Wellesley, Massachusetts Building Permit Guide

Wellesley’s Building Department, at 888 Worcester Street, issues building, electrical, plumbing and gas and sheet metal permits and takes applications through the Town’s OpenGov portal. Since April 1, 2025 most permits cost $15 per $1,000 of estimated construction cost, with new homes and additions valued at $200 per square foot of finished space, and review of a new-construction application generally takes 10 to 14 days.

What requires a building permit in Wellesley?

The department’s own answer is that all work regulated by the State Building Code needs a permit, and that with very few exceptions most building, gas, plumbing and electrical work does; when in doubt, it asks people to contact the office first. Its 2025 fee schedule shows how wide that net is in this town of about 31,200 residents (Census estimate, 2025):

What Wellesley decides and what the state holds

780 CMR is the Commonwealth’s code, written by the Board of Building Regulations and Standards, and Wellesley cannot amend it. Wellesley controls the fee schedule (set by the Select Board), the Zoning Bylaw including the Tree Bylaw (Section 16E) and the historic districts section, the Town Bylaws on wetlands (Article 44) and on demolition review (Article 46C), and the energy code choice. The Town adopted the Stretch Energy Code in 2011, and its Bylaws, as amended through the 2026 Annual Town Meeting, still direct the Inspector of Buildings to enforce the Stretch code.

Wellesley building department: who handles permitting

The Building Department enforces the state building, plumbing and electrical laws and the Town and Zoning Bylaws. Beyond permits and construction inspections, it carries out zoning enforcement, public safety inspections of commercial and municipal buildings and places of assembly, and enforcement of the handicap access laws. Michael T. Grant is the Inspector of Buildings, and the office also has three local building inspectors, a wiring inspector, a plumbing and gas inspector and a permit administrator.

The department is not at Town Hall (525 Washington Street), so go to 888 Worcester Street for permit questions; the Planning Department, which staffs the Historic District Commission, uses the same Suite 160 address. Fee questions go to extension 2228.

Wellesley permit types and the approvals that come first

Applications are filed in the OpenGov portal. The department asks applicants to talk with the Inspector of Buildings and Zoning Enforcement Officer before submitting anything, so the project follows the zoning and other rules that apply, and its Permit Guide groups those rules into building codes, commercial projects, natural resource protection, neighborhood preservation and special projects. Contractors and their designees must register with the Town before working in Wellesley, presenting the licenses they are registering.

Residential permits

The owner of the property signs the building permit application, while the Construction Supervisor License holder and, where it applies, the Home Improvement Contractor registration holder sign the other permit documents. A homeowner who lives at the property, or intends to, may take out the permit and is then treated as the contractor under the State Building Code. The department publishes a residential building permit checklist, a Residential Energy Code Worksheet and a Stretch Energy Code Compliance Form. Plans must be stamped by the Fire Department when the work is a new dwelling or adds a bedroom.

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Commercial permits

Commercial and non-profit work uses the same $15 per $1,000 rate with higher minimums ($300 for a new building, addition or alteration), and a commercial building permit checklist and guidance on commercial sheet metal permits. Commercial plans also need the Fire Department’s stamp. The department inspects places of public assembly and other commercial and municipal buildings for public safety.

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

Demolishing an older house

Article 46C of the Town Bylaws covers any building that needs a demolition permit, was built wholly or partly on or before December 31, 1949, and is or was a dwelling at any time in the three years before the application; Town-owned buildings and school dormitories are excluded. Once the Historical Commission confirms the building is eligible, the owner supplies photographs of every facade (and, for a partial demolition, plans for the site and any zoning relief needed). The commission then holds a public hearing within 45 days; if it decides the house should be preferably preserved, no demolition permit issues for 12 months. An owner can ask for a shorter delay at a waiver hearing, held within 45 days of the request, by showing a genuine but unsuccessful effort to find a buyer who would preserve the house, or by accepting conditions the commission approves.

Solar installers follow the Town’s Solar Permit Checklist for both residential and commercial systems, and the same page links the Massachusetts Clean Energy Center’s residential solar guide.

What comes before the building permit

• Zoning: the Inspector of Buildings is also the Zoning Enforcement Officer; relief from the Zoning Bylaw goes to the Zoning Board of Appeals.
• Wetlands: the Wetlands Protection Committee administers the state Wetlands Protection Act and the Town’s wetlands bylaw, which carries its own filing fee on top of the state fee.
• Trees: the Tree Bylaw (Zoning Section 16E) protects sizeable trees on private property during significant demolition and development, with replanting or financial contributions toward the Town’s tree planting where trees come down.
• Historic districts: the Historic District Commission reviews changes to exterior architectural features for the 65 properties in the Cottage Street Historic District and five single-building historic districts; the Planning Department staffs it (781-431-1019, ext. 2232).
• Demolition review: dwellings built wholly or partly on or before December 31, 1949 fall under Article 46C.
• DPW Engineering: a street occupancy permit for any excavation in the public way, including driveway aprons, a trench excavation permit, and erosion and sediment controls on site.

