Belmont, Massachusetts Building Permit Guide

In Belmont, building permits are issued by the Building Division of the Office of Planning & Building, 19 Moore Street, 2nd floor (617-993-2664), where the Inspector of Buildings enforces the State Building Code and the Town’s zoning bylaw. Kitchens and bathrooms without structural changes, insulation, roofing, siding, windows and the trade permits can be filed online; additions, decks, dormers, interior renovations and any structural work must be filed on paper in person. Under the fee schedule approved on August 31, 2026, residential additions and alterations cost $15 per $1,000 of estimated construction cost and new homes $18 per $1,000.

The Town warns of a phishing scheme in which fake invoices for pending permits are emailed to applicants: genuine messages from Town staff come only from a @belmont-ma.gov address.

What work requires a building permit in Belmont?

The Planning & Building office puts it simply: any building work beyond an ordinary repair needs a building permit, and the State Building Code governs it. Belmont’s own pages then add local triggers that catch homeowners out. A shed under 150 sq ft needs no building permit but still needs a certified plot plan showing where it sits; a shed over 150 sq ft needs both a permit and the plot plan. Work using heavy equipment (in the Town’s words, anything more than a shovel), or digging more than 3 feet below grade, also needs a Street Opening Permit from Engineering.

Siding jobs that require removing the electric meter need an electrical permit as well, a point the Building Division makes on its own page.

What Belmont decides and what the state holds

780 CMR, issued by the Board of Building Regulations and Standards, sets the construction rules, and Belmont cannot amend it. Town Meeting decides the local layer. Section 60-310 of the General Bylaws, amended by the November 6, 2023 Special Town Meeting, replaced the Stretch code with the Municipal Opt-in Specialized Energy Code for residential and commercial buildings, enforced by the Inspector of Buildings and effective January 1, 2025. Other bylaws set the demolition delay (section 60-320) and the stormwater and erosion rules (section 60-325), and the zoning bylaw, the Historic District Commission and the fee schedule complete the Town’s part.

Belmont building department: who handles permitting

The Office of Planning & Building, led by Director of Planning & Building Christopher Ryan, has a Building Division, an Electrical Division, a Plumbing & Gas Division and a Code Enforcement Division. The Inspector of Buildings enforces and interprets the code, and the Planning Division staffs the Planning Board, Zoning Board of Appeals and Historic District Commission from the same office.

Belmont permit types and application documents

The online portal was recently upgraded, and every user, owner or contractor, must register again. Only owners of an owner-occupied one- or two-family home and licensed contractors who have registered may use it; contractor registration needs the license, the state “S” license for electrical contractors doing security work, and a liability insurance certificate, and it then works in other towns on the same platform, including Billerica. Drafts are kept for 90 days and email notices go out at each step. Every online building application needs the Debris Form, the workers’ compensation affidavit and the signed project contract. Paper applications are paid by cash or check (check preferred); credit cards are not taken at the counter.

Residential permits

For one- and two-family work, the paper packet asks for the property address, owner details, a description and cost of work, contractor license information and the owner’s or agent’s signature. A Homeowner License Exemption Form is needed when the owner pulls the permit or the contractor holds no Construction Supervisor License. New buildings, accessory buildings and additions need a certified plot plan stamped by a Massachusetts registered land surveyor, drawn to the Town’s plot plan regulations and showing existing and proposed open space and lot coverage. Plans come in one copy, two if a bedroom is added, with a PDF for any set larger than 11 by 17 inches; foundations must show footings at least 4 feet deep. Interior renovations without structural work need no plans, and code compliance is checked at inspection.

Building or remodeling a home here? Alliance handles residential permit filing, so the crew isn't waiting on the counter.

Commercial permits

Commercial work uses its own packet. Buildings over 35,000 cubic feet need plans stamped by a registered engineer or architect. The Fire Prevention Office reviews fire protection plans for additions and major renovations, and the Board of Health must approve any food service establishment. Commercial projects fall under the stormwater management and erosion control bylaw, which also covers new homes and substantial renovation of one- to three-family houses; the permit application comes from the Engineering Division.

For tenant improvements and new commercial builds, Alliance handles commercial permit expediting through issuance. More on this: commercial building permits explained.

What comes before the building permit

• Zoning: work that does not meet the zoning bylaw needs a special permit or variance from the Zoning Board of Appeals; larger projects go to the Planning Board for special permits or design and site plan review. A zoning certification letter costs $150, or $300 if research is needed.
• Wetlands: the Conservation Commission must approve construction in areas under the Wetlands Protection Act or Rivers Protection Act; wetland maps are kept at the office.
• Historic district: any exterior work in a local historic district needs a certificate of appropriateness ($100) from the Historic District Commission.
• Demolition delay: only buildings on the Historic District Commission’s list of significant buildings, filed with the Town Clerk in 2017 and amended in 2018, are covered, and no buildings may be added to it. Routine maintenance, interior renovation, and replacing porches, roofing, siding, railings or windows are excluded.
• Scenic road: new or wider driveway openings in stone walls, or tree work, along Somerset Street need Planning Board approval.
• Septic and dumpsters: the Board of Health (617-993-2720) issues dumpster permits and administers Title 5 for any lot not on sewer.

