, and installing a new single-unit heat pump or air conditioner, is done with an Express Permit.
Chicago Solar Panel Permits
Yes1,615 in 12 mo
New small rooftop solar systems up to 13.44 kW inverter output can use Chicago's Express Permit Program, with drawings and calculations from an Illinois-licensed architect or structural engineer.
Chicago Fence Permits
Sometimes1,209 in 12 mo
No building permit is needed for a fence no more than 5 feet high (measured on both sides) that meets the Chicago Zoning Ordinance.
Chicago Deck Permits
Usually yes1,350 in 12 mo
A permit is needed for most porch and deck work.
Permit Activity in Chicago
Projects We Have Not Verified Yet
Every project type we track in Chicago has a verified rule.
Chicago Permit Guides
Frequently Asked Questions
Who issues building permits in Chicago?
The Chicago Department of Buildings.
Which home projects need a permit in Chicago?
Roofing: usually yes; HVAC: yes; Solar: yes; Fence: sometimes; Deck: usually yes. Each project page explains the exact rule and links the official source.
How many home improvement permits does Chicago issue?
Across the 5 project types we track, Chicago issued about 7,366 permits in the last 12 months. Roofing was the most common, with 2,791.
Sources
Official sources checked on . Rules change; confirm with the department before you start work.
- Chicago DOB Express Permit Program: Reroofing (chicago.gov)
- Chicago DOB Building Permit Fee Tables (2026) (chicago.gov)
- Chicago DOB Express Permit Program: Mechanical (HVAC) Work (chicago.gov)
- Chicago DOB Express Permit Program: Small-Scale Solar PV System (chicago.gov)
- Chicago DOB: Fences (work not requiring a permit) (chicago.gov)
- Chicago DOB Express Permit Program: Fence or Trash Enclosure (chicago.gov)
- Chicago DOB: Porches, Decks and Balconies (work not requiring a permit) (chicago.gov)
- Chicago DOB Express Permit Program: Porch, Deck, Balcony or Fire Escape Repair (chicago.gov)
Permit data: Chicago Building Permits, refreshed October 30, 2026.