ADU Builders in Chapel Hill – What You Need to Know
An Accessory Dwelling Unit (ADU) is a fully independent living space located on your property, complete with its own kitchen, bathroom, and living area. Whether attached to the main home or constructed as a separate structure, an ADU offers remarkable flexibility for a wide range of needs. In Chapel Hill and the surrounding areas, ADUs have grown increasingly popular for multi-generational living, guest accommodations, home offices, and rental income opportunities. As an investment in your property, an ADU is a smart, long-term solution for maximizing its potential.
Local zoning laws in Chapel Hill and surrounding jurisdictions such as Orange County and Chatham County permit both attached and detached ADUs on qualifying properties. Size limits, setbacks, and height restrictions vary depending on the specific location. BOLD Construction operates as a dedicated ADU contractor and accessory dwelling unit builder in the Chapel Hill area, guiding clients through every step of the process — from feasibility assessments and permitting to design and full construction.
Some popular uses for an ADU in Chapel Hill include:
- Multi-generational living arrangements
- Secondary or in-law suites
- Home offices
- Studios
- Guest houses
- Pool houses
ADU Size Limits and Costs in Chapel Hill
ADU size limits are governed by local zoning regulations. In Chapel Hill and Orange County, ADUs are typically permitted up to 750 square feet. In Chatham County, the allowable size increases to up to 1,500 square feet, or 50% of the main home's square footage — whichever is greater. While ADUs cannot be sold separately from the primary residence, they can significantly increase overall property value and functionality.
As a detached ADU builder and backyard cottage builder serving the Chapel Hill region, BOLD Construction builds ADUs across a wide range of sizes and scopes. Costs can vary considerably, but a general starting range is:
- Total project cost: $350,000 to $500,000
- Per square foot: $350 to $500
These figures reflect the reality that quality ADU construction is a meaningful investment. Whether someone needs a granny flat, a casita, or a fully equipped in-law suite, the value an ADU adds — both financially and in terms of lifestyle flexibility — makes it well worth considering.
The Design-Build Process
BOLD Construction follows a structured design-build process to ensure every ADU project is delivered with clarity, quality, and no surprises.
- Discovery Meeting & Site Visit: The process begins with an in-depth conversation about the client's vision, budget, and timeline, followed by a thorough inspection of the property and lot. A pricing proposal is then presented based on the findings.
- Design Agreement: Once the client is ready to move forward, the team develops a personalized design using the latest technology and project management tools, giving clients a clear picture of the finished project.
- Architectural Design Development & Fixed-Price Proposal: Working closely with an architectural team, the design is refined to reflect the client's style and lifestyle. A clear, fixed-price proposal is then presented — no hidden costs, no inflated invoices, and no confusing cost-plus arrangements. The total cost is locked in before construction begins.
As a trusted garage conversion contractor and full-service ADU builder, BOLD Construction proudly serves Orange County and Chatham County, including Chapel Hill, Hillsborough, Carrboro, Pittsboro, Siler City, Goldston, and Cary.