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

Natick Building Permit Checklist

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

Residential Long Permit Application (new construction or addition), all sections complete, including the conservation questions
Workers' Compensation Insurance Affidavit
Energy Conservation Application (energy code documentation)
Solid Waste (Debris) Affidavit and Affidavit for Estimated Cost of Construction
Certified plot plan if applicable
Plans: one stamped and signed set plus a digital set (new homes need an architect or engineer stamp)
Building Evaluation Review for renovations, additions or change of use, and the town Zoning Chart

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

Who Can Apply and How

Contractors list their CSL and/or HIC on the application. A homeowner doing all the work can check the homeowner option on the workers' comp affidavit.

Apply through OpenGov / ViewPoint Cloud (paper applications not accepted since May 2022). Questions go to the Building Department (Community & Economic Development) at (508) 647-6450.

Energy Code Compliance: The Part That Holds Up Most Permits

Natick is on the state's Specialized Code list, and its General Bylaw Article 72B adopts the Specialized Energy Code.

At permit: New homes and large additions need a projected HERS rating report. Natick's posted energy form still shows old HERS targets, so we confirm the current path with the Building Department.

At final: At final we run the blower door and duct leakage tests and issue the confirmed HERS certificate.

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 permitting 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 Natick, MA

Massachusetts Stretch Code compliance path flowchart for new homes, additions and alterations - building permit energy code requirements in Natick, MA

Other Approvals You May Need in Natick

Board of Health, DPW and Fire Department reviews for new dwellings and additions
Conservation Commission if the project is near wetlands, a river or in the Aquifer Protection District
DPW street opening (Natick-licensed contractor)
ZBA for special permits and variances; optional Development Review Team meeting

Permit Fees and Timing

Fees: $20 per $1,000, minimum $55. CO $150 (fee schedule effective January 23, 2026). Always check the current schedule before you apply.

Final Inspection and Certificate of Occupancy

Final Cost of Construction document and the $150 certificate of occupancy fee.

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:

Construction hours: Mon-Fri 7:00 AM-7:30 PM, Sat-Sun 8:00 AM-6:00 PM

Building Permit FAQ for Natick

What do you need for a building permit in Natick, 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 Natick?

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 Natick follow?

Natick is on the state's Specialized Code list, and its General Bylaw Article 72B adopts the Specialized Energy Code.

Where do I apply for a building permit in Natick?

At the Building Department (Community & Economic Development), 13 East Central Street, Town Hall 2nd Floor, Natick, MA 01760 ((508) 647-6450), through OpenGov / ViewPoint Cloud (paper applications not accepted since May 2022).

Who can pull a building permit in Natick?

Contractors list their CSL and/or HIC on the application. A homeowner doing all the work can check the homeowner option on the workers' comp affidavit.