Budget planning guide

Room Addition cost in New York, NY

A transparent starter-scope range for homeowners planning room addition in New York, NY. Review the assumptions, then use the project estimator for your own scope.

Starter-scope range

$13,140$18,550

Planning midpoint: $15,460

The planning model applies a higher regional cost factor for this market.

What the model includes

Starter scope and assumptions

Adjust quantities for your project

Foundation

200 sq ft × $21.75

$4,350

Framing

200 sq ft × $17.4

$3,480

Roofing

220 sq ft × $11.6

$2,550

Electrical & Plumbing

1 lump sum × $5,075

$5,080

This is a budgeting example based on a defined starter scope, not a quote or a live survey of local bids. Actual pricing depends on measurements, site conditions, material choices, permits, contractor availability, and the final scope.