Spaces as Unique as You.
From concept to keys, we make your dream reality.
Fully custom ADUs designed for your life.
Your lot.
And your style.
We handle everything, from installation to help with financing. Available now in Massachusetts.
If you can dream it, we can build it.
Detached backyard cottages. Attached additions. Smart basement or garage conversions. Every ADU is custom, one of one.
With 40+ years of experience, we handle feasibility, design, permits, utilities, and a turnkey build using nothing but the highest-quality materials.
In Massachusetts, ADUs up to 900 sq ft (or 50% of your main home, whichever is smaller) are allowed by right, making it easier to add dependable rental income or create a comfortable suite for your parents right on your property.
Use it your way: a work-from-home studio, a cozy spot for family, a cash-flowing rental, or any creative venture you can dream up.
How Do You ADU?
Detached cottage? Attached addition?
Basement or garage conversion? We make it yours.
Build Once. Get Paid Monthly.
The easiest way to make passive income in 2025 . See how fast your investment starts paying you.
Learn how we turn your backyard into a living space.
How it works →
See what’s possible on your lot.
Request a free check →
Rent it.
Host parents.
Work there.
Or live in it.
Unlock the
full potential of
your space.
Peace of mind, built in.
Learn More About Our Warranty.
A Little Space, Can Make a Big Difference.
How a custom ADU changed work, family, and income.
“We leased our ADU to a traveling nurse, rent covers the monthly payment and then some.”
— Jenna & Luis | Arlington, MA
“I run a small design studio, so the ADU became my daylight office Monday–Friday and a weekend short-term rental. We average 10–12 booked nights a month, which nearly pays for the build on its own, and my focus is miles better with a separate entrance. Neighbors compliment the look; inspection and permitting were smooth. Clear budget, clear timeline, no surprises, truly thankful we pulled the trigger.”
— Jordan P. | Needham, MA
Get your dream ADU in
four simple steps.
And as few as eight
weeks on site.
Learn more about our fast, and easy installation process.
Want the details?
Frequently Asked Questions
-
An Accessory Dwelling Unit is a small, independent home on the same lot as your main house, complete with its own kitchen, bathroom, sleeping area, and entrance. ADUs can be detached (backyard cottage), attached (addition/over-garage), or a conversion (finished basement/garage).
Common uses: a parents’ suite, rental income, guest space, or a work-from-home studio.
In Massachusetts, ADUs up to 900 sq ft (or 50% of the main home, whichever is smaller) are allowed by right; a standard building permit is still required.
-
Parents’ suite, rental income, guest cottage, or a dedicated work-from-home studio—use it your way.
-
Yes. “By right” means no special permit, but you still need a standard building permit and full code compliance. We handle it end-to-end.
-
Up to 900 sq ft or 50% of your main home (whichever is smaller) is allowed by right in most single-family zones; local rules vary. We’ll confirm what’s possible on your lot.
-
Typical timeline: feasibility 1–2 weeks, design & permitting 6–12 weeks, build 8–16 weeks. We’ll give you a clear schedule once we review your site.
-
Sometimes. State law guarantees by-right ADUs up to 900 sq ft and not larger than 50% of the main home. Some cities/towns choose to be more permissive and allow larger ADUs (often via local by-right rules or a special permit). We’ll check your town’s bylaw and design to the largest size that complies.
-
Yes. Your ADU includes a 3-year workmanship warranty on everything we build.
All materials and equipment, from windows and roofing to fixtures, appliances, and HVAC, are covered by their original manufacturers’ warranties, which we register and pass through to you.
Details vary by brand; ask for the full warranty sheet for your build.