Massachusetts ADU Specialists

Custom Accessory Dwelling
Unit Homes

LB Modular is New England's premier factory-built ADU builder. Turnkey solutions from permitting to installation — delivered up to 30% faster than traditional construction.

$199k Starting Price
900 ft² Max Floor Plan
30% Faster Build Time
MA State Compliant
New England's Premier ADU Builder

Smart, Affordable ADUs Built for Massachusetts Homeowners

LB Modular Homes combines expert design, precision engineering, and streamlined factory construction to deliver efficient, affordable ADU housing solutions. Whether you're adding space for family, generating rental income, or supporting the region's housing needs — we make it simple.

With years of modular experience, our turnkey ADU solutions cover everything from permitting to installation, minimizing site disruption and reducing build time by up to 30%.

New MA Law Update: Thanks to zoning changes under the Healey-Driscoll Administration's Affordable Homes Act, more Massachusetts homeowners can now build an ADU on their existing property. LB Modular is ready to help you take advantage of this opportunity.

Turnkey Solutions
Our Process

From Design to Move-In Day

Three straightforward steps — we guide you through every stage so you always know what comes next.

01
Design It
Design a floor plan up to 900 sq ft with our modular design process. Customizable layouts, energy-efficient features, and high-quality materials — every square foot serves a purpose. Choose from a compact one-bedroom to a multi-bedroom open-concept layout.
02
The Process
Once your stamped plans are finalized, we obtain your building permit and place the home order. The manufacturer builds your home in 6–8 weeks on average while your foundation and site work are completed simultaneously. On delivery day, your home is set on the foundation in a single day.
03
Move In
Following installation, LB Modular completes final connections — power, plumbing, interior systems, siding, and egress access points — in approximately 6–8 weeks on average. Then it's yours: high-quality craftsmanship, modern design, and efficient use of space. Ready to feel like home.
Featured Model

1-Bedroom ADU

Our beautifully designed 1-bedroom ADU offers an ideal blend of comfort and functionality. Featuring an open-concept living room and kitchen, a private bedroom with en-suite bathroom, and a second bathroom with utilities — everything you need in a compact, modern footprint. Perfect for guests, a home office, or a rental.

900 ft²
Max Size
1 Bed
Bedrooms
2 Bath
Bathrooms
6–8 wk
On Average Build Time
Layout Highlights
Open-concept living room and kitchen
Private bedroom with en-suite bathroom
Second bathroom with utility connections
Smart hallway layout maximizing flow and privacy
Construction & Quality
Factory-built with rigorous quality inspections
Energy-efficient features and high-quality materials
MA state building code compliant
Set on foundation in a single day
Get a Quote for This Model
Also Available
Featured Model

2-Bedroom ADU

This smartly designed 900 sq ft ADU maximizes every inch of its single-story layout. The open-concept living and dining area flows seamlessly into a functional kitchen. Two well-proportioned bedrooms sit at the rear, separated by a centrally located full bathroom with soaking tub, shower combo, and dual vanity. The primary bedroom offers generous floor space with room for a sitting area, while the second bedroom is ideal as a guest room or home office. Efficient, comfortable, and affordable — the perfect backyard home solution.

900 ft²
Max Size
2 Bed
Bedrooms
1 Bath
Full Bathroom
6–8 wk
On Average Build Time
Layout Highlights
Open-concept living, dining, and kitchen area
Two bedrooms side-by-side at the rear of the home
Central full bath with soaking tub, shower & dual vanity
Primary bedroom with space for a sitting area
Second bedroom ideal for guests or home office
Construction & Quality
Single-story layout — fully accessible design
Factory-built with rigorous quality inspections
Energy-efficient features and high-quality materials
MA state building code compliant
Get a Quote for This Model

Ready to Add an ADU to Your Property?

Speak with an LB Modular ADU specialist today — free consultation, no obligation.

Check out some other Accessory Dwelling Units In Massachusetts