What You Need for a Building Permit in Newton, MA (2026)

Newton Building Permit Checklist

What Newton asks for on a new home, addition or major renovation, from the Newton permit pages. Bring all of it the first time and the review moves faster.

Online permit application through NewGov
Fire Department plan review: every residential and commercial building permit is reviewed by Newton Fire, with floor plans showing smoke and CO detectors (and sprinklers if required)
Site plan that meets the residential facade build-out ratio (Zoning Ordinance Sec. 1.5.7, effective March 1, 2026); ISD won't accept site plans that don't comply
Construction plans, cost information and energy code documentation for the project

Construction plan set prepared for a building permit application - building permit energy code requirements in Newton, MA

Who Can Apply and How

Applications are filed online through NewGov. Confirm license and homeowner-permit rules with ISD.

Apply through NewGov (ViewPoint Cloud / OpenGov). Questions go to the Inspectional Services Department (ISD) at (617) 796-1060.

Energy Code Compliance: The Part That Holds Up Most Permits

Newton's Specialized Energy Code applies to complete applications received after January 1, 2024.

At permit: New homes and large additions need a projected HERS rating report. Newton's Fossil Fuel-Free Ordinance (January 1, 2025) requires new construction and major renovations to be all-electric, and from January 1, 2026 additions and renovations over 1,000 sq ft must be fully electric with no gas cooking.

At final: Newton's residential Final Inspection Checklist (revised January 1, 2026) requires a Final HERS Rating, and the city notes mandatory duct leakage testing.

Project	Energy document
New home	Projected HERS report (HERS 42 mixed-fuel / 45 all-electric)
ADU	Projected HERS report (HERS 52 / 55)
Addition over 1,000 sq ft or over 100% of the home	Projected HERS report (HERS 65 / 70)
Smaller addition or alteration	REScheck or the prescriptive path, if the inspector accepts it
Commercial up to 20,000 sq ft	COMcheck plus a whole-building blower door test

Home Energy Efficiency Consultants prepares the projected HERS report from your plans, usually in about one business day after the quote is accepted, then does the pre-drywall inspection, blower door and duct leakage tests and the confirmed HERS certificate. See our stretch code report for Newton permits page for what's in the report, EV-ready and solar-ready rules, and when Phius applies.

Sample projected HERS rating certificate for a building permit - building permit energy code requirements in Newton, MA

Examples of additions and renovations that trigger a HERS rating - building permit energy code requirements in Newton, MA

Other Approvals You May Need in Newton

Fire Department review on all permits
Engineering, Health and all trade inspectors on the permit card, with Building signing last
Planning (special permit), Conservation, Historical Commission and Tree Warden where applicable
Newton Historical Commission demolition review for buildings over 50 years old (including partial demolition of 50% of an elevation or roof)
Historic District Commission for exterior changes in Auburndale, Chestnut Hill, Newton Upper Falls and Newtonville

Permit Fees and Timing

Fees: $20 per $1,000 of estimated cost, rounded up, minimum $50 (fee document updated January 1, 2026). Always check the current schedule before you apply.

Final Inspection and Certificate of Occupancy

Permit card signed by all trades, Engineering, Fire and Health, then Building. Final construction control, contractor and insulation affidavits, final cost affidavit, final as-built plan, FAR and half-story as-built calculations, and the Final HERS Rating.

For new homes and large additions, the confirmed HERS rating (with passing blower door and duct leakage results) is part of the close-out paperwork. Book the final test before the building inspector's final so the paperwork is ready.

Local rules to know:

Fossil Fuel-Free Ordinance in effect since January 1, 2025
Residential facade build-out ratio in effect since March 1, 2026

Building Permit FAQ for Newton

What do you need for a building permit in Newton, MA?

For a new home or addition: the online application, scaled construction plans, a certified plot plan by a land surveyor, contractor CSL/HIC, insurance and workers' comp paperwork (or a homeowner exemption), any zoning or historic approvals, and energy code compliance documentation. New homes and large additions need a projected HERS rating report.

Do I need a HERS rating for a building permit in Newton?

For a new home, yes, and also for additions over 1,000 sq ft or more than 100% of the existing home. The rater models your plans for the permit (projected HERS report), then tests the finished house (blower door and duct leakage) for the confirmed HERS rating. Smaller additions and alterations can usually use REScheck or the prescriptive path.

What energy code does Newton follow?

Newton's Specialized Energy Code applies to complete applications received after January 1, 2024.

Where do I apply for a building permit in Newton?

At the Inspectional Services Department (ISD), 1000 Commonwealth Avenue, Newton, MA 02459 ((617) 796-1060), through NewGov (ViewPoint Cloud / OpenGov).