Permit guides › Boston › BOS-CR-08
Plumbing Permit: Boston restaurant guide
Boston ISD
What it is
Required for new or changed plumbing: sinks, hand sinks, dish machines, grease traps, water heaters and drain lines.
When a restaurant needs it
Any build-out that adds or moves plumbing fixtures.
How to apply
The licensed plumber applies through the Inspectional Services online portal and requests the inspection when the work is done.
Documents you’ll need
- Front and back of valid plumbing license
- Certificate of Liability Insurance
- MA Workers' Compensation Affidavit
- Description of work and estimated cost
Fee
$20 base fee plus $5 per fixture
Processing time
Typically quick once complete; must be used within 6 months
Renewal
None (closed after final inspection)
Who files
Only a licensed contractor may apply, and the applicant must be the contractor doing the work.
Good to know
Starting work before the permit is issued can mean double fees or code violations.
Official source
Get your personalized Boston permit plan
Build my free planAnswer a few questions about your space and get every permit in order, with a timeline, a cost range, walkthroughs, and every application filled in for you to sign with Open.
Last reviewed 2026-10-06. Guidance only, not legal advice.