CLASS A LICENSED ADDITION BUILDER · MCLEAN, VIENNA & NORTHERN VIRGINIA
Home Additions in Northern Virginia
Garage, above-garage and second-story additions, primary suites and sunrooms in McLean, Vienna, Arlington and Fairfax, all built by one licensed team.
★ 4.9 on Google · Class A License #2705197237 · Plans & permits handled · 1-year workmanship warranty
Real project: a second-story addition with a new primary suite on Inwood Dr, Springfield. See the case study →
REAL ADDITIONS · REAL HOMES
Additions we built in Northern Virginia
Tap any photo to zoom. Some photos are virtually staged with furniture and décor.
Second-Story Addition
Inwood Dr, Springfield, VA
Two-Story Addition Framing
Calamo St, Springfield, VA
Primary Suite with Exposed Beams
Inwood Dr, Springfield, VA
New Staircase to the Addition
Inwood Dr, Springfield, VA
Rear Addition with Deck & Patio
Bracken Ct, Springfield, VA
Vaulted Beam Ceiling
Ferndale St, Springfield, VA
New Siding to Match
Mason Bluff Dr, Burke, VA
Bright Addition Living Space
Marline Ct, Woodbridge, VA
4.9 ★ ON GOOGLE
What clients and home buyers say
Real feedback from people who hired us, and from buyers who bought homes we renovated.
★★★★★
“The Great House helped me renovate an entire house including kitchen, bathrooms, flooring, and paint. The owner was very communicative and very quick with completing the work. Highly recommend.”
Michael Carpio
Full home renovation · Google review
★★★★★
“It was love at first sight. You have done an amazing job on it. I loved the living space including the wonderfully updated kitchen, deck, beautiful bathrooms and fantastic basement.”
Aimee N.
Home buyer · Springfield
★★★★★
“What truly stood out to me was their integrity, attention to detail, and commitment to quality.”
Sohila Sabah
Remodeling client · Google review
BUILT LIKE IT WAS ALWAYS THERE
What goes into a Great House addition
A good addition looks original to the house and works with what is already there. Here is what we handle.
01
Design & layout
Plans that fit your lot, your house and how your family lives.
02
Zoning & setbacks
We check setbacks, lot coverage and HOA rules before you spend on drawings.
03
Engineering
Structural plans for foundations, framing, beams and second-story loads.
04
Permits & inspections
Building, electrical, plumbing and mechanical permits, filed and inspected.
05
Foundation & framing
Footings, foundation and framing tied correctly into the existing house.
06
Roof & exterior match
Roofing, siding and windows that blend with the original home.
07
Systems
Electrical, HVAC and plumbing extended or upgraded to carry the new space.
08
Interior finishes
Drywall, flooring, trim, lighting, bathrooms and closets, move-in ready.
Plus our 1-year workmanship warranty on every addition.
TRANSPARENT PRICING
What an addition costs in McLean & Northern Virginia
Typical ranges. You get an exact, itemized price after a free walk-through.
Bump-out or sunroom
$50,000–$100,000
Small footprint, big difference
✓ Kitchen or family room bump-out
✓ Sunroom or mudroom
✓ Foundation, framing & roof tie-in
✓ About 2–3 months to build
Room addition
$120,000–$250,000
Primary suite or family room
✓ New room with bathroom or closets
✓ Engineering, permits & inspections
✓ Matching roof, siding & windows
✓ About 3–5 months to build
Second-story addition
$250,000–$450,000+
Double your living space
✓ New floor of bedrooms & baths
✓ Structural reinforcement & new stairs
✓ Full roof, exterior & systems work
✓ About 5–8 months to build
Biggest price drivers: square footage, foundation type, plumbing, second-story structure and finish level. See how to plan an addition for lasting value.
HOW IT WORKS
One licensed team, start to finish
We've fully renovated 30+ Northern Virginia homes, additions included. Here's what working with us looks like.
1 · WEEK 1
Free design visit
We walk the house and lot, and talk through space, budget and timing.
2 · WEEKS 2–6
Design & engineering
Floor plans, elevations and structural drawings with an itemized price.
3 · WEEKS 6–12
Permits & ordering
We submit plans to the county, answer reviews and order materials.
4 · 2–8 MONTHS
Build & inspections
Foundation, framing, roof, systems and finishes, with county inspections.
5 · FINAL DAY
Walk-through
Final inspection, then you check every detail before we close out.
Plans, zoning & permits
Additions need drawings, county plan review and inspections at each stage. We prepare the plans and manage the whole process.
Living at home during the build
Most of the work happens outside your current walls. We plan the tie-in day carefully and keep your home weather-tight.
FAQ
Addition questions, answered
How much does a home addition cost in McLean and Northern Virginia?
Bump-outs and sunrooms usually run $50,000–$100,000. A room addition such as a primary suite is typically $120,000–$250,000. Second-story additions run $250,000–$450,000+. You get an exact, itemized price after a free design visit.
Do I need a permit for an addition in Virginia?
Yes. Additions need building permits, county plan review and inspections, plus electrical, plumbing and mechanical permits as needed. We handle all of it.
Is it better to add on or move?
If you like your neighborhood and your lot has room, an addition often costs less than buying, selling and moving, and you get exactly the space you need.
How long does a home addition take?
Design and permits usually take 2–3 months. Construction takes about 2–3 months for a bump-out and 5–8 months for a second story.
Can I live at home during the addition?
Usually, yes. Most work happens outside your existing walls. For second-story additions, some families move out for part of the build. We will tell you up front.
Will the addition match my house?
Yes. We match rooflines, siding, windows and trim so the addition looks like it was always part of the home.
Are you licensed and insured?
Yes. The Great House LLC holds Virginia Class A contractor license #2705197237, is fully insured, and every job includes a 1-year workmanship warranty.
Planning guides: Permit requirements · Planning for value · Garage vs. room addition
Areas we serve: McLean · Vienna · Great Falls · Arlington · Fairfax · Springfield · Alexandria
DESIGN THIS WINTER, BUILD IN SPRING
Ready to add space to your home?
Book a free design visit. Starting plans and permits now puts you at the front of the spring build schedule. Serving McLean, Tysons, Vienna, Great Falls, Falls Church, Arlington, Fairfax, Reston and all of Northern Virginia.