3 Best ADU Builders in Chantilly, Virginia
Verified ADU contractors and builders in Chantilly, VA
Showing 1–3 of 3 listings
ADU - Appliance Distributors Unlimited - Chantilly Showroom
Visit our Chantilly showroom to explore a comprehensive selection of quality appliances and fixtures for your home building or renovation project. Our experienced team helps contractors and homeowners find the perfect products to complete any kitchen or laundry installation.
MOSS Building & Design
Expert garage-to-living-space conversions that transform underutilized spaces into functional rooms for the Chantilly area. We handle everything from design to construction, creating seamless additions that enhance your home's usability and value.
PremierGarage of Greater Washington DC
Transform your underutilized garage into functional living space with expert garage-to-living-space conversions throughout Greater Washington DC. Our specialized team handles every aspect of your conversion project, from design and permitting to construction and finishing touches.
Frequently Asked Questions — ADU Builders in Chantilly
How much does it cost to hire an ADU builder in Chantilly?
ADU construction costs in Chantilly, Virginia vary widely depending on size, type, and site conditions. Detached ADUs typically range from $150,000–$400,000+, while garage conversions and attached ADUs can be more affordable. Contact multiple builders in Chantilly to get accurate quotes for your specific project.
How long does it take to build an ADU in Chantilly?
In Chantilly, the ADU construction timeline typically ranges from 6 to 18 months from permit application to move-in. Permitting alone can take 2–6 months depending on Virginia local regulations. Prefab and modular ADUs often have faster timelines than site-built units.
Do I need a permit to build an ADU in Chantilly?
Yes, a building permit is required for ADU construction in Chantilly, Virginia. Your ADU builder will typically handle the permit application as part of their service. Virginia has adopted streamlined ADU permitting laws in recent years, which may reduce wait times.
What types of ADUs can be built in Chantilly?
Common ADU types in Chantilly include detached ADUs (backyard cottages), attached ADUs, garage conversions, basement conversions, and prefab/modular ADUs. The best type for your property depends on lot size, zoning, and budget. A local Chantilly ADU builder can advise on what's allowed on your specific parcel.