Port City ADU – Custom ADU Builders in Wilmington, NC
Port City ADU is a Wilmington-based company specializing in the design, permitting, and construction of custom detached accessory dwelling units (ADUs) in the Wilmington, NC area. They serve homeowners across Wilmington, Wrightsville Beach, and New Hanover County, guiding clients through every stage of the ADU process from initial concept to final build.
The company was founded by Cory Thompson, a licensed commercial and residential general contractor with over 15 years of experience in architectural design, custom home building, and construction. His background includes work under Thompson Design Build, where he developed a focus on creating functional, efficient, and well-crafted living spaces. That focus on smaller, purposeful spaces led directly to the founding of Port City ADU.
What Port City ADU Offers
Port City ADU handles the full scope of the ADU building process, including custom design, permitting, and construction management. Their services are structured around four key phases:
- Custom Design: Each project is tailored to the homeowner's needs, property layout, and budget. The goal is to maximize space, functionality, and visual appeal.
- Permitting: Port City ADU manages all paperwork, approvals, and coordination with local authorities. In Wilmington, ADUs must comply with local zoning regulations, size restrictions, and setback requirements — the team handles this process to keep projects code-compliant.
- Construction Management: From site preparation through to final finishes, the team oversees the entire build with hands-on project management.
- Warranty: A comprehensive warranty is included, covering quality standards and performance expectations after completion.
As a detached ADU builder, Port City ADU focuses specifically on standalone accessory dwelling units. These structures are built on the same property as a primary residence and can serve a range of purposes — multi-generational living, housing for aging parents or adult children, guest accommodations, a home office, or a rental unit.
Costs, Timeline, and Financing
The cost of a detached ADU varies depending on size, design choices, materials, and site conditions. Port City ADU indicates that projects typically range from $80,000 to $250,000 or more. They offer both standard and custom design options to accommodate different budgets.
In terms of timeline, the full process — including planning, permitting, and construction — generally takes between 5 and 8 months. The exact duration depends on design complexity and how quickly permitting approvals are obtained.
For homeowners considering financing, several options may be available, including:
- Home equity loans or HELOCs
- Construction loans
- Cash-out refinancing
- Personal savings or private financing
Port City ADU can assist homeowners in exploring which financing route may be most suitable for their situation.
From a property value perspective, a well-designed accessory dwelling unit can potentially increase a home's resale value and, if rented out, generate monthly rental income. Port City ADU notes that rental income from an ADU can range from $1,000 to $3,000 per month depending on the unit and local market conditions.
For homeowners in the Wilmington area looking for an experienced ADU contractor to manage the full process, Port City ADU offers a structured, end-to-end approach backed by Cory Thompson's extensive background in design and construction.