Wellesley building permit fees

The Select Board approved new Building Department fees at its January 21, 2025 meeting after a public hearing, effective April 1, 2025, for building, electrical, plumbing and gas, and sheet metal permits. Residential building work went from $10 to $15 per $1,000, and the value used for new homes and additions went from $150 to $200 per square foot of finished space. The Town’s notice said fees for commercial building permits would not change at that time.

For example, a 500-square-foot finished addition is valued at 500 × $200 = $100,000, so its building permit is $1,500. Estimated cost is assessed to the nearest $1,000, the department may question the estimate, and any work started without the permit triples the regular fee. The schedule also carries smaller items: a home occupation permit is $50 and is renewed every year, and advertising for new structures is $25.

Trade permits and who may pull them

Plumbing and gas fitting permits are issued only to licensed individuals, by the Plumbing & Gas Inspector, under the state plumbing code; electrical permits are issued by the Electrical Inspector under the Massachusetts Electrical Code; and sheet metal permits by the building inspectors, with separate guidance for residential and commercial sheet metal jobs. Each trade has its own fee schedule effective April 1, 2025 (electrical; plumbing and gas; sheet metal), posted on the department’s fee page. Electrical inspections are booked by phone at extension 2222, while plumbing and gas inspections are requested by email to the inspector, as the department’s page directs.

How to apply for a Wellesley building permit

Review, corrections and what causes delay

780 CMR 105.3.1 requires a written decision within 30 days of the application. Wellesley says new-construction review generally takes 10 to 14 days and other projects may be quicker. Files slow down when the Fire Department stamp is missing, an estimate below $200 per square foot is questioned, a contractor has not registered with the Town, or a tree, wetlands or demolition review is still open. Because the department reserves the right to question the estimated construction cost, a signed contract or a cost breakdown that matches the square-foot values avoids a round of questions.

Inspections in Wellesley

Building and sheet metal inspections are requested only by email to bldinspections@wellesleyma.gov, with the address, permit number, inspection type, a morning or afternoon preference and a contact number; phone requests and requests sent through the portal are not honored. Inspections run in windows of 10 am to noon and 2 to 3:30 pm, and the inspector replies with the date and window.

The required sequence is excavation (unless a registered design professional submits a certified soil evaluation), foundation and as-built before backfill and framing, exterior air barrier, rough plumbing, sheet metal and electrical, rough framing with interior air sealing and fire and draft stopping, insulation, the trade finals and the final building inspection. The applicant of record must attend from the air barrier inspection onward. A new building needs a height certificate, Fire Department approvals and 24 hours’ notice before the certificate of occupancy ($50 residential), and a repeat inspection costs $35.

Energy code compliance is checked over several of these visits rather than at one stop. Where the project uses the blower door test option, the separate exterior and interior air barrier inspections do not apply. The DPW’s street occupancy permit is required for any excavation in the public way, including resurfacing or rebuilding a driveway apron.

Building and energy code in Wellesley

Wellesley enforces the 10th edition of 780 CMR together with the Stretch Energy Code, which the Inspector of Buildings enforces under the Town Bylaws. Demolition of pre-1950 dwellings is governed by Article 46C, described above. FEMA’s Community Status Book lists Wellesley as a participating National Flood Insurance Program community, with flood maps effective July 8, 2025.

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

Wellesley permit search and official resources

Use “Search Permits by Property” in the OpenGov portal to see permits at an address, and the department’s Report of Permits Issued for published lists. Older files can be requested from the Building Department as public records.

• Wellesley Building Department
• Wellesley OpenGov permits and licensing portal
• Wellesley search permits by property
• Wellesley Building Department fee schedule page
• Wellesley 2025 building permit fees
• Wellesley codes, forms and checklists
• Wellesley inspection protocol
• Wellesley list of required inspections
• Wellesley Town Bylaws as of 2026 Annual Town Meeting
• Wellesley Tree Bylaw information
• Massachusetts energy code adoption by municipality
• Massachusetts State Building Code (780 CMR)

Wellesley building permit FAQ

Where is the Wellesley Building Department?

At 888 Worcester Street, Suite 160, not at Town Hall. Phone 781-431-1019; applications go through the OpenGov portal.

How much is a building permit in Wellesley, MA?

Since April 1, 2025, $15 per $1,000 of estimated cost for most building work, with a $100 residential minimum and $300 commercial minimum. New homes and additions are valued at $200 per square foot of finished space.

How long does plan review take?

Generally 10 to 14 days for new construction, and often less for other projects.

How do I schedule a building inspection?

By email only, to bldinspections@wellesleyma.gov, with the permit number and inspection type; phone and portal requests are not accepted for building and sheet metal inspections.

Can a homeowner get a building permit in Wellesley?

Yes, if they live at the property or intend to; the homeowner then acts as the contractor under the State Building Code.

Which energy code applies in Wellesley?

The Stretch Energy Code, adopted in 2011 and still named in the Town Bylaws as amended through the 2026 Annual Town Meeting.

Do I need a permit for a fence in Wellesley?

Fences over 6 feet high are on the Building Department’s fee schedule, at $50 a permit.

Is there a demolition delay in Wellesley?

Yes. Houses and other dwellings built on or before December 31, 1949 go through Historical Commission review, and one found preferably preserved can be held for 12 months unless a waiver shortens it.

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