Service
Home Additions
From primary-suite bump-outs to two-story rear additions, we match rooflines, sightlines and material rhythm so the new work disappears into the old.
What's included
Built to a higher standard.
Zoning and setback strategy
Feasibility studies before you invest in full drawings.
Structural engineering
Foundations, framing and load paths designed and stamped.
Seamless exteriors
Siding, roofing, trim and window profiles matched to the existing home.
Minimized disruption
Weather-tight staging keeps the existing house sealed and livable.
Timeline
What to expect, week by week.
- 016–12 weeks
Feasibility & design
Zoning review, concept design and engineering.
- 028–16 weeks
Permitting
County review, sediment control and permit issuance.
- 034–8 months
Construction
Foundation, framing, dry-in, systems and finishes.
- 042 weeks
Closeout
Final inspections, punch list and warranty.
Gallery
Recent work.
Client reviews
What homeowners say.
“The 3D design was startlingly accurate — the finished kitchen looks exactly like what we approved. Our project manager sent a written update every Friday for four months.”
FAQs
Questions, answered.
How much does an addition cost?
Additions in our market typically run $400–$650 per square foot depending on structure, systems and finish level.
Will an addition fit on my lot?
We start with a zoning and setback feasibility review before any design work begins.
How long does permitting take?
Plan on two to four months for additions in Montgomery County; DC varies by ward and historic status.
Let's begin
Ready to start your home additions?
Every project starts with a short conversation about your space, your timing and your investment range.
We respond to every consultation request within one business day.