An addition touches every trade at once — foundation, framing, roofing, siding, plumbing, electrical, HVAC, and finish. That's why the price per square foot is higher than new construction.
Realistic 2026 pricing
Most Capital Region additions land $250-$450 per square foot fully finished. A 400 sq ft family room typically runs $110,000-$180,000. A master suite with a bathroom runs higher because of the plumbing and tile.
The process
Site visit and scope, then drawings and structural engineering, then a fixed-price contract, then permitting. Actual construction usually starts 6-10 weeks after you sign, because of design and municipal review.
Timeline on site
Foundation and framing 3-5 weeks, dry-in and mechanicals 3-4 weeks, insulation through finish 4-7 weeks. Total 8-16 weeks depending on size and finishes.
Can you live there during construction?
Almost always. We seal off the work area with dust barriers, protect flooring, and keep utilities running. The tie-in to the existing house is the only genuinely disruptive stretch, usually a few days.
Frequently asked questions
- Do I need architectural drawings?
- Yes for anything structural. We coordinate the drawings and engineering so you have one point of contact.
- Will an addition raise my taxes?
- Yes — added assessed square footage generally raises the assessment. Factor it into the budget.
