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About CT ADU

Connecticut's trusted ADU builder

Modular & prefab ADUs — affordable, efficient, built to last.

We specialize in detached modular and prefab accessory dwelling units for homeowners across Fairfield County, built off-site and finished on your lot. From zoning and permits to construction and financing, we guide you through the details so adding an ADU feels seamless instead of overwhelming. When a lot or a vision calls for something modular can't deliver, our builder partners can provide a site-built option.

Start your ADU journey See our models
Finished detached ADU cottage with tidy landscaping and covered porch
Off-site
built off-site, finished on your lot
1
dedicated project guide, start to finish
9
customizable models
CT
licensed & local
What sets us apart

Built smarter, faster, and greener

Affordable

Efficient off-site manufacturing can improve cost predictability, so a high-quality ADU can be cost-competitive with comparable site-built construction.

Efficient

Factory construction can run while your site work and permitting progress in parallel, which can shorten the overall timeline and disruption at home.

Sustainable

Advanced insulation, high-performance windows, and energy-saving appliances keep bills low — while precision building minimizes material waste.

The off-site advantage

Most of your ADU is built before it reaches your yard

Building in a controlled factory setting means tighter quality control, less waste, and far less disruption at home — while your site work and permitting move in parallel.

Controlled factory process

Indoor production reduces exposure to many weather-related delays and material disruptions that can stall a site build.

Quick on-site installation

The on-site set phase is typically much shorter than fully site-built construction — with minimal disruption to your property and daily life.

Proven, refined plans

Customizable models with details worked out in advance mean smoother permitting and fewer surprises.

One team, end to end

A trusted network behind every build

Over the years we've built a network of architects, manufacturers, contractors, lenders, and real estate professionals — so your ADU experience is coordinated and seamless from first sketch to final walk-through.

Architects
Site-fit layouts & elevations
Manufacturers
Precision factory production
Contractors
Foundation, utilities & install
Lenders
ADU-savvy financing partners
Zoning & permitting
Local approvals handled for you
Real estate pros
Value & rental-income guidance

Let's build something that works for you

Share your vision and property details, and we'll guide you on local regulations, design options, and financing — starting with a free feasibility review.

Start your ADU journey