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Yes! Thanks to Massachusetts' new Affordable Homes Act (effective August 2024), ADUs up to 900 square feet can now be built by-right in single-family zoning districts. This means no special permits or discretionary approvals for the basic right to build. However, navigating the building code requirements, Stretch Code compliance, and local regulations still requires expertise—that's where we come in. We handle the entire permitting process so you can avoid costly mistakes and delays.
Great question! Over 250 Massachusetts municipalities have adopted the Stretch Energy Code, which sets higher energy efficiency standards than the base building code. For ADUs, this typically means meeting specific HERS (Home Energy Rating System) scores—usually a maximum of 52-55 depending on whether you're building all-electric or mixed-fuel. Don't worry if that sounds complicated—we're experts at designing ADUs that meet these requirements while keeping costs reasonable. We'll ensure your ADU is energy-efficient, comfortable, and compliant from day one.
Homeowners typically see a 20-30% increase in property value when adding an ADU. But the benefits go beyond the appraisal—you're creating a versatile asset that can generate rental income (offsetting your mortgage or funding retirement), house aging parents or adult children, serve as a home office, or provide flexible guest space. We help you design an ADU that maximizes both your immediate needs and long-term property value.
ADUs aren't just small houses—they're complex projects that intersect zoning law, energy codes, building regulations, and site constraints. We specialize in navigating Massachusetts' unique requirements, including Stretch Code compliance, the new ADU regulations, and local municipal rules. From initial feasibility assessment through final certificate of occupancy, we manage the entire process. You get a single point of contact who understands both construction and the regulatory landscape, so nothing falls through the cracks.
Most ADU projects take 6-12 months from initial consultation to completion, depending on complexity and whether you're converting existing space, building an addition, or constructing a detached unit. Here's our proven process:
We handle the complicated parts so you can focus on how you'll use your new space. Ready to explore how an ADU could work for your property?
Don Perry Construction
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