Renovation Budget Per Sqft
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It's the total renovation budget divided by the square footage being renovated, and should include materials, labor, permits, and a contingency reserve — not just the contractor's base quote. Leaving out permits and contingency is a common way this figure gets understated.

A cosmetic refresh (paint, flooring, fixtures) might run a modest amount per square foot, while a full gut renovation involving structural, electrical, and plumbing work can cost several times more, since it touches systems behind the walls rather than just surface finishes. Match your per-square-foot benchmark to the actual scope of work, not a generic 'renovation' average.

Yes, significantly — labor costs, permit fees, and material costs vary widely by metro area and even within regions of the same state, so a per-square-foot figure from a national average or a different market can be off by a wide margin. Get local contractor quotes rather than relying solely on a general benchmark.

In practice, yes — kitchens and bathrooms cost dramatically more per square foot to renovate than bedrooms or living areas because of plumbing, electrical, cabinetry, and fixture costs concentrated in a small footprint. A blended whole-house average can understate the cost if your project is kitchen- or bathroom-heavy.

A common guideline is 10-20% contingency for straightforward renovations and 20-30% or more for older homes or full structural work, where hidden issues (outdated wiring, water damage, foundation problems) are more likely to surface once walls are opened.