Last updated: September 24, 2026
What affects the price
Building an ADU is a major project, and the final bill depends on a few key things. Site prep is a big factor; if your land is sloped or needs extensive utility connections, costs go up. The materials you choose—from siding to kitchen finishes—also change the math significantly. Whether you’re building a detached unit or converting an existing garage shifts the permit requirements and structural work needed. We provide exact pricing confirmed free on the call.
About this service
A detached ADU is a standalone building separate from your main home, like a backyard cottage. These provide the most privacy for you or your tenants since there are no shared walls. You need this if you have a large enough yard to accommodate a separate structure.
Frequently asked in Hampton
What accessory dwelling unit services are available in Hampton?
What is involved in accessory dwelling unit construction?
What are accessory dwelling unit builders near me?
What are accessory dwelling unit homes?
What is the cost of an accessory dwelling unit in Hampton?
What is an ADU permit?
What is the permit cost for an accessory dwelling unit in Hampton?
Also serving nearby: Norfolk · Newport News · Portsmouth · Virginia Beach · Chesapeake
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Hampton — population 137,098; about 2,664 residents per square mile across 51.5 sq mi. ZIP codes covered include 23630, 23661, 23663, 23664, 23665, 23666, 23667, 23668.
Neighborhoods served in Hampton: Buckroe Beach, Phoebus, Downtown Hampton, Coliseum Central, Willow Creek — and every surrounding area.
Areas we serve
Browse by state, then city.
