Built to Elevate. Forged to Endure.

In-Law Suites & ADUs in Raleigh, Durham & the Triangle

Forge Construction Group is a licensed North Carolina contractor (License #102873) that builds custom in-law suites and accessory dwelling units (ADUs) for established homes across Raleigh, Cary, Durham, Chapel Hill, and Wake Forest. We build attached and detached suites with private entrances, full baths, and kitchenettes, permitted to code and finished to match your main home.

Why Families Choose Forge for an ADU or In-Law Suite

An in-law suite has to do two things at once: give its occupant real independence, and integrate with your home and property without looking like an add-on. Forge designs ADUs that live like small homes, with the privacy, accessibility, and comfort a family member deserves, while matching the architecture and finishes of the main house. We handle the structural, permitting, and utility work that makes a suite fully legal and built to last.

Attached & Detached Options

Some families want a suite connected to the main home for easy access; others prefer a detached ADU for privacy or rental potential. Forge builds both: bump-out and above-garage suites tied into the existing home, and standalone detached units with their own entrance, kitchen, and bath. We help you choose based on your lot, your goals, and the setback and utility rules for your specific property.

Craftsman-style detached mother-in-law suite in the Triangle, built by Forge Construction Group
Open living and kitchen interior of an in-law suite ADU in the Triangle, built by Forge Construction Group

Designed for Independent, Comfortable Living

A great in-law suite lives like a small home. Forge plans for accessibility, natural light, storage, sound separation, and a full kitchenette and bath, so the space works for aging parents, adult children, guests, or tenants. Thoughtful details like zero-step entries, wider doorways, and a private entrance make the suite comfortable today and adaptable for whatever the years ahead bring.

Does an In-Law Suite Add Value to Your Home?

Yes. A well-built in-law suite or ADU is one of the highest-value additions a Triangle homeowner can make. It adds flexible living space for multiple generations, and a legal ADU can generate long-term rental income or make the property more appealing to future buyers who want that flexibility. Because it is a permanent, permitted structure built to match the home, it adds lasting value rather than serving as a temporary fix.

Charming detached in-law suite ADU in the Triangle, built by Forge Construction Group

Looking for an
ADU or In-Law Suite?

From an above-garage suite to a fully detached ADU, Forge designs and builds your in-law suite as one permitted, accountable project across Raleigh, Cary, Durham, Chapel Hill, and Wake Forest. You can also explore our second-story additions for another way to add space.

Two-story detached ADU with a garage in the Triangle, built by Forge Construction Group

What an ADU or In-Law Suite Costs in the Triangle

Investment depends on whether the suite is attached or detached and on its size and finish. Attached in-law suites generally start around $85,000, while custom detached ADUs typically begin around $150,000 and scale from there with kitchens, baths, and higher finishes. Forge provides a detailed, fixed scope after a design consultation. Explore all of our home addition services.

Permitting & Code, Handled

ADU rules, setbacks, and utility requirements vary across Triangle municipalities, and getting them wrong is expensive. Forge handles the zoning, permitting, and inspections that differ across Wake, Durham, and Orange counties, so your suite is fully legal and inspection-ready. We confirm what your specific lot allows before design, so there are no costly surprises once the project is underway.

In-law suite ADU under construction and permitted to North Carolina code in the Triangle, by Forge Construction Group
Bedroom and bath interior of an in-law suite ADU with finishes matching the main home, by Forge Construction Group in the Triangle

Finishes That Match Your Main Home

As a licensed North Carolina general contractor (License #102873), Forge builds every in-law suite and ADU to code and to the standard of the main home. We take on a deliberate number of projects, so yours gets senior attention from design through final inspection, and a finish that looks like it always belonged to the property.

Our Seamless Project Management Process

Every Forge in-law suite is managed start to finish by one team across design, permitting, structure, utilities, and finish work, with clear communication at each stage. You always know what is happening next, who is on site, and when your suite will be ready to live in.

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Let’s Start The Conversation – Ask An Expert!

If your family is growing in more directions than one, let’s talk about building space that works for all of it. Forge builds in-law suites and ADUs for established homes throughout the Triangle, from North Raleigh and Inside the Beltline to Preston in Cary, Hope Valley in Durham, Southern Village in Chapel Hill, and Heritage in Wake Forest.