ADU Contractors in Cary, NC

Transform your property with Cary’s trusted ADU (Accessory Dwelling Unit) contractors. At AG-CM, we specialize in building ADUs that blend functionality and long-term value.

Why Choose Us

Proven Experience & Credentials

With years of industry experience, AG-CM stands among the top ADU construction contractors in North Carolina.

Full Range of Construction Services

From design to final inspection, we provide full-service project management to ensure stress-free ADU construction services.

Transparent Pricing & Timelines

We offer clear quotes and an honest timeline. You’ll know exactly what you are paying.

Local Expertise & Certifications

As a Cary-based team and National Association of Home Builders (NAHB) member, we understand local codes and deliver compliant, lasting results.

128331

What is an ADU?

An Accessory Dwelling Unit (ADU) is a self-contained living space built on the same property as your main home. ADUs can be designed to serve a wide range of needs, making them a valuable and flexible addition to any property.

Different Types of Uses of an ADU

Benefits of Working With Us

Personalized Design

Our ADU design-and-build approach ensures every project is tailored to your vision.

Quality You Can Trust

We use premium materials and skilled craftsmanship to ensure lasting durability.

Stress-Free Process

From permits to the final walkthrough, we take care of it all.

Increased Property Value

Expert-built ADU home construction adds both comfort and value to your home.

Process

Our Proven Process

Step 1. Consultation & Planning

We start with a consultation to understand your goals.

Step 2. Design & Blueprint

Then, our design-team partners craft plans that are both compliant and efficient.

Step 3. Permit Handling

We manage all paperwork to ensure compliance with local regulations.

Step 4. Construction & Supervision

As a trusted ADU construction company, we oversee each phase with precision and care.

Step 5. Final Review & Handover

We walk you through your finished space to ensure your 100% satisfaction before completion.

Your Local Specialists for High-Quality ADU Construction

We bring craftsmanship, integrity, and precision to every project.

Our transparent process keeps you informed and confident throughout.

Proudly serving North Carolina homeowners since 2021 with trust and professionalism.

5780

ADU Zoning & Permits in the Triangle

Cary, Raleigh Building Permit for ADU
Homeowners in Cary, Raleigh, Apex, and Morrisville may be able to build an Accessory Dwelling Unit (ADU) more easily than in the past as many local ordinances have expanded where they are allowed. However, the specific rules vary by municipality. In most cases, an ADU must be built on the same lot as the primary residence, typically limited to one per lot, and must meet local zoning, size, setback, and design requirements before permits are issued by the city or town. A licensed NC General Contractor is required for projects valued above $40,000, which covers many ADU builds.
 
Cary homeowners should know that as of June 2025, the town updated its zoning ordinance (ACT 32) to allow ADUs in all residential zoning districts where detached homes are permitted. This opened up many Cary neighborhoods that previously could not build one. If you were told your property didn’t qualify in the past, it may be worth checking again, since the rules have changed.
 
AG Construction Management handles the entire permitting and inspection process on your behalf in Cary, Raleigh, Apex, and Morrisville, so you won’t have to navigate the process on your own.  

Cost & Financing

Transparent Quotes

Our clear pricing ensures you know exactly what your investment covers.

Value for Every Budget

As a reliable accessory dwelling unit builder, we provide cost-effective options without compromising quality.

Service Areas

Serving homeowners across the Triangle area with trusted ADU expertise.

Testimonials

What our Customers Say

10612

Frequently Asked Questions

What is an ADU, and why to build one?

An ADU(Accessory Dwelling Unit) is a self-contained home on your property. It’s ideal for family use, rentals, or extra living space.

Please consult our team for exact details.

Our team manages all approvals to ensure your project meets local codes.

ADU costs in the Triangle vary depending on the type of build and site conditions. A garage conversion is usually the most affordable option, typically ranging from $60,000 to $130,000 since the existing structure reduces new construction. A detached ADU built from the ground up often ranges from $180,000 to $300,000+, depending on size, utilities, site work, and finish level. Above-garage ADUs typically start around $120,000+, particularly if structural reinforcement is required. These ranges reflect typical material and labor costs in the Raleigh–Cary area, but every property is different. The best way to determine an accurate cost is through a consultation with our team.  

Looking For A Trusted Accessory Dwelling Unit Contractor?

Contact us today and let our team help you create the extra space, increase rental income, or develop a guest retreat that your property deserves.