ADUs in Massachusetts: Expanding with Purpose

Accessory Dwelling Units (ADUs) are reshaping neighborhoods across Massachusetts—and for good reason. These small, self-contained units offer smart solutions for multi-generational living, downsizing, or even rental income.

As housing needs shift across Massachusetts, more homeowners are exploring Accessory Dwelling Units (ADUs) as a practical and forward-thinking solution. Whether you’re looking to create space for aging parents, generate rental income, or build a private home office or guest suite, ADUs offer flexibility and value—without the need to move.

At JFA Design Group, we specialize in helping clients transform ideas into elegant, fully functional ADUs that align with both their lifestyle goals and local regulations. Here's what you need to know if you're considering building an ADU in Massachusetts:

🔎 1. Zoning and Local Bylaws

Massachusetts law allows cities and towns to adopt local bylaws regarding ADUs—and they vary widely. Some municipalities require owner occupancy of the primary home, while others impose square footage limits or restrict the number of bedrooms.
Before starting your design, we review the zoning rules for your specific property to make sure your project complies from the start.

📝 2. Permitting Process

Securing permits for an ADU involves multiple steps, including site plan reviews, building permits, and sometimes special permits depending on your town. We guide you through every step—from application to approval—so the process feels clear and manageable.

📐 3. Design and

Size Requirements

Most ADUs in Massachusetts are limited to around 900 square feet, though this number can differ by town. At JFA, we specialize in maximizing functionality and aesthetic appeal in compact spaces. Every square foot is thoughtfully planned, making your ADU feel spacious and cohesive with your existing home.

💡 4. Utilities and Systems

We’ll help you assess how to connect your ADU to existing water, sewer, and electrical systems. In some cases, separate metering or upgrades may be required. Our experience helps prevent surprises and supports smooth coordination with local utility providers.

🏗️ 5. Construction Timeline

and Budget

Building an ADU is generally faster and more affordable than new home construction—but that doesn’t mean shortcuts. JFA Design Group offers a clear project timeline, works closely with vetted contractors, and helps you manage your budget with transparency from day one.

🌿 6. Sustainable Solutions

Massachusetts homeowners often ask about green design options—from solar panels to energy-efficient insulation. Our ADU designs prioritize sustainability and comfort, so your new space is both eco-conscious and future-ready.

Is an ADU Right for You?
With housing costs on the rise and multigenerational living becoming more common, ADUs are a smart investment in both your home and your future. At JFA Design Group, we don’t just draw plans—we design possibilities.

Whether you're ready to get started or just gathering information, we’re here to help you navigate the process with clarity, creativity,

and care.



Let’s bring your ADU vision to life.
Contact us today to schedule a consultation.