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.

Talk to a Specialist See How It Works
$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.

Call Us At: (978) 853-7104 Get a Free Quote

Check out some other Accessory Dwelling Units In Massachusetts

A living room area with a grey sectional sofa, a dark green footstool, and a wooden table with green glass bottles. In the background, there is a kitchen with white cabinets, a window with blinds, and a dining table with chairs. The ceiling has reces
A bedroom with a wooden bed frame, a colorful blanket, a window with black blinds, and a wall-mounted air conditioner.
Bathroom with a glass-enclosed shower featuring dark tiles, a rainfall showerhead, and a handheld shower. To the right, a toilet with a white lid and a small window above. To the left, orange and yellow towels hang on a towel rack. The floor is woode
Living room with green walls, beige sofa, blue armchair, dining table with chairs, TV on stand, sliding glass door with curtains, and various items on the table.
Design plans and drawings for a proposed residence at 39 Endicott Street, Peabody, Massachusetts, including an elevation view of the house and a proposed floor plan with room layout and dimensions.
Black and white photo of a modern house with a two-story section on the left, a porch in the middle, and a garage on the right, surrounded by trees.
Floor plan of a house showing a living room, dining area, kitchen, bedroom, bathroom, closet, laundry area, and a one-car garage.
Architectural floor plan of a residential house showing rooms, doors, windows, and exterior features including a garage, parking areas, and yard.