Belmont permit costs and fees

A new Office of Planning and Building fee schedule was approved on August 31, 2026. The Building Division’s forms page still quotes the old flat rule of $15 per $1,000 with a $50 minimum (rounded up to the nearest thousand), so budget from the approved schedule below.

Public Housing Authority projects can receive a 35% reduction on any applicable permit.

Trade permits and who may pull them

Sheet metal, electrical, plumbing and gas permits can all be filed online with a workers’ compensation affidavit, and Belmont’s own electrical and plumbing and gas inspectors review and inspect the work. Licensed tradespeople register on the portal before filing.

The electrical inspector takes calls from 7:30 to 8:30 a.m. on weekdays and inspects from 8:30 to 11:30 a.m.; the plumbing and gas inspector keeps the same hours Monday to Thursday. Call each inspector during those hours to book.

How to apply for a Belmont building permit

Review, corrections and what causes delay

The Building Division has 30 days to review each application under 780 CMR 105.3.1. Its forms page is direct about what slows a file: the completeness and accuracy of the plans bear on review time, unpaid taxes owed by the owner or the contractor hold up the permit, and an online application left unpaid delays approval. Changes after filing need an Application for Revision of Building Permit. A permit left 180 days with no action is treated as abandoned.

Belmont inspections and final approval

Building and sheet metal inspections are booked by calling 617-993-2663 the day before, leaving the address and unit, permit number, inspection type and a phone number; calls up to 7:30 a.m. count for that day. The Building Inspections page says inspections run Monday to Thursday from 10 a.m., with none on Fridays or holidays, while the forms page lists Monday, Tuesday and Thursday; no exact time or confirmation call is given. The minimum sequence is excavation (before footings or forms), foundation (before backfill), framing (after all rough trade inspections pass), insulation and final.

The final comes after the plumbing, gas, electrical and fire alarm inspectors sign off and before anyone occupies the building. A certificate of occupancy costs $75 for a one- or two-family home, and re-inspections cost $30 once two inspections have been used.

Massachusetts building code

Massachusetts has one State Building Code, 780 CMR, for every city and town; towns cannot rewrite it, though many opt into a stricter energy code. The trades run under their own state codes. Massachusetts rules

Belmont building permit FAQ

Who issues building permits in Belmont?

The Building Division of the Office of Planning & Building at 19 Moore Street, 2nd floor. The Inspector of Buildings enforces the code; the office also issues electrical, plumbing and gas permits.

Can I apply for my Belmont permit online?

Only for non-structural kitchens and baths, insulation, roofing, siding, windows and trade permits. Additions, decks, dormers, interior renovations and structural work are filed on paper in person.

How much is a building permit in Belmont?

The August 31, 2026 schedule lists a $100 building permit application fee and charges $15 per $1,000 of cost for residential additions and alterations, $18 per $1,000 for new homes and $22 per $1,000 for commercial work.

Do I need a permit for a shed?

Over 150 sq ft, yes, with a certified plot plan. Smaller sheds need only the certified plot plan showing their location.

Can I tear down an older house?

If it is on the Town’s list of significant buildings, the Historic District Commission holds a hearing within 35 days, and a building it finds preferably preserved cannot get a demolition permit until 12 months after the application was filed, unless the Commission allows a shorter time.

Which energy code applies in Belmont?

The Specialized Energy Code, adopted in section 60-310 of the General Bylaws and effective January 1, 2025, for residential and commercial buildings.

How do I see a property’s permit history?

The online portal does not show it. Visit the Office of Planning & Building in person to check inspection records and permit history.

Belmont permit search and official resources

Belmont’s online portal shows each user only their own permits, so a property’s permit and inspection history is checked in person at 19 Moore Street. The Building Division also posts monthly permit reports. FEMA’s Community Status Book lists Belmont (community 250182) as participating in the National Flood Insurance Program, with flood maps effective July 8, 2025.

• Belmont Office of Planning & Building
• Belmont Building Division
• Belmont online permitting instructions
• Belmont Online Permitting Portal
• Application forms for building permits
• Belmont building inspections
• Office of Planning and Building fee schedule, approved August 31, 2026
• Monthly permit reports
• General Bylaws chapter 60: Specialized Energy Code and demolition delay
• FEMA Community Status Book, Massachusetts
• Massachusetts State Building Code, 780 CMR

Simplify Belmont permitting with Alliance Permitting

Alliance Permitting is a permit documentation and submission company in Massachusetts. We prepare your paperwork, file it correctly and coordinate with the permitting authority through issuance. We are not a contractor and we do not perform licensed plan review or inspections; that work stays with your licensed team and the jurisdiction.

This guide is provided by Alliance Permitting for general information about Belmont permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.