Home Additions & Remodeling in McLean, VA
Plan a home addition in McLean without leaving the neighborhood you love. Mosaic coordinates room additions, second-story additions, garage additions and home remodeling, with design, permit documents and construction managed by one team. Our Windy Hill project shows how new living space can be built above an existing garage.
The Windy Hill second-level addition · McLean, Virginia · Original Mosaic project photography
What we build in McLean
One team for design, permits and construction.
For McLean properties in Fairfax County, the County handles the residential addition and alteration permit process. We confirm the parcel, zoning district and applicable requirements before finalizing the design.
Virginia Class A licensed contractor · License no. 2705181959 · Office in Chantilly
Request a consultation in McLean- Home additionsRoom to grow, without leaving the neighborhood you love.
- Garage additionsSpace for your cars, your workshop, and whatever comes next.
- Decks & patiosA new connection to the outdoors, made for everyday living.
- Sunrooms & enclosed porchesMore daylight. A closer connection to the outdoors.
- Whole-home renovationsA more connected home, designed around the way you live.
- Custom homesFrom the first idea to the final detail. Entirely yours.
- Kitchens & bathroomsBeautiful, hardworking spaces. Every detail considered.
- Basement remodelingMake more of the space you already have.
- Commercial renovationsSpaces that work as hard as your business.
- Architectural design & permittingCoordinated drawings for homes and commercial spaces.
Second-story and over-garage additions
Our McLean Windy Hill project added a living room above a three-car garage, with skylights, a full bathroom and a laundry room. Your existing structure needs its own evaluation before an upper-level addition is designed.
A renovation that works with your home
For McLean home remodeling, we discuss circulation, daylight, kitchen connections and exterior proportions alongside the construction scope. Bring your current floor plan and priorities to the first consultation.
Planning in McLean
Local details to check before you build.
Start with the Fairfax County permit process
Fairfax County has a residential addition and alteration permit process. The required documents depend on your scope, including any structural changes to the existing home.
Fairfax County addition permitsCheck your lot’s setbacks
Setbacks depend on the property’s zoning district and applicable development conditions. A survey or plat helps establish where a room addition or detached garage could fit; there is no single setback rule for every McLean home.
Fairfax County zoning guidanceRequirements depend on your parcel and project scope. Confirm current requirements with the reviewing authority; this guidance is not an approval or a permit determination.
A Mosaic homeowner’s experience
Design expertise. Personal follow-through.
“Mosaic (Dennis) was responsive and he followed through with everything he said. He gave good design ideas keeping in mind functionality and price.”
minoo samuel · Google review excerpt published on Mosaic’s website · Company-wide testimonial; project location not specified.
Read the published reviewPlans and permits
Drawings for homes and commercial spaces.
Need drawings only? We also provide design and permitting services in McLean.
Design & permitting- Architectural & structural design
- MEP & fire-protection plans
- Restaurant design & permit plans
- Office & shell-space tenant fit-out plans
- Warehouse design & project drawings
- Hazardous-material storage plans & permitting
- Permit plan sets & permit processing
Plan your next step
Local service guides & homeowner questions.
Explore additions, garages, outdoor living and remodeling guidance for Fairfax County.
Visit the Fairfax County planning libraryYour next chapter starts here
Let’s make room for your vision.
Tell us what you have in mind. We’ll take it from there.
