Custom Home Additions in Northern Virginia
Expand your living space. Add real value to your home. DC Metro Construction designs and builds custom home additions in Virginia, Maryland & Washington DC — Class A licensed, fully permitted, zero shortcuts.
What Is a Custom Home Addition?
A custom home addition is a permanent structural extension to your existing home — whether that’s adding a new room, a second floor, an expanded kitchen, a sunroom, or a converted garage.
Unlike renovating existing space, an addition gives you entirely new square footage — and when done right by a licensed contractor, it significantly increases your property value.
At DC Metro Construction, every addition is designed to match your home’s existing architecture, materials, and finish standards. We handle everything: permits, foundation, framing, electrical, plumbing rough-in, insulation, drywall, and finish work.
Types of Home Additions We Build
Every project is custom. Here’s what we build most often for homeowners across Northern Virginia, Maryland, and DC.
Room Addition
Need an extra bedroom, home office, playroom, or living area? We extend your footprint with a fully integrated room that feels like it was always there.
Second Story Addition
Double your square footage without sacrificing your yard. We build full or partial second stories on existing single-story homes — fully engineered and permitted.
Garage Conversion
Convert your attached or detached garage into livable space: a guest suite, gym, studio, or rental unit. We handle insulation, HVAC, electrical, and finish work.
Bump-Out Addition
Smaller projects that add 2–15 feet to an existing room — perfect for expanding a kitchen, bathroom, or bedroom without a full addition build.
Sunroom / Screened Porch
Bring the outdoors in. We design and build three-season sunrooms, four-season enclosures, and screened porches that maximize your livable space.
In-Law Suite / ADU
Add a self-contained living unit for family, guests, or rental income. We build ADUs that meet all local zoning codes for Northern Virginia and Maryland.
Class A Licensed
Virginia, Maryland & DC licensed and fully insured. We pull all permits — no shortcuts.
Design-to-Build
We plan your addition from blueprints to final walkthrough. One team, zero gaps.
Fully Permitted
Every addition is code-compliant and fully permitted. No liens, no hidden violations.
Fixed Pricing
Detailed written contracts and fixed-price quotes. No surprise costs mid-project.
How We Work
A simple, transparent process — from the first call to the final walkthrough.
1
Free Estimate & Consultation
We visit your home, understand your goals, review your space, and provide a detailed written estimate — no pressure, no obligation.
2
Design & Permitting
Our team prepares architectural drawings and handles all permit applications with your local municipality — Virginia, Maryland, or DC.
3
Construction
Our licensed crews build your addition to code. You get weekly progress updates and a dedicated project manager from day one to completion.
4
Final Inspection & Walkthrough
We pass all inspections, complete the punch list, and walk you through every detail. We don’t close out until you’re fully satisfied.
Our Work
Real home additions completed by DC Metro Construction across Northern Virginia, Maryland & DC.
Common Questions
How long does a home addition take?
Most room additions take 8–16 weeks depending on size and complexity. Second-story additions typically run 12–20 weeks. We give you a firm timeline before any work begins.
Do I need a permit for a home addition?
Yes — all structural additions in Virginia, Maryland, and DC require building permits. We handle the entire permitting process so you don’t have to navigate county offices.
How much does a home addition cost?
Most room additions in the DMV range from $150–$300 per square foot depending on finishes and scope. We provide detailed, fixed-price quotes after your consultation.
Can you match my home's existing exterior?
Yes. Matching existing siding, rooflines, trim, and architectural details is a core part of what we do. Your addition should look like it was always part of the original home.
What Our Clients Say
Real results from real homeowners across Northern Virginia, Maryland & DC.
DC Metro added a full second story to our home. The process was smooth from permits to final inspection. Freddy was on-site constantly and the quality of work is outstanding.
We needed an extra bedroom for our growing family. DC Metro designed and built a beautiful room addition that looks like it was always part of the original house.
They built a complete in-law suite in our basement with a separate entrance. Fully permitted, up to code, and done in 10 weeks. Incredible value.
Serving the Greater DMV Area
DC Metro Construction serves homeowners and businesses across Virginia, Maryland & Washington DC. Class A licensed and fully insured wherever we work.
Northern Virginia
Maryland
Washington DC
Ready to Add Space to Your Home?
Get a free, no-obligation estimate from DC Metro Construction. We serve Northern Virginia, Maryland & Washington DC — Class A licensed, fully insured.