Charlton, Massachusetts Building Permit Guide

Charlton’s Department of Building Inspectional Services, at 37 Main Street (508-248-2241), issues building, wiring, plumbing, gas and sheet metal permits, filed online through PermitEyes or on paper. Since July 1, 2026 most residential permits carry a flat fee that includes a set number of inspections: $3,000 for each new dwelling unit, $150 for a roof, siding or window job, and $100 for every extra inspection. Inspections need 48 hours’ notice and are not done on Friday afternoons.

What requires a building permit in Charlton?

Charlton is a Worcester County town of about 13,700 people. The department lists the work that needs a building permit:

What Charlton decides and what the state holds

The building code is 780 CMR, written by the state Board of Building Regulations and Standards, and Charlton cannot change it. The Town’s choices are its fees (voted by the Board of Selectmen on April 28, 2026), its Zoning Bylaw (Chapter 200), the Stretch Energy Code (Chapter 195, adopted at the October 16, 2016 Special Town Meeting) and, since the October 20, 2025 Special Town Meeting, a local historic districts bylaw (Chapter 147) creating three Northside historic district areas.

Charlton building department: who handles permitting

The Department of Building Inspectional Services includes the building, plumbing and gas, wiring and sheet metal inspectors. Curtis Meskus is the Building Commissioner and also the Zoning Enforcement Officer, and a local inspector, an assistant wiring inspector and office staff work with him.

Charlton permit types and the approvals that come first

Since December 1, 2021, building, wiring, gas and plumbing permits can be filed in PermitEyes. Contractors register once, attaching PDF copies of their license, insurance and Home Improvement Contractor registration, and update them on renewal. Incomplete applications cannot be submitted. Staff review the filing, route it electronically to every department that must sign off, and email the fee for payment; paper applications are still accepted, and staff collect the signatures for you. Each building or structure on a property, and each contractor or subcontractor, needs its own application and fee.

Residential permits

One- and two-family work uses one of two forms: the accessory permit (fences, retaining walls, pools, roofing, siding, replacement windows, sheds and solid-fuel stoves) or the additions, remodeling and new dwelling permit (additions, interior remodeling, decks and porches, garages, screen rooms, sunrooms and new homes). Drawings are preferred at a quarter inch to the foot, with a window and door schedule and truss drawings. New homes add a well quantity report, approved septic plans or a site plan showing the zoning setback lines, and a HERS rating; additions and renovations need energy code compliance. A new driveway needs its driveway permit, and work within 100 feet of a wetland or 200 feet of a river needs a recorded Order of Conditions.

Under the department’s February 2025 guidance, one accessory dwelling unit is allowed on any lot where single-family homes are allowed: attached up to 1,250 gross square feet, or detached up to 900 gross square feet or half the main house, whichever is smaller. The owner need not live on site, but neither unit may be a short-term rental.

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

Commercial permits

Commercial work, and residential buildings with more than six dwelling units, is charged a $300 minimum and $8 per $1,000 of construction cost. The cost includes all building components, including elevators, kitchen hoods, HVAC, fire protection and alarm systems, all electrical and plumbing work, casework, finishes and racking, but not soft costs, utility construction, site work or taxable furnishings. The Commissioner may require a deposit for outside consultants under the Town’s consulting fee rule; any unused balance, with interest, is returned at the end of the review, and the choice of consultant can be appealed in writing to the Board of Selectmen within seven days of the notice.

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

• Board of Health: Title 5 septic and drinking-water well compliance.
• Conservation Commission: work within 100 feet of a wetland, 200 feet of a perennial river or stream, or in a flood zone; the applicant notifies abutters within 100 feet by certified mail.
• Planning Board: site plan approval and a notice to proceed where required.
• Highway: driveway permits and house numbers.
• Water and Sewer: hook-up authorization.
• Historical Commission: a certificate of appropriateness where the sign-off policy calls for one, and a certificate from the new Historic District Commission for work in the Northside districts.
• Treasurer-Collector: confirms that fees and taxes are current.

Charlton permit fees

The current schedule was voted by the Board of Selectmen on April 28, 2026, published May 7, 2026 and took effect July 1, 2026. Each fee includes up to the number of inspections shown; any extra inspection is $100, an inspection means up to one hour including travel, and nothing is refunded for unused inspections. Starting work without a permit doubles the fee.

Example: a three-family house is 3 × $3,000 = $9,000, the department’s own worked example, and a new roof plus new siding on one house is $150 + $75 = $225. Decks are always a separate permit, even when built with an addition or an above-ground pool. The schedule’s residential solar and storage line shows a $300 minimum with a rate printed only as “8 per 100”, and a third additions line ($500 plus $0.25 per square foot) is printed with a “<1000” size, so ask the department how those two lines apply to your job.

