Your Triangle Home Addition Contractor for Space That Matches and Lasts
Forge Construction Group is a licensed North Carolina home addition contractor (License #102873) designing and building custom home additions for established homes across Raleigh, Cary, Durham, Chapel Hill, and Wake Forest. From second-story additions and in-law suites to whole-home expansions, we build additional living space that matches your home’s architecture and holds its value for decades. Forge builds the full range of home additions across the Triangle:
In-law suites, mother-in-law suites, and detached ADUs
Second-story additions and build-ups
Room additions, bump-outs, and primary (master) suite additions
Kitchen expansions, sunroom additions, and first-floor offices
Whole-home additions and full renovations
In the Triangle’s tight housing market, it is often smarter to add space to a home you love than to buy new. The difference between an addition that adds value and one that becomes a liability comes down to craftsmanship, structural engineering, and one accountable team from design to final inspection. That is the Forge standard.
Second-Story Additions: Add Space Without Giving Up Your Lot
When your lot and location are right, building up is the smartest way to gain square footage without sacrificing your yard. Forge engineers second-story additions from the foundation up, assessing your home’s load paths and reinforcing the structure so the new floor rests on solid ground.
Most second-story additions become the new heart of the home: a private primary suite, bedrooms for a growing family, or a retreat above the main living areas. We match rooflines, siding, and windows so the addition reads as original architecture, and we keep your home weather-tight throughout the build. Explore our second-story additions.
In-Law Suites, Mother-In-Law Suites & ADUs
An in-law suite or accessory dwelling unit (ADU) is one of the highest-value additions a Triangle homeowner can build, whether for aging parents, adult children, or long-term rental income. Forge builds attached and detached in-law suites with private entrances, full baths, kitchenettes, and finishes that match your main home, all permitted and built to North Carolina code.
We handle the setbacks and municipal requirements that vary across Wake, Durham, and Orange counties, so your suite is compliant and inspection-ready. Explore our ADUs and in-law suites.
Whole-Home Additions & Renovations
When a home needs more than a single room, Forge manages the full transformation as one coordinated build: expanding the footprint, opening dated floor plans, and elevating finishes throughout in one sequenced project rather than a decade of disruptive one-offs. We protect the character that made you buy an established home while bringing its function into the present. Explore our whole-home additions.
Looking for a Custom Home Addition?
Whether you are adding a single room, building a second story, or transforming the whole home, Forge plans and constructs your addition as one accountable design-build project across Raleigh, Cary, Durham, Chapel Hill, and Wake Forest, matched to your home and built to last.
Main Office Phone Number
(984) 369-9802
Room Additions & Bump-Outs
Not every addition is a wing. A room addition, a larger primary suite, an expanded kitchen, a sunroom addition, a garage addition, or a first-floor office can transform how a home lives. Forge builds room additions and bump-outs with the same structural rigor as our largest projects, tied seamlessly into your roofline, siding, and interior so the new space is indistinguishable from the original. A bump-out is often the most cost-effective way to gain a few critical feet in a kitchen, bathroom, or primary bedroom without the expense of a full wing.
Investing in a Home Addition in the Triangle
Forge focuses on substantial, high-craft additions, and most of our projects fall in the $250,000-and-up range. Actual investment depends on type, size, and finish level:
- Room additions and bump-outs: from around $75,000
- In-law suites and ADUs: from around $150,000
- Second-story additions: from around $200,000
- Whole-home additions and renovations: from around $300,000
As a planning benchmark, Triangle home additions run $150 to $400 per square foot. Our clients aren’t shopping for the lowest bid; they are investing in craftsmanship, structural integrity, and a finished result that adds lasting value to an established home. After a design consultation, Forge provides a detailed, fixed scope, so you know exactly what your project costs before a single wall goes up.
Our Seamless Project Management Process
Every Forge addition is managed start to finish by one team across design, engineering, permitting, construction, and finish work, with clear communication at each stage. Because we carry a limited project load, your addition gets senior attention from the first drawing to the final walkthrough, and you always know what is happening next and when it will be done.
Let’s Start The Conversation – Ask An Expert!
Your home is likely your largest investment, and an addition should protect it, not gamble with it. 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, Forge builds additions that look like they were always there. Tell us what you are envisioning, and we will show you how Forge builds it right.