Addition Builders Near Me — McLean, VA

If you're searching "addition builders near me" from a McLean zip code, you already know what you want: a licensed local contractor who understands Fairfax County permits, can price the job honestly, and will actually finish it. This guide walks McLean homeowners through what a home addition really costs in 2026, how long it takes, and how to vet the builder before you sign.

Why hire a local addition builder in McLean

An addition isn't a kitchen refresh — it touches your foundation, framing, roof, and every mechanical system in the house. Out-of-area "national" remodelers rotate through subcontractors and rarely know Fairfax County's inspectors by name. A local McLean addition builder:

• Has an active Virginia Class A license and $1M+ liability
• Knows the Fairfax County Land Development Services submission process and typical review times
• Understands McLean setbacks, lot coverage, and HOA quirks in Langley and Chesterbrook
• Uses in-house framers instead of day-labor crews
• Can walk your street and show you finished additions nearby

McLean clients consistently push for the highest-end finishes — book-matched stone, custom millwork, Wolf & Sub-Zero appliance packages. Our showroom carries every line they expect.

What "addition" means in McLean

Most McLean homeowners searching for addition builders fall into one of five buckets:

1. Bump-out addition ($45K–$90K)

A 4–8 ft extension off the back or side — usually to enlarge a kitchen, dining area, or primary bath. Fastest permit path in Fairfax County, typically 2–4 months end-to-end.

2. Single-room addition ($85K–$180K)

A full room — bedroom, sunroom, home office, or family room — on a new foundation. 3–5 months once permits are pulled.

3. Primary suite addition ($180K–$300K)

Bedroom + full bath + walk-in closet, usually off the back of the house. This is the most-requested addition in McLean for empty-nesters and multigenerational households. 5–7 months.

4. Second-story addition ($250K–$500K+)

Doubles your square footage on the same footprint. Requires structural engineering, temporary weatherproofing, and often a full electrical panel upgrade. 6–10 months.

5. In-law suite or ADU ($150K–$350K)

Detached or attached suite with its own bath and kitchenette. Fairfax County rules vary — some cities allow full ADUs, others cap them at "accessory living quarters." A local builder will know before you draw a plan.

2026 addition pricing in McLean

Numbers below reflect completed NOVA projects in the last 12 months. McLean runs slightly above the regional average because of labor and material logistics.

Project	Typical Range	Timeline
Bump-out	$45,000 – $90,000	2–4 months
Single-room	$85,000 – $180,000	3–5 months
Primary suite	$180,000 – $300,000	5–7 months
Second-story	$250,000 – $500,000+	6–10 months
In-law / ADU	$150,000 – $350,000	5–8 months

Design and engineering (architect + structural) usually adds $8K–$20K on top and takes 2–4 months before construction can start.

Permits & zoning in McLean

Every addition in McLean requires a permit through Fairfax County Land Development Services. Plan for:

• Zoning review (setbacks, lot coverage, height) — 2–4 weeks
• Building permit review — 4–8 weeks in most of Fairfax County
• HOA approval if applicable — run in parallel, not after
• Inspections — footings, framing, rough-ins, insulation, final

A local addition builder submits permit packages every week and knows which reviewers flag which details. That alone can save you 3–6 weeks.

How to vet an addition builder near you

Before you sign anything, get:

1. Virginia Class A license number (verify at DPOR)
2. Certificate of insurance naming you as certificate holder
3. Three references from McLean-area additions completed in the last 2 years
4. A fixed-price contract — not "time and materials"
5. A written change-order policy — signed, priced, before any deviation
6. A named project manager with a direct cell number
7. A payment schedule tied to milestones, not calendar dates

Walk. Away. From any builder who won't put those in writing.

FAQ

How much does a home addition cost in McLean, VA?

Bump-outs start around $45,000. Single-room additions run $85,000–$180,000. Primary suite additions run $180,000–$300,000. Second-story additions run $250,000+. McLean pricing sits at or slightly above the NOVA average.

How long does an addition take in McLean?

Plan on 4–8 months total. Design and Fairfax County Land Development Services permitting take 2–4 months; construction runs another 3–6 months once demo starts.

Do I need an architect for an addition in Fairfax County?

Yes. Every NOVA jurisdiction — including Fairfax County — requires sealed architectural and structural drawings for additions. A good addition builder includes the design package in the proposal so you're not managing three vendors.

Can I live in my McLean home during the addition?

Almost always yes. The addition is sealed off from the existing house with temporary walls and dust barriers. The 2–3 day "breakthrough" is scheduled near the end.

What warranty should I expect?

A one-year workmanship warranty is standard. Manufacturer warranties on windows, roofing, and HVAC pass through to you separately. Get all warranty terms in writing.

Ready to talk to a local addition builder?

If you want a real price for your McLean addition — not a national-chain estimate — book a free in-home consultation or see all our home addition work. We're licensed Class A, insured, and based in Northern Virginia.

Contact us → · See McLean projects →