Other charges on the schedule: plan review beyond two rounds is $100 each; plan amendments on anything other than a one- or two-family project are $100 plus $8 per $1,000; signs are $75 for the first and $25 for each additional; commercial mechanical and sheet metal work is $250; and cell tower replacement arrays are $400. Work done directly for the Town is the only exemption from fees.

Trade permits and who may pull them

Licensed electricians, plumbers and gas fitters file their own permits, and each sub-trade is separate: plumbing apart from gas, and control, security, data and fire alarm wiring apart from power wiring. Trade fees do not depend on the value of the trade work, which is counted in the building permit; instead each inspection, plan review, meeting or emergency call-out is a $100 event.

For building work, contractors register their Construction Supervisor License, insurance and HIC registration in PermitEyes before their first application.

How to apply for a Charlton building permit

Review, corrections and what causes delay

Staff send the application to each sign-off department electronically and contact you through PermitEyes chat about missing items. The state code allows the building official 30 days from filing to grant or deny a complete application (780 CMR 105.3.1). Conservation filings need a newspaper notice at least five days before the hearing, and the historic district certificate adds a Historic District Commission step. Fee disputes are appealed under Select Board Policy #31.

Inspections in Charlton

Inspections are scheduled first called, first listed, with 48 hours’ notice, between 9 am and noon and 1 and 4:30 pm; the route decides the order, and nothing is inspected on Friday afternoons, weekends or holidays. The house number must be visible from the street or posted at the driveway, and the site must be safe and accessible, or the inspector will not proceed.

The Town’s inspection schedule sets the minimum stages: foundations, frost walls and sonotubes before pouring where rebar or special bolts are used, and again after damp-proofing and footing drains are in; sheathing, framing and flashing before siding or house wrap; and the rough and final stages that follow. Footings on ledge must have rebar dowels drilled into the rock. The schedule still cites the 9th edition of the code, which the 10th edition has replaced.

Building code and local bylaws in Charlton

Charlton enforces 780 CMR, 10th edition, and the Stretch Energy Code under Chapter 195 of its bylaws, which incorporates future editions and is enforced by the Inspector of Buildings or Building Commissioner. Chapter 147, adopted at the October 20, 2025 Special Town Meeting under the state Historic Districts Act, creates the Northside Historic District in three areas (Central, East and South) and bars construction or alteration there without a certificate from the Historic District Commission. Retaining walls with 10 feet of surcharge need engineering. FEMA lists Charlton as a participating community in the National Flood Insurance Program, with flood maps effective June 21, 2023.

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

Charlton permit search and official resources

Applicants can check the status of all their applications and inspections under their PermitEyes login. For other permit records, contact the department at 508-248-2241 or use the Town’s public records request form.

• Charlton Building Inspectional Services
• Permits for building and information
• PermitEyes login
• Fee schedule effective July 1, 2026
• Fee calculation guidance (July 2026)
• Permit processing policy
• Permit sign-off policy
• Schedule of inspections
• Accessory permit for one- and two-family homes
• Additions, remodeling and new dwelling permit
• Accessory dwelling unit guidance (February 2025)
• Consulting fee policy
• Charlton bylaws, including Zoning (Ch. 200), Historic Districts (Ch. 147) and Stretch Energy Code (Ch. 195)
• Conservation Commission
• Board of Health
• Public records request
• Massachusetts State Building Code (780 CMR)
• FEMA Community Status Book, Massachusetts

Charlton building permit FAQ

Who issues building permits in Charlton, MA?

The Department of Building Inspectional Services at 37 Main Street (508-248-2241). Curtis Meskus is the Building Commissioner.

How much does a building permit for a new house cost?

$3,000 per dwelling unit, including seven inspections, under the schedule effective July 1, 2026; wiring and plumbing are separate.

Do I need a permit for a shed?

Yes, sheds of all sizes. One under 200 square feet goes through a $50 zoning review; one of 201 to 400 square feet is a $200 permit.

Do I need a permit to replace windows?

Yes. New and replacement windows need a permit, $150, or $75 when added to another item such as roofing or siding.

How do I schedule an inspection?

Call with 48 hours’ notice: building 508-248-2241, electrical 508-248-2235, plumbing and gas 508-248-2213. There are no Friday afternoon inspections.

Can I build an accessory apartment?

One ADU per lot: up to 1,250 gross square feet attached, or up to 900 square feet (or half the house) detached, with no owner-occupancy rule but no short-term rental.

Is my house in a historic district?

Only if it is in one of the three Northside Historic District areas created in October 2025; work there needs a Historic District Commission certificate.

Can I still apply on paper?

Yes. Paper applications are accepted, and staff gather the department sign-offs for you.

Simplify Charlton 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 Charlton permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.