Do I need a permit to remodel in Cambridge, MA? Who can pull it, fees, review time and the HIC catch

The Cambridge rule

From the City's Apply for a Building Permit page and ISD permit FAQ, read 23 October 2026. The state adds that "A licensed construction supervisor or registered design professional (RDP) must oversee construction" on buildings under 35,000 cubic feet, and that "Massachusetts does not recognize out of state contractor licenses" (Mass.gov).

The homeowner permit and the HIC catch

You can pull the permit yourself on a one- or two-family you live in, using the homeowner affidavit on ISD's building permit forms page. The City's Step by Step Guide spells out the cost: a homeowner with the permit "may be liable for contractors working on the project and will not be eligible for protection under the provisions of the Homeowners Improvement Contractor Law", and it calls it "generally a good idea" to have the permit issued to a licensed construction supervisor. The state's HIC Guaranty Fund pays up to $25,000 only if the contractor, not the homeowner, secured the permit (Mass.gov). A contractor who asks you to pull it is asking you to give that up.

How to apply

From the City's Apply for a Building Permit page:

1. Register and apply in the City's online permitting system at cambridgema.portal.opengov.com, uploading documents as PDFs.
2. The application is "NOT CONSIDERED RECEIVED BY INSPECTIONAL SERVICES UNTIL AN INVOICE IS SENT AND PAYMENT IS PROCESSED". ISD checks completeness only, then routes it to other City departments, whose approvals you arrange yourself.
3. ISD invoices the fee; pay online (with a service fee) or by check at the counter.
4. ISD reviews, then issues or denies within 30 days of payment. The permit card is picked up at the counter and stays on site until the work is done.
5. Electrical, plumbing and gas permits are pulled separately by the licensed trades (Cambridge electrical permit).

What it costs

From ISD's Building Fees table (no effective date printed): "All new construction Repairs & Alterations" is $20.00 per $1,000 or fraction, $50.00 minimum, and "$15.00 per $1,000.00 or fraction thereof of construction cost for three residential dwelling units or less".

Those values bracket the middle half of Cambridge remodelers' usual jobs (below). The trade permits are extra, and the online payment service fee is on top.

What 3,512 Cambridge remodel permits show

Two things stand out. The value range is enormous, $13,679 to $109,800 across firms, because the group runs from window and energy-efficiency jobs (the busiest filers include Homeworks Energy and Renewal by Andersen) to gut renovations. And Cambridge remodel permits rarely get marked Complete: 35 of the 37 busiest firms are under 70%. An Active permit a year on is normal here, so ask ISD on 617-349-6100 whether the final inspection happened before you make the last payment. Prices by home value are on Cambridge remodel cost; counts by year on Cambridge permit statistics.

See every Cambridge remodeler by permits completed →

Before you hire

Ask for the firm's HIC registration and the supervisor's CSL, check both (Cambridge contractor license lookup), and look the firm up on the Cambridge remodeler list. National prices are in home remodel cost; other cities' rules in do I need a permit for a home remodel and kitchen remodel; past permits on your address in Cambridge building permit search.

What this does not tell you

Cambridge publishes a status but no completion date, so our days to Complete are estimates, and many Cambridge permits stay Active after the work is done, so a low Complete share is not proof the work was unfinished. Owner-pulled permits are left out of our file. The Step by Step Guide is an older City brochure; where it and the current pages differ, the current pages win, and ISD can confirm.