New home build cost calculator

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Compare what a new build may really cost once the lot, the chosen build method, and a site-prep / permits allowance are all included.

Use 100 for a baseline region. Enter a higher value for pricier local construction markets.

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All-In New-Build Budget

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Enter lot, square footage, finish, method, and regional assumptions to estimate the all-in cost of a new-home project.

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Example calculations

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Suburban stick-built plan

2,600 sq ft mid-range build with an owned lot purchase

A typical owner-occupant feasibility screen where the lot is known and the question is whether a traditional custom build still fits the target budget.

Result: The all-in total crosses the high-six-figure mark once the lot and site / permit allowance are included.

Builder-grade modular comparison

2,100 sq ft modular build in a baseline market

Useful when the lot is secured and the owner is pressure-testing whether modular delivery creates meaningful budget relief.

Result: Modular often narrows vertical cost and site allowance, but the lot still remains a material share of the full budget.

Luxury prefab feasibility

Smaller footprint with premium finish in a high-cost market

A planning case for owners testing whether a compact prefab still stays efficient after premium finishes and a hotter region are layered in.

Result: Higher finish choices can erase part of the prefab advantage even if the method itself stays cheaper than stick-built.

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