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Expand Your Home With a Custom ADU

Professional ADU construction in Blackstone, Milford & Wellesley, MA

Need extra space for guests, family, or rental income? An Accessory Dwelling Unit (ADU) is a smart solution that adds flexibility, functionality, and value to your property. At Walsh Builders, we specialize in designing and building custom ADUs that meet your needs while complementing your existing home. Our team handles every detail, from planning and permits to construction and finishing touches, ensuring a seamless experience from start to finish.



Homeowners in Blackstone, Milford, Wellesley, and surrounding Massachusetts areas trust Walsh Builders for high-quality, compliant, and visually appealing ADUs that enhance both lifestyle and property value.

Full-Service ADU Construction

Walsh Builders simplifies the ADU building process so you can enjoy your new space with minimal stress. Our services include:

  • Design & Planning – Tailored ADU layouts that suit your needs and comply with local building codes.
  • Permitting Assistance – We guide you through the approval process for a smooth project start.
  • Construction & Installation – Expert craftsmanship with attention to every detail.
  • Finishing Touches – Flooring, lighting, cabinetry, and fixtures installed with precision to create a complete, move-in ready space.
Yoga studio with mats on wooden floor, exposed beams, and natural light.

Let’s Bring Your Home Vision to Life

Contact Walsh Builders today to schedule your free consultation and start transforming every room in your home with expert design and craftsmanship.

Custom ADUs Designed for Your Lifestyle

Whether you need a home office, a private guest suite, a space for aging parents, or an income-generating rental unit, our ADU builds are fully customizable. We work closely with you to design layouts that maximize space, comfort, and functionality, while ensuring your ADU blends seamlessly with your home’s exterior and local zoning requirements.



From modern studios to fully equipped one- or two-bedroom units, we focus on efficient designs, quality materials, and energy-conscious construction that provides long-term value.

Expand your home’s possibilities with a custom ADU built by Walsh Builders. Call today to schedule your free consultation and start planning your ADU in Blackstone, Milford, Wellesley, or nearby Massachusetts communities.