Budget planning guide

Room Addition cost in Columbus, OH

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

Starter-scope range

$8,340$11,770

Planning midpoint: $9,810

The planning model keeps this market close to its national starter assumptions.

What the model includes

Starter scope and assumptions

Adjust quantities for your project

Foundation

200 sq ft × $13.8

$2,760

Framing

200 sq ft × $11.04

$2,210

Roofing

220 sq ft × $7.36

$1,620

Electrical & Plumbing

1 lump sum × $3,220

$3,220

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.