Building & remodeling in Arlington County.
Evaluate lot coverage and setbacks together when comparing more interior space with an outdoor living area.
Portfolio reference: The Windy Hill second-level addition · McLean, Virginia. Photos illustrate Mosaic’s work, not work in every service area.
Services for your home
Choose the project you have in mind.
Home additions in Arlington County, VA
Room additions, upper-level additions and expanded living spaces in Arlington County, with coordinated design, permits and construction.
Explore the serviceGarage additions & outdoor living in Arlington County, VA
Plan attached or detached garages, decks, patios, sunrooms and enclosed porches in Arlington County with Mosaic Design & Build.
Explore the serviceHome remodeling & custom homes in Arlington County, VA
Explore whole-home renovations, kitchen and bathroom remodeling and custom-home design-build services in Arlington County.
Explore the serviceFrom the planning journal
Know what to ask before you build.
Homeowner questions
Planning in Arlington County.
Where do I start with a home addition in Arlington County?
Evaluate lot coverage and setbacks together when comparing more interior space with an outdoor living area. Bring your property address, plat and room priorities to a design consultation.
Which local approvals should I check?
Arlington residential building applications use Permit Arlington. Prepare dimensioned plans and identify applicable prior approvals; a certified, scaled plat helps verify setbacks.
What could limit the size or position of the project?
Arlington lot-coverage rules apply to additions and new construction and include detached garages and pergolas among counted features. Coverage and setbacks are separate checks.
Can Mosaic handle design and construction?
Yes. Mosaic coordinates design, material selections, permits and construction. We also offer design and permitting services separately. Mosaic is a Virginia Class A licensed contractor, license no. 2705181959, with an office in Chantilly.
Can you give a guaranteed price or permit timeline online?
No. Existing conditions, site access, utilities, materials and reviewing authorities affect scope, pricing and timing. A consultation is a request to discuss your project, not a reserved appointment or an approval.
Local requirements can change. Guidance is general information, not an approval or a substitute for property-specific review.
Your next chapter starts here
Let’s make room for your vision.
Tell us what you have in mind. We’ll take it from there.
