Site + foundation
Survey, clearing, grading, drainage, excavation, utilities, foundation and conditions below grade.
What does it really cost
to build a house?
Start with the Census 2025 contractor-built benchmark. Then separate the house, site, soft costs, local context and reserve—before a single total hides what is missing.
HOME CONSTRUCTION COST CALCULATOR
Build the range before you trust the total.
Start with the Census contractor-built benchmark, then expose locality, finish, complexity and the costs the contract may leave out.
PLANNING RANGE$346,681–$456,159
Typical planning total $401,420 · $201/sq ft · $2,160/m² including entered additions and reserve.
Range is ±15% around modeled hard construction; entered line items and contingency are held constant.
- Foundation + structurePlanning allocation · not an observed trade quote
- $102,180
- Roof + exteriorPlanning allocation · not an observed trade quote
- $51,090
- Windows + exterior doorsPlanning allocation · not an observed trade quote
- $25,545
- Mechanical, electrical + plumbingPlanning allocation · not an observed trade quote
- $58,388
- Interior finishesPlanning allocation · not an observed trade quote
- $91,232
- Builder overhead + coordinationPlanning allocation · not an observed trade quote
- $36,493
- Contingency reserve
- $36,493
Benchmark: 2025 Census average contract price of $198.33/sq ft for contractor-built single-family houses started. Census says the contract price excludes the improved lot. This planning model is not a builder bid, appraisal, loan decision or promise of final cost.
A house is not one square-foot number.
Use the benchmark as a starting point, then verify every phase against drawings and equal-scope bids.
Structure + dry-in
Framing, roof, exterior walls, windows and exterior doors that create a weather-tight shell.
MEP + enclosure
Mechanical, electrical, plumbing, insulation, air sealing, drywall and required inspections.
Finishes + closeout
Cabinetry, surfaces, fixtures, flooring, paint, testing, corrections and occupancy documentation.
SOURCE + METHOD
What drives this range?
The core calculation multiplies conditioned square feet by the Census 2025 average contract price per square foot, the selected state installation factor, finish factor and complexity factor. It then adds only the separate amounts you enter and a visible contingency.
The low and high results place a ±15% band around modeled hard construction. That band is a HomeCostGrid planning assumption, not a Census confidence interval or prediction.
- Source
- U.S. Census Bureau, Survey of Construction
- Coverage
- U.S. contractor-built single-family houses started in 2025
- Published
- July 1, 2026
- Unit
- Contract price per square