ADU Builder in
McLean, VA
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What Our Clients Say
Self-Contained ADU Services in McLean, VA
From Langley and Chesterbrook to Salona Village, we build 100% legal, self-contained secondary residences designed to match McLean's architectural elegance and high property standards.
Detached ADU (Backyard Cottage)
A 100% standalone 2nd home built in your backyard — featuring private kitchen, bath, and utility setups. Ideal for Langley, Chesterbrook & Salona Village lots to maximize rental income.
Garage Conversion ADU
Transform an existing detached or attached garage into a fully conditioned, legal studio or 1-bedroom ADU apartment with separate exterior access.
Basement ADU (Lower-Level Unit)
Convert your walkout or daylight basement into a legal secondary residential unit complete with legal egress, private kitchen, bath, and separate entrance.
Attached ADU (In-Law Wing)
An independent residential wing attached to the primary home — equipped with its own private entrance, kitchenette, and living quarters for aging parents or family.
Custom Architectural ADU Design
In-house architectural plans, 3D renderings, and site layouts custom-tailored to McLean lot topography, setback limits, and HOA covenants.
McLean Permitting & Zoning
We manage 100% of City of McLean Department of Planning & Zoning approvals, lot coverage reviews, building permits, and inspections end-to-end.
What is an ADU — Independent Living vs. Standard Home Addition
An Accessory Dwelling Unit (ADU) in McLean is a 100% self-contained, independent secondary home constructed on a primary single-family lot. Far superior to a basic room addition, every legal ADU features a private entrance, custom kitchen or kitchenette, private bathroom, and independent living quarters.
The City of McLean allows 4 distinct ADU typologies: Detached backyard cottages, attached residential wings, garage conversions, and basement units. We handle 100% of City of McLean zoning compliance, setback verification, and building permit filings for complete peace of mind.
Key ADU Benefits for McLean Homeowners:
Explore ADU Architectural Styles & Design Concepts for McLean, VA
Browse architectural styles, layout concepts, and premium finishes we design and construct for detached backyard cottages, garage conversions, and luxury lower-level suites across McLean and Northern Virginia.
Custom Exterior Design & Elevation
Vaulted Ceiling & Open Living Quarters
Compact Kitchenette & Luxury Bath Entry
WHY US
Why McLean Homeowners Choose US Home Design Build
We are dedicated ADU builders with over a decade of hands-on experience across Northern
Virginia communities.
McLean ADU Specialists
We know the City of McLean's zoning ordinances, historic district requirements, and building codes inside out.
Full Design-Build Service
One unified team from concept to keys. Architectural design, engineering, permits, and quality construction — all under one single contract.
Transparent Pricing
No hidden charges or surprise invoices. We provide detailed line-item estimates upfront before any construction begins.
4.9★ Google Reviews
Dozens of 5-star ratings from satisfied homeowners across Northern Virginia. Our reputation is built on integrity and craftsmanship.
We Handle All Permits
Local permitting can be stressful. We handle all zoning approvals, architectural submissions, and inspections with local jurisdictions.
Virginia Class A Licensed
Fully licensed, bonded, and insured in Virginia. We build strictly to Virginia Residential Code with comprehensive structural warranties.
HOW IT WORKS
Our McLean ADU Construction Process
Building an ADU in McLean is seamless when you partner with the right team. Here’s our proven 5-step roadmap from initial concept to turnkey handover.
1
Free Feasibility
We evaluate your McLean lot, discuss your design vision, and check zoning setbacks at zero cost.
2
Design & 3D Plans
Custom floor plans, photorealistic 3D renderings, and transparent pricing tailored to your property.
3
Permits & Approvals
We prepare engineering packages and manage all City of McLean permit submissions seamlessly.
4
Quality Construction
Expert trades build your McLean ADU to Virginia code with weekly updates and clean worksites.
5
Turnkey Handover
Final municipal inspection, certificate of occupancy, and walkthrough. Your ADU is ready to enjoy or lease.
ALEXANDRIA COMMUNITIES
McLean Neighborhoods We Serve
US Home Design Build builds custom ADUs across all major neighborhoods in the City of McLean, VA. Contact us for a free zoning assessment in your area:
Ready to Build Your McLean ADU?
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Build. Request your free, no-obligation consultation today.








FAQ
McLean ADU — Frequently Asked Questions
Everything you need to know before building an accessory dwelling unit in McLean, VA.
Are Accessory Dwelling Units (ADUs) legal in McLean, VA? +
Yes! The City of McLean updated its zoning ordinance to allow both detached backyard ADUs and interior ADUs (basement/garage conversions) on qualifying single-family lots, subject to setback and lot coverage regulations.
How much does it cost to build an ADU in McLean? +
ADU costs in McLean typically range from $120,000 to $280,000 depending on the type (garage conversion vs. new standalone detached cottage), square footage, site utility hookups, and finish selections.
Do I need a building permit to build an ADU in McLean? +
Yes. Every legal ADU requires site plan review, zoning compliance verification, building permits, and trades permits (electrical, plumbing, HVAC) from the City of McLean Department of Planning & Zoning. US Home Design Build handles 100% of permit filings on your behalf.
Can I rent out my McLean ADU for passive income? +
Yes. Long-term residential leasing is permitted under McLean ADU rules, providing homeowners with strong recurring rental cash flow in desirable neighborhoods like Langley, Chesterbrook, and Salona Village.
How long does the entire ADU design-build process take? +
The entire process usually takes 4 to 7 months from initial architectural drafting and permit approval through foundation, framing, and final occupancy inspection.
Why choose US Home Design Build for my McLean ADU? +
We are local Northern Virginia design-build specialists with over a decade of experience, a 100% permit approval rate, transparent fixed pricing, and a 10-year structural warranty.
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