Property additions are the smartest way to get the house you want without packing a single box. If you live in Fairfax, Arlington, Leesburg, or nearby, AZA Builders designs and builds additions that look original to your home and feel made for your life. From kitchen bump outs to full second stories, we handle everything from concept to final inspection so you get more space, more value, and zero surprises.
Ready for a personalized estimate? Call AZA Builders today at (571) 393-2722 or request a free quote.
Why Property Additions Beat Moving
Moving is expensive, disruptive, and you still end up compromising. Property additions give you custom space where you already love to live.
Top benefits for Northern Virginia homeowners
- Space where you need it: add a primary suite, bigger kitchen, or a sunlit family room.
- Better flow: fix choppy layouts with smart reconfiguration, larger openings, and bump outs.
- Higher value: well-planned property additions are among the top ROI projects in our region.
- Stay put: keep your school district, commute, neighbors, and backyard.
- Energy upgrades: new insulation, windows, and HVAC improvements lower monthly bills.
We treat your home as a whole system. Every addition we build ties into your architecture, structure, and utilities cleanly, so it looks like it has always been there.
Types of Property Additions We Build
Every home is different, which is why we start with your goals and site conditions. Here are the most requested property additions we deliver across Northern Virginia.
Room Extensions and Bump Outs
Add square footage to the rooms you use the most. Great for enlarging a kitchen, expanding a living room, or creating a breakfast nook with windows toward the backyard.
Second-Story Additions
Need a lot more space without losing your yard. We add a full level or partial pop-top with new bedrooms, bathrooms, and a modern stair that ties it all together.
Over-Garage Additions
Capture unused volume above your garage for a guest suite, office, or bonus room. We reinforce framing, upgrade the garage roof system, and match exterior finishes.
Primary Suite Additions
Add a calm, quiet retreat with a spacious bedroom, walk-in closet, and spa bath. Smart plumbing and layout planning keep costs efficient and comfort high.
In-Law Suites and ADUs
Create independent living with a bedroom, bath, sitting area, and kitchenette. Perfect for multi-generational living or future rental flexibility where permitted.
Sunrooms and Three-Season Rooms
Bring in light and add living space with walls of glass, skylights, and high-efficiency glazing. We design these property additions for year-round comfort.
Kitchen Extensions
If your kitchen feels tight, a targeted bump out can add pantry storage, a larger island, or a sunny banquette. Seamless tie-in to existing cabinetry and finishes.
Garage Conversions
Turn underused space into a media room, office, or gym. Insulation, subfloor, electrical, and conditioned air make it feel like true living space.
Bathroom Additions
Add a hall bath for guests or a second upstairs bath for the morning rush. Smart routing reduces plumbing runs and speeds inspections.
What Do Property Additions Cost in Northern Virginia
Every site and scope is unique, but here are typical local ranges we see. Your final price depends on size, structure, finishes, and utility work.
- Small bump out or room extension (120–200 sq ft): $65k–$125k
Great for kitchen expansions or family room extensions. - Primary suite addition (250–450 sq ft): $120k–$220k
Bedroom, walk-in closet, and bath with quality finishes. - Over-garage addition (300–600 sq ft): $140k–$260k
Includes structural reinforcement and new roof system. - Full second-story addition (800–1,200+ sq ft): $250k–$450k+
Multiple bedrooms, bathrooms, and stair integration.
Key cost drivers
- Structural engineering, foundation work, and roof tie-ins
- Plumbing and electrical runs, panel upgrades, HVAC capacity
- Exterior matching: brick, siding, windows, roofing
- Finish level: standard vs custom cabinetry, tile, fixtures
- Site access, grading, tree protection, and historic overlays
Want a number for your home and your zip code. [Request a tailored estimate] and we will break down your options line by line.
Our Property Additions Process
We run a clear, predictable process so you always know what is next.
- Consultation and Site Walk
Goals, budget, existing conditions, photos, and measurements. - Feasibility and Preliminary Design
Concepts, rough massing, and 3D visuals so you can react with confidence. - Detailed Design and Selections
Plans, elevations, structural review, finishes, and an itemized scope. - Permits and Approvals
We handle submissions and coordination with Fairfax, Arlington, Loudoun, Prince William and the towns within them. - Pre-Construction
Schedule, mobilization, protection of landscaping and interiors, neighbor notices. - Build
Foundation and framing, exterior envelope, mechanicals, insulation, drywall, finishes. Weekly updates from your project manager. - Final Inspection and Walkthrough
Punch list, owner training on new systems, warranty handoff.
Typical timelines
- Bump out or single room addition: 8 to 14 weeks after permits
- Suite or over-garage addition: 12 to 20 weeks
- Second-story addition: 16 to 28 weeks
We phase work thoughtfully if you plan to remain at home, and we keep dust and disruption under control with proper containment and air filtration.
Permits, Zoning, and Code in Northern Virginia
You do not need to be a code expert. That is our job. AZA Builders secures permits, schedules inspections, and designs to meet or exceed current codes.
We navigate
- Setbacks, lot coverage, height limits, and floor area ratio
- Historic districts and architectural review boards
- Stormwater and grading when foundations expand
- Energy code compliance, insulation, and window U-factors
- Utility service upgrades and panel capacity
Because we build here every day, we know what each jurisdiction expects, which keeps your project moving.
Design That Blends In and Ages Well
The best property additions look like they have always belonged. We align rooflines, match materials, and line up window proportions so the street view feels harmonious. Inside, we balance natural light and privacy, route traffic smarter, and create storage where you never had it.
Popular local design moves
- Brick and siding matches with subtle reveals to show an honest addition line
- Larger cased openings to remove the “step up” feeling between old and new
- Laundry relocations to free up prime square footage
- Energy efficient windows, dense-pack insulation, and quiet HVAC zoning
Three Local Case Studies
Fairfax Kitchen Bump Out, 160 sq ft
The problem: a tight U-shaped kitchen with no island.
Our solution: a rear bump out added 4 feet of depth, a pantry wall, larger island seating, and a bigger slider to the patio.
The result: brighter mornings and easier hosting, with a measured energy drop after new windows and insulation.
Leesburg Over-Garage Suite, 420 sq ft
The problem: guests had to use a kid’s bedroom.
Our solution: new floor system, insulated dormers, dedicated bath with a tiled shower, and a quiet mini-split zone.
The result: real hospitality space that doubles as a home office, finished to match the home’s Colonial style.
Arlington Second-Story Addition, 1,050 sq ft
The problem: a growing family in a bungalow with no upstairs bedrooms.
Our solution: added three bedrooms, two baths, and a new stair that lands in the existing hall, keeping main-floor flow intact.
The result: space to grow without leaving the neighborhood they love.
How to Choose the Right Builder for Property Additions
Green flags
- Active Virginia license and insurance, written contract and scope
- Clear timeline with milestones and weekly communication
- Local references and project photos you can verify
- Permit handling, engineering coordination, and warranty in writing
Red flags
- Cash only or vague allowances
- No permit plan or “you don’t need one”
- Lowball pricing without detail
- No portfolio of similar additions
With AZA Builders, you get a veteran-owned, licensed, insured team that delivers what we promise and stands behind the work.
Common Questions About Property Additions
What is a property addition, exactly
Expanding your home’s footprint or volume with new livable space that ties into structure, utilities, and finishes so it functions like it was always there.
How much do property additions add to value
Value depends on scope and location, but additional beds and baths are strong drivers in Northern Virginia. We design for livability first, which supports resale.
Can I live at home while you build
Often yes. We phase work, set up dust containment, and keep access routes clear. Larger second-story projects may benefit from a short off-site stay during framing and drywall.
What do I need before we start
A wish list, a realistic budget range, a survey or plat if you have one, and any HOA guidelines. We will guide everything else.
How long does permitting take
It varies by jurisdiction and scope. We submit complete, code-ready plans to speed reviews and keep the schedule honest.
Will my heating and electrical handle the new space
We evaluate capacity and zone systems appropriately. Many projects include panel upgrades and HVAC zoning for comfort and efficiency.
Quick note on the math terms people search
Some folks search for “addition property of equality” and “identity property of addition.” Those are math rules. In construction, property additions simply means adding finished space to your home. If you landed here by accident, we are happy to help with the house kind of addition.
Service Areas
We build property additions across Northern Virginia, including: Gainesville, Haymarket, Fairfax, Arlington, Falls Church, Leesburg, McLean, Fredericksburg, Oakton, Great Falls, Burke, Reston, Centerville, Fairfax Station, and Woodbridge.
Looking for a city-specific page. Ask us about local landing pages for your area.
Why Homeowners Choose AZA Builders
- Veteran-owned, licensed, insured, and local
- Design, selections, permits, and build under one accountable team
- Transparent pricing, weekly updates, and tidy sites
- Craftsmanship that blends new space with your home’s character
- Written warranty and post-completion support
Call to Action
Call us today at (571) 20393-2722
Fill out our Contact Form for a free estimate
Visit our Google Business Profile to see client reviews in Fairfax, Arlington, Leesburg, McLean, and beyond.
Ready to grow your home the right way. Let’s plan a property addition that fits your life, your lot, and your budget. See us on Instagram.
