permits.llc

Middlesex County, Massachusetts

Dunstable, MA Building Department and Permits

Inspections & Permitting

Hours
Admin Mon-Thu 9:00-4:00; Building Inspector Mon 2:00-4:00
Inspector of Buildings
Dana E. Barnes, Building Inspector (ext. 226)

Verified 2026-09-16 against the official Dunstable website.

Do I need a permit in Dunstable, and who pulls it?

In Massachusetts, most permits are pulled by the licensed contractor doing the work, not the homeowner. For one- and two-family homes the state building code requires a licensed construction supervisor or a registered design professional to oversee construction, and for existing owner-occupied one- to four-family homes the contractor must also be registered with the Home Improvement Contractor program.

The homeowner exception is narrow. The building code lets an owner-occupant of a one- or two-family home apply for a building permit for work on their own home, but it applies to building permits only: electrical work may only be done by a master or journeyman electrician licensed by the state, and plumbing and gas work only by a licensed plumber or gas fitter, each under a permit issued to that licensee. It also has a cost the state warns about directly: a homeowner who pulls the building permit themselves may not be eligible for the Guaranty Fund if the contractor's work goes wrong.

Need a licensed contractor? See HVAC, roofing and other contractors serving Dunstable on Mass Home Comfort.

Sources: When is a Construction Supervisor License required?; Massachusetts State Building Code, 780 CMR; HIC Homeowner Resources; Electricians consumer fact sheet; Plumbers and gas fitters consumer fact sheet.

Heating and cooling in DunstableReplacing a furnace, boiler, water heater or central air conditioner, or installing a heat pump or ductless mini split, is licensed work in Massachusetts. Anything on the gas side, a gas furnace, boiler, water heater or range connection, is gas fitting, and the state issues gas-fitting permits only to a licensed plumber or gas fitter.Read more

The electrical side of a heat pump, mini split or AC condenser needs an electrical permit pulled by a licensed electrician. Your Dunstable building department may also require a mechanical permit for the equipment itself; the contractor pulls that too.

Heating and cooling installers are one of the trades mass.gov specifically exempts from Home Improvement Contractor registration, so do not expect an HIC number from an HVAC company. What you should expect is a gas-fitter or plumber licence for gas equipment and an electrician's licence for the wiring, with a permit on file for each.

If you are counting on a Mass Save rebate for a heat pump, the equipment must be installed by a contractor participating in the Mass Save Heat Pump Installer Network. A permit trail is part of how that work is documented, so an unlicensed, unpermitted install can cost you the rebate as well as the inspection.

Sources: Plumbers and gas fitters consumer fact sheet; Electricians consumer fact sheet; HIC Homeowner Resources; Air source heat pump rebates.

Full Massachusetts guide
Windows and doors in DunstableReplacing windows or exterior doors is not on the list of work the Massachusetts building code exempts from a permit, so plan on one. The code's own exemption for "ordinary repairs" does not cover anything that removes or changes a required means of egress, which is exactly what a bedroom window is, and changing the size of an opening is an alteration to the structure.Read more

Whether a strict like-for-like swap in the same opening counts as an ordinary repair is a call the Dunstable building department makes, so ask before assuming.

In an existing owner-occupied one- to four-family home, the contractor who replaces your windows or doors must be registered as a Home Improvement Contractor, and the state's guidance is that the registered contractor pulls the building permit. A written contract is required by law for any home improvement job over $1,000, and the contractor may not collect more than one-third of the price up front.

If Dunstable has a local historic district, exterior window and door changes there usually need the historic district commission's approval before the building permit issues. That is a town rule, not the state code, so check with the building department.

Sources: Massachusetts State Building Code, 780 CMR; HIC Homeowner Resources; When is a Construction Supervisor License required?.

Full Massachusetts guide
Roofing in DunstableRe-roofing and roof replacement are not among the projects the Massachusetts building code exempts from a permit, so in Dunstable treat a roof job as permitted work. Because the work touches the building's structure and weather envelope, it is overseen by a licensed construction supervisor, and on an existing owner-occupied one- to four-family home the roofing contractor must also hold Home Improvement Contractor registration.Read more

The state's guidance is that the registered contractor applies for the permit, not you.

The building code has specific requirements for roof coverings, underlayment and ice protection that the inspector checks against, and they depend on the roof type and the edition of the code in force. Rather than quote them here, ask the Dunstable building department what it inspects for on a re-roof; the contractor pulling the permit is expected to know.

Sources: Massachusetts State Building Code, 780 CMR; When is a Construction Supervisor License required?; HIC Homeowner Resources.

Full Massachusetts guide
Siding in DunstableResiding a house is not on the list of work the Massachusetts building code exempts from a permit, so in Dunstable plan on a building permit for siding replacement. The code's "ordinary repairs" exemption is meant for patching what is there, not stripping and recladding the envelope, and the Dunstable building department decides where that line falls; the contractor pulling the permit is expected to ask.Read more

On an existing owner-occupied one- to four-family home the siding contractor must be registered as a Home Improvement Contractor, and the state's guidance is that the registered contractor applies for the permit rather than the homeowner. A written contract is required by law for any home improvement job over $1,000, with no more than one-third of the price collected up front.

If Dunstable has a local historic district, a change of siding material or profile on a building inside it usually needs the historic district commission's approval before the building permit issues. That is a town rule, not the state code, so check with the building department.

Sources: Massachusetts State Building Code, 780 CMR; HIC Homeowner Resources; When is a Construction Supervisor License required?.

Full Massachusetts guide

Recent building permits in Dunstable

75 permits on file across 3 months. Records through October 16, 2026, updated daily.

Last 90 days: 38 building, 14 electrical, 11 plumbing, 9 gas, 3 sheet metal.

Permits commonly pulled in Dunstable over the last twelve months: 38 building, 14 electrical, 11 plumbing, 9 gas and 3 sheet metal permits.

Most recent building permits filed in Dunstable, Massachusetts
FiledStreetType
Oct 16, 2026WESTFORD STBuilding
Oct 14, 2026FOREST STElectrical
Oct 12, 2026MAIN STBuilding
Oct 7, 2026ADAMS STBuilding
Oct 7, 2026GROTON STBuilding
Oct 5, 2026KEMP STPlumbing
Oct 5, 2026LOWELL STBuilding
Oct 5, 2026POND STElectrical
Oct 5, 2026KEMP STGas
Oct 5, 2026KEMP STElectrical
Oct 5, 2026MAIN STBuilding
Oct 4, 2026PLEASANT STPlumbing
Oct 4, 2026PLEASANT STGas
Oct 1, 2026POND STPlumbing
Oct 1, 2026UNKETY BROOK WAYGas
Sep 30, 2026OAK STBuilding
Sep 29, 2026GROTON STBuilding
Sep 25, 2026PLEASANT STBuilding
Sep 24, 2026HALL STBuilding
Sep 21, 2026CENTURY WYBuilding
Sep 21, 2026CHAPMAN STREETBuilding
Sep 21, 2026FOREST STPlumbing
Sep 21, 2026PLEASANT STElectrical
Sep 21, 2026BEAR HILL RDElectrical
Sep 20, 2026HOLLIS STBuilding
Sep 20, 2026MAIN STBuilding
Sep 15, 2026MAIN STBuilding
Sep 14, 2026RIVER STBuilding
Sep 14, 2026OAK STGas
Sep 14, 2026MAIN STPlumbing
Sep 14, 2026MASSAPOAG WYSheet Metal
Sep 14, 2026UNKETY BROOK WAYSheet Metal
Sep 14, 2026MASSAPOAG WYBuilding
Sep 14, 2026MAIN STBuilding
Sep 13, 2026THORNDIKE STBuilding
Sep 8, 2026PARKHURST RDBuilding
Sep 6, 2026GROTON STBuilding
Sep 6, 2026OAK STElectrical
Sep 6, 2026UNKETY BROOK WAYPlumbing
Sep 6, 2026UNKETY BROOK WAYGas
Sep 6, 2026PLEASANT STBuilding
Sep 6, 2026PARKHURST RDPlumbing
Aug 31, 2026ADAMS STGas
Aug 31, 2026ADAMS STElectrical
Aug 31, 2026GROTON STBuilding
Aug 31, 2026THORNDIKE STElectrical
Aug 31, 2026POND STBuilding
Aug 31, 2026VALLEY STPlumbing
Aug 27, 2026HOLLIS STBuilding
Aug 27, 2026PLEASANT STBuilding

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Monthly archive

Before you plan work in Dunstable

Dunstable's Inspections Department, at Town Hall, 511 Main Street, handles building, electrical, gas, plumbing and sheet metal permits through PermitLink, its online application and payment system, and asks that the inspector be contacted directly for an inspection once the work is finished. The department's page is written for homeowners: a licensed plumber or gas fitter must do and permit all plumbing and gas work, down to replacing faucets, boilers, water heaters and gas appliances; only a Massachusetts-licensed electrician may apply for an electrical permit, and the plumber replacing a water heater should not be wiring it; building permits cover new construction as well as new roofs, windows, siding, accessory structures and pools, and a homeowner may act as general contractor but takes responsibility for all the work; and wood and pellet stoves need a permit and an inspection before use. Every application must carry copies of the applicable licences, the Department of Industrial Accidents insurance affidavit and any certificates of insurance, and new construction should go to the Board of Health for septic and well approval. The page warns that work without a permit risks a stop-work order, double fees or a fine and possible insurance and assessment consequences, and that the project is not complete until the final inspection. Building Inspector Dana E. Barnes keeps hours Monday 2 to 4 p.m., the administrative office Monday to Thursday 9 to 4; Peter Martin is the Electrical Inspector and John Cryan the Gas and Plumbing Inspector.

Sources: Town of Dunstable — Inspections and Permitting.

Towns near Dunstable

Frequently asked questions

Do I need a permit to replace my furnace, boiler or AC in Dunstable?

Yes. A gas furnace, boiler or water heater is gas-fitting work, and Massachusetts issues gas permits only to a licensed plumber or gas fitter. Central AC and heat pumps need an electrical permit pulled by a licensed electrician, and Dunstable may require a mechanical permit for the equipment. The licensed contractor pulls these permits.

Read the full Massachusetts guide
Do I need a permit to install a heat pump or mini split in Massachusetts?

Yes. The state's guidance is that a ductless mini split is regulated equipment and needs a building permit, and the wiring needs an electrical permit from a licensed electrician. A ducted system adds a sheet metal permit for the ductwork. If you want the Mass Save rebate, the system must also be installed by a contractor in the Mass Save Heat Pump Installer Network.

Read the full Massachusetts guide
Do I need a permit to replace windows in Massachusetts?

Plan on it. Window and door replacement is not on the building code's list of permit-exempt work, and anything that changes a bedroom egress window or the size of an opening is never exempt. Whether a same-size swap counts as an ordinary repair is the local building department's call. On an owner-occupied one- to four-family home the contractor must be a registered Home Improvement Contractor and should pull the permit.

Read the full Massachusetts guide
Do I need a permit to replace siding in Massachusetts?

Plan on it. Residing a house is not among the projects the Massachusetts building code exempts from a permit, and the "ordinary repairs" exemption covers patching, not recladding. On an owner-occupied one- to four-family home the contractor must be a registered Home Improvement Contractor and should pull the permit; the local building department settles borderline cases.

Read the full Massachusetts guide
Do I need a permit to replace my roof in Dunstable?

Yes. Re-roofing is not exempt under the Massachusetts building code, so Dunstable will expect a building permit, pulled by a licensed construction supervisor. On an owner-occupied one- to four-family home the roofer must also hold Home Improvement Contractor registration.

Read the full Massachusetts guide
How long is a building permit good for in Massachusetts?

Under 780 CMR 105.5, a permit becomes invalid if the work has not started within 180 days of issue, or if the work is suspended or abandoned for 180 days once begun; the building official can extend it in writing for up to 180 days at a time on a written request made before it expires. An application that is filed but not pursued is treated as abandoned after 180 days, with extensions of up to 90 days at a time.

Read the full Massachusetts guide
Are building permits public record, and how do I look one up for an address in Dunstable?

Yes, permits are public records. Dunstable uses PermitLink, linked at the top of this page, where you can search by address. The recent filings table on this page shows the same public data with the street, date and permit type.

Read the full Massachusetts guide
Can a homeowner pull their own permit?

Sometimes, and it is usually a mistake. The state building code lets the owner-occupant of a one- or two-family home apply for a building permit for their own home, but never for electrical, plumbing or gas work, which only the licensee may do under their own permit. Mass.gov also warns that a homeowner who pulls the building permit may lose eligibility for the Guaranty Fund if a registered contractor's work goes wrong. Let the contractor pull it.

Read the full Massachusetts guide
What happens if work is done without a permit?

The town can order the work stopped, opened up for inspection, corrected, or removed, and unpermitted work surfaces at sale when a buyer's attorney searches the permit history. For electrical work the state's own advice is to hire a licensed electrician to review it, pull a permit for it, and bring it up to code. It is far cheaper to permit it the first time.

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Are you a contractor?

Homeowners in Dunstable ask this page for licensed heating, window, roofing and siding contractors. Get listed on masshomecomfort.com and receive those requests.

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Permit data for your business

Every Dunstable permit above, with the contractor name, valuation, house number and work description, delivered daily by permit type and niche.

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