Get Started — Free Feasibility Review
Aerial view of a Fairfield County home with a detached backyard ADU on the same property
Connecticut's ADU Builder

Custom, Modular & Affordable ADUs

Your trusted ADU builder in Connecticut.

Transform your backyard into a modern in-law suite, rental unit, or home office — built smarter, faster, and greener with our modular and prefab ADU models.

Imagine the Possibilities

One backyard. Room for what matters most.

Create a sanctuary for your loved ones

Warmth and privacy for in-laws, guests, or a growing family — close enough to care, private enough to thrive.

Generate reliable rental income

Turn unused backyard space into a steady revenue stream that helps offset your mortgage month after month.

Increase your property's value

A smart long-term investment in equity and appeal — adding livable square footage buyers actively seek.

Why build with CT ADU

A trusted partner from first sketch to final walk-through.

Expert Builders

Off-site modular construction means faster timelines, tighter quality control, and far less disruption to your daily life.

Regulatory Confidence

We provide hands-on permitting assistance — coordinating zoning and building applications and guiding you through your town's specific requirements.

Financing Made Easy

We connect you with trusted lenders who understand ADUs, so funding your project is as smooth as building it.

Our Models

Explore customizable modular & prefab ADUs

View All ADU Models
The Noroton — detached modular ADU cottage exterior with white siding and black-framed windows

The Noroton

2
Bed
1
Bath
768
Sqft
The Weston — detached modular ADU exterior with covered porch and dark shingle roof

The Weston

2
Bed
1
Bath
864
Sqft
The Sherwood — two-bed, two-bath detached modular ADU exterior with black-framed windows

The Sherwood

2
Bed
2
Bath
884
Sqft
Our Process

From first conversation to move-in, in seven steps.

1
Consultation
Goals, budget & vision
2
Feasibility Study
Site & zoning review
3
Planning
Timeline & scope
4
Design
Layouts & finishes
5
Permitting
Permitting assistance
6
Construction & Site Prep
Off-site build begins
7
Installation & Finish Work
Delivered & move-in ready

Bring your ADU vision to life

Start planning today with our quick, interactive questionnaire — a few simple questions and we'll map out your ideal build.

Start Your ADU Journey
From the Blog

ADU insights & Connecticut know-how

Read all posts →
The Noroton — detached modular ADU cottage exterior with white siding and black-framed windows
ADU 101

Can I build an ADU in Connecticut? The town-by-town rules

The Silvermine — detached modular ADU exterior with standing-seam roof accents
Financing

How to fund your ADU: HELOCs, renovation loans & second mortgages

The Candlewood — compact detached modular ADU cottage exterior with warm-cream siding
ADU 101

Modular ADUs in Connecticut: cost, rules & timeline