Smart Investment

Accessory
Dwelling Units

Add livable space, generate income, and keep family close. We build custom ADUs across NH and Southern Maine — from design and permits to the final coat of paint.

Rental Income In-Law Suites Garage Conversions Detached Cottages NH Law Compliant
Get a Free ADU Consultation See ADU Types →

Why Build an ADU?

Accessory Dwelling Units are increasingly one of the smartest property decisions a homeowner can make. NH and Maine state laws have made them easier to permit and build than ever before.

Whether you're looking to generate rental income, create a private space for aging parents, accommodate adult children, or simply add value to your property — an ADU delivers on all fronts.

NH & Maine ADU Law

New Hampshire RSA 674:71–73 requires municipalities to allow at least one attached or internal ADU on single-family lots. Maine's LD 2003 (2022) and LD 1829 (2025) further streamlines the process, eliminating parking mandates and permitting detached units. We handle all permitting for you.

Start Your ADU Project →

Generate Rental Income

Offset your mortgage or build a passive income stream. A well-finished ADU in the Seacoast can rent for $1,200–$2,200/month.

Keep Family Close

Create private, comfortable space for aging parents or adult children — nearby but with their own independence and privacy.

Increase Property Value

ADUs consistently add more value to a property than they cost to build, making them one of the highest-ROI home improvements available.

Flex Space for Any Need

Home office, artist studio, guest suite, caretaker unit — ADUs adapt to your life as your needs change over time.

What We Build

ADU Types We Specialize In

Every ADU is designed on-site to integrate seamlessly with your existing home's exterior and style.

Attached ADU

An addition connected to the main home sharing at least one wall. Most cost-effective — shares existing utilities and foundation.

  • Shares foundation & utilities
  • Most affordable option
  • Interior connection optional
  • Can be over garage or beside home

Detached ADU

A standalone structure on the same property — maximum privacy for both parties. Ideal for rental or independent living.

  • Full privacy for both households
  • Separate utility hookups
  • Garden cottage or backyard build
  • Highest rental income potential

Garage Conversion

Convert an attached or detached garage into livable space. Most efficient path — structure already exists.

  • Lowest cost per square foot
  • Fastest construction timeline
  • Exterior matched to existing home
  • New insulation, HVAC & electrical
The Process

How We Build Your ADU

01

Free Consultation & Site Assessment

We walk your property, discuss your goals, and identify the best ADU solution for your lot, budget, and needs.

02

Zoning, Permits & Design

We handle all local zoning research, permit applications, and develop detailed plans tailored to your property.

03

Foundation & Framing

Our crew begins construction — foundation, framing, roofing, and rough mechanicals (plumbing, electrical, HVAC).

04

Exterior & Interior Finish

Siding matched to your home, insulation, drywall, flooring, cabinetry, fixtures — every detail finished to spec.

05

Inspections & Certificate of Occupancy

We manage all required inspections and obtain your CO so the unit is legal, insurable, and ready to occupy or rent.

06

Final Walkthrough

We walk every inch of the finished unit with you. Not complete until you're fully satisfied with the result.

Schedule Your Free ADU Consultation →