Cost to Rebuild a House Calculator
Estimate the replacement cost to rebuild a house from its footprint and your material and labor rates per square foot — useful for insurance planning.
How this calculator works
This calculator estimates what it would cost to rebuild a house from scratch, based on its footprint. You enter the house’s length and width, and it multiplies that area by a material rate and a labor rate, both priced per square foot, to get a total replacement cost.
Formula: Total cost = house area (length × width) × material rate per sq ft + house area × labor rate per sq ft.
Worked example
A 40 ft × 30 ft footprint, $130/sq ft material, $40/sq ft labor:
- House area: 40 × 30 = 1,200 sq ft
- Material cost: 1,200 × $130 = $156,000
- Labor cost: 1,200 × $40 = $48,000
- Total estimated cost: $204,000
Notes
This “replacement cost” figure — what it costs to rebuild the structure — is often different from a home’s market value. Market value includes the land and its location, while replacement cost only covers rebuilding the physical house, so the two numbers can diverge significantly depending on where the home sits.
Homeowners insurance dwelling coverage should be based on replacement cost, not sale price. Since rebuilding a home doesn’t require repurchasing the land beneath it, using market value to set coverage can leave a homeowner underinsured if the house needs to be rebuilt from the ground up.
How to use
Measure your house’s footprint (length times width) and enter material and labor rates per square foot that match your home’s construction quality. Use the total as a starting point for setting or reviewing homeowners insurance dwelling coverage, not as a market value estimate.
Estimates only. Actual cost depends on your region, material choice, and site conditions — get a contractor quote before budgeting.
Frequently asked questions
What does this rebuild cost estimate include?
It covers material and labor priced per square foot of house footprint, giving a rough total for rebuilding the structure from the ground up. It doesn't include site work like demolition, land clearing, or permits, which are typically separate line items on a rebuild budget.
Is rebuild cost the same as my home's market value?
No. This 'replacement cost' figure is what it would cost to rebuild the physical structure, while market value also includes the value of the land and its location. Two homes with identical square footage can have very different market values depending on where they sit, even though their rebuild cost is similar.
Should my homeowners insurance be based on rebuild cost or sale price?
Homeowners insurance dwelling coverage should be based on replacement cost, not sale price. If you insure only up to your home's market value, you could be underinsured in a total loss, since rebuilding doesn't require repurchasing the land underneath the house.
Why do material and labor rates vary so much by house type?
A custom-built home with high-end finishes costs more per square foot to rebuild than a basic production-built home, since material grade and labor complexity both scale with the level of finish. Enter rates that match your home's actual construction quality rather than a generic average.
Estimates only. Verify quantities with your supplier before purchasing.