MB Construction, LLC – Billerica, MA

ADU & In-Law Addition Contractor in Billerica, MA

ADU & In-Law Addition Contractor in Billerica, MA

Build a Functional, Private Living Space on Your Property

MB Construction is a trusted ADU and in-law addition contractor in Billerica, MA,
helping homeowners create comfortable, independent living spaces for family members.
Since 2011, we’ve designed and built high-quality accessory dwelling units and
in-law suites throughout Middlesex County—delivered on time and on budget.

Whether you’re planning for aging parents, extended family, or additional rental income,
we provide complete design-build solutions tailored to your property and goals.

What Is an ADU or In-Law Addition?

An ADU (Accessory Dwelling Unit) or in-law suite is a secondary living space built on your property.
These spaces can be attached to your home, added as a second story, or built as a detached structure.

Each project is customized to include:

  • Private entrances
  • Full kitchens or kitchenettes
  • Bathrooms
  • Living areas
  • Bedrooms

We handle everything from design and permits to construction and final walkthrough.

Types of ADU & In-Law Additions We Build

We design and construct a wide range of ADU and in-law additions in Billerica and surrounding areas:

Attached In-Law Suites

Seamlessly connected to your existing home while maintaining privacy.

Detached ADUs

Standalone backyard units ideal for complete independence.

Garage Conversions

Transform your existing garage into a fully functional living space.

Basement In-Law Apartments

Maximize unused space with a finished, livable lower level.

Second-Story Additions

Add a full living unit above your existing home.

Why Build an ADU or In-Law Suite?

Adding an ADU isn’t just about space—it’s about flexibility and long-term value.

  • Keep family members close while maintaining independence
  • Increase your property value
  • Create potential rental income
  • Plan for multigenerational living
  • Avoid the cost of assisted living or moving

Why Choose MB Construction?

When it comes to ADU and in-law additions in Massachusetts, experience matters.

  • Serving Billerica, MA since 2011
  • Full design-build contractor (we handle everything)
  • Expertise in local zoning and permitting
  • High-quality craftsmanship and materials
  • Clear communication from start to finish
  • Projects completed on time and within budget

We don’t cut corners—and it shows in every project we complete.

Our ADU Construction Process

1. Consultation

We discuss your goals, budget, and property layout.

2. Design & Planning

Custom plans are created to match your vision and meet local zoning requirements.

3. Permitting

We handle all permits and approvals with your local municipality.

4. Construction

Our team builds your ADU with precision and attention to detail.

5. Final Walkthrough

We ensure everything meets your expectations before project completion.

Areas We Serve

  • Billerica, MA
  • Andover, MA
  • North Andover, MA
  • Reading, MA
  • North Reading, MA
  • Tewksbury, MA
  • Burlington, MA
  • Bedford, MA
  • Chelmsford, MA
  • Wilmington, MA
  • Greater Boston, MA

Frequently Asked Questions

How much does an ADU or in-law addition cost in Massachusetts?

Costs vary depending on size, design, and site conditions. Most projects range widely,
so we recommend scheduling a consultation for an accurate estimate.

Do you handle permits and zoning requirements?

Yes. We manage the entire permitting process and ensure your project meets all local zoning laws.

How long does it take to build an ADU?

Most ADU and in-law addition projects take several months from design to completion,
depending on complexity.

Can I build an ADU on my property?

It depends on your local zoning regulations. We’ll evaluate your property and guide you through what’s possible.

Do you offer custom designs?

Absolutely. Every ADU we build is fully customized to fit your home and your needs.

Start Your ADU or In-Law Addition Today

If you’re looking for a reliable ADU builder or in-law addition contractor in Billerica, MA,
MB Construction is ready to help.

From concept to completion, we make the process smooth, efficient, and built around your vision.

Call: (978) 500-4572 for a free estimate

Or request a consultation today.

ADU Construction & In-Law Additions in Billerica, MA

MB Construction specializes in ADU construction, in-law additions, and accessory dwelling units
in Billerica, MA and surrounding towns. Whether you’re planning a detached ADU, garage conversion,
or full in-law suite, our team delivers high-quality results backed by years of experience in
Massachusetts residential construction.