ADU Builders in Boston
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Maximize your property’s potential with a beautifully designed Accessory Dwelling Unit (ADU). These backyard tiny homes can function as guest houses, rental units, and more.
At Beantown Builders, we craft high-quality ADUs that add space, functionality, and value to your home.

Why Beantown Builders
Backed by 40 years of construction experience, we provide a seamless ADU building process from start to finish. Our licensed team handles everything—including design, permits, and construction—while ensuring full compliance with local regulations.
With clear estimates, realistic timelines, and open communication, we make adding an ADU to your property simple and stress-free.
- Full-Service Permitting & Compliance
- Custom ADU Design & Layouts
- Consistent, High-Quality Craftsmanship
- Complete Project Management
Our ADU Offerings
Single Family Homes & Apartments

We help homeowners throughout the Greater Boston area transform their spaces through major home and apartment remodels. Whether you’re purchasing a property in need of some serious love or you’re looking to expand your space through a home addition, we can help you navigate everything from understanding the costs to ensuring the finishes are exactly as you imagined.
- Basement Finishing
- Roofing
- Mechanical, Electrical & Plumbing Upgrades
- Fire & Flood Restoration
What Our Customers Say



FAQs
Are ADUs legal in Boston?
Yes! Most single-family homeowners can build an ADU on their property, but it may depend on zoning regulations, lot size, and design constraints.
Boston has updated ADU pilot programs in certain neighborhoods, and rules vary by area. We handle all permitting to ensure your unit complies with local requirements.
What types of ADUs can I build in Boston?
Boston allows attached, detached, and basement/garage conversion ADUs in certain zoning districts. We can help determine the best option for your property.
How much value does an ADU add to a home in Boston?
An ADU can significantly boost property value by creating additional living space and rental potential. Beyond resale, many homeowners find the true value is in long-term flexibility — whether it’s housing family members, lowering retirement expenses, or generating steady rental income in a high-demand city.
How long does ADU construction take in Boston?
Timelines depend on scope. A simple basement conversion might take a few months, while building a detached unit with utilities and full foundations can extend to a year or more. The permitting process in Boston also adds time, so working with our experienced contractors can streamline the schedule.
Our Work
Interested in exploring our previous work? Browse our portfolio below and see how Beantown Builders can bring your vision to life.
Proudly Serving the Greater Boston Area
Beantown Builders is proud to serve both commercial and residential clients throughout Massachusetts. Our primary service areas include Boston, Brookline, Somerville, and Cambridge, but we also serve a wide range of other cities including Taunton, Quincy, Newton, Waltham, Lowell, Lawrence, Lynn, Haverhill, and Framingham.