RESNET-certified HERS Ratings for new construction, renovations, Mass Save programs, and MA Stretch Code compliance in Holden, MA.
Holden is one of only 49 Massachusetts municipalities still on the Base Energy Code (10th Edition — IECC 2021 with MA amendments) as of the June 2026 Mass.gov adoption list — the Stretch Code does not apply here. HERS ratings remain an approved compliance path under the Base Code, and a RESNET-certified HERS rater is required to qualify for Mass Save® new-construction incentives.
Related Holden services: Blower Door Testing Holden · Duct Leakage Testing Holden · Stretch Code Compliance Holden · MA Energy Codes Guide — or get a free quote from our RESNET-certified team (617-584-1809).
Sources: 2025 DOER Massachusetts Stretch & Specialized Codes Technical Guidance (Sept 2025); Mass.gov Building Energy Code Adoption by Municipality (June 2026); Mass Save 2026 Residential New Construction program.

Not by local code — Holden is one of just 49 Massachusetts municipalities still on the Base Energy Code (10th Edition, IECC 2021 with MA amendments), so the Stretch Code HERS mandate does not apply. A HERS rating is still an accepted compliance path and is required for Mass Save® new-construction incentives.
There is no mandatory HERS maximum under the Base Code in Holden, but the ERI compliance path follows IECC 2021 limits, and Mass Save incentive tiers require HERS 45 or better for the ENERGY STAR® tier.
Holden follows the Massachusetts Base Energy Code (10th Edition, IECC 2021 with amendments) as of the June 2026 Mass.gov adoption list — one of only 49 communities statewide that have not adopted the Stretch Code.
For comparison, here is the official maximum-HERS table that applies in Massachusetts Stretch Code and Specialized Code communities (Table R406.5, 2025 DOER Technical Guidance):
| Building type | New construction (permits after 7/1/2024) | New construction w/ embodied-carbon credit (R406.5.2) | Accessory Dwelling Units | Major alterations, additions, change of use |
|---|---|---|---|---|
| Mixed-fuel building | 42 | 45 | 52 | 65 |
| Mixed-fuel + solar electric | 42 | 45 | 55 | 70 |
| All-electric building | 45 | 48 | 55 | 70 |
| All-electric + solar electric | 45 | 48 | 58 | 75 |
Scores are measured before counting on-site renewable generation (per R406.5). Historic buildings may opt out for alterations under R503.1.1. Embodied-carbon credits (+3 points) come from low-GWP concrete and insulation EPDs per Table R406.5.3/R406.5.4.
As one of only 49 Base Code communities, Holden projects follow the 10th Edition code (IECC 2021 with MA amendments) via the prescriptive path, the simulated-performance path, or the Energy Rating Index (HERS) path — without the Stretch Code’s lowered HERS caps shown above. Builders in Holden still order HERS ratings for the ERI compliance path, for Mass Save® incentives (which always require HERS verification), and to document energy performance for buyers. If Holden adopts the Stretch Code at a future town meeting, the table above becomes mandatory — surrounding towns already enforce it, so Holden builders often test to those standards today.
Detail sourced from the 2025 Massachusetts Stretch & Specialized Codes Technical Guidance (DOER, Sept 2025), Table R406.5 and Appendix RC.
RESNET-certified HERS Ratings for new construction, renovations, Mass Save programs, and MA Stretch Code compliance in Holden, MA. Our RESNET-certified raters serve Holden and all 351 Massachusetts cities and towns.
New homes in Holden must achieve a HERS score of 55 or below under the MA Stretch Code. HERS Rating Company manages the complete compliance process — from initial energy modeling through on-site testing and certified report delivery.
Required air tightness test — included with every HERS Rating.
Learn More →Required duct blaster test for forced-air HVAC systems.
Learn More →Full IECC 2021 Stretch Code compliance from plan review to certification.
Learn More →HERS Rating pricing in Holden depends on project type: Single-family homes $1,850–$2,500 · Multifamily (per unit) $650–$1,200 · ADUs $1,600–$1,850. Contact us for a free, no-obligation quote for your specific project.
Yes. Holden has adopted the MA Stretch Code, which requires all new residential construction to achieve a HERS score of 55 or below. A RESNET-certified HERS Rating is required to document compliance.
The on-site inspection in Holden typically takes 2–4 hours. We deliver your certified HERS report within 24 hours of the site visit.
New construction in MA Stretch Code municipalities like Holden must achieve a HERS score of 55 or below. The Specialized Stretch Code (adopted in some towns) requires HERS 45 or below for homes over 3,000 sq ft.
Contact HERS Rating Company for a free quote on HERS Rating services in Holden, MA. RESNET-certified, 24-hour turnaround.
We provide HERS Rating services throughout the region. Nearby cities we serve: West Boylston · Paxton · Princeton · Rutland · Worcester