Permit Required
Do you need a permit to install a gas line in Chicago, IL?
A plumbing permit is required for gas piping work; many stand-alone gas-piping projects are handled through the Express Permit Program.
✓ Verified from official source
Source: Chicago Dept of Buildings — Express Permit Program: Plumbing Work — Verified 2026-06-26
Permit rules vary by property and change over time. This is an informational guide, not legal advice — always confirm with City of Chicago Department of Buildings before starting work.
How to get the permit in Chicago
Building department
Apply online
Phone
312-744-3449
Code in force
Chicago does not adopt the IRC; it enforces its own 2019 Chicago Construction Codes (Chicago Building Code, Title 14, based in part on the 2018 ICC family)
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