Additions & ADUs · Northern Virginia
More space, built with a clear plan.
Additions and accessory dwelling units bring permits, structure, and new systems together. We manage that complexity from planning to final inspection.
What we build
New space that belongs to the house.
Planned, permitted, and built to connect cleanly with the existing home.
Rear & side additions
More room for the way your household lives.
Accessory dwelling units
Independent living space on your property.
Connecting old & new
Structural reconfiguration that ties new space into the existing home.
Matched finishes
Exterior finishes matched to the original home.
Projects that need a reset
When a project needs a new owner.
Some projects reach us half-finished. We assess what’s in place honestly, fix what needs fixing, and finish to a clear standard.
“Lumen Homes didn’t just finish the project. They fixed real issues, corrected inherited mistakes, and ultimately delivered a completed ADU that exceeded our expectations.”
Wayne E. · ADU project · Thumbtack, Jan 9, 2026
How we work
A professional process from start to finish.
Clear ownership and dependable communication from the first conversation through warranty support.
Scope & fit
Site, goals, and a realistic investment range.
Plans & approvals
Plans, permits, and schedule aligned.
Construction & inspections
Structure, systems, and inspections coordinated.
Finish & warranty
Final review, details resolved, warranty support.
Explore
Services and communities we serve.
Service area: Fairfax County · Arlington County · Loudoun County · Fauquier County (Middleburg, The Plains, Warrenton) · City of Alexandria · City of Falls Church
Start with a straightforward conversation
Thinking about adding space?
Tell our team the project type and location. We’ll confirm whether we’re a good fit and explain the next step—without pressure.
Schedule a consultation
Send the project type, ZIP code, and a short description. Our office will respond within one business day.
Office: 1440 N Edgewood St, Floor 4 #9, Arlington, VA 22201 · Visits by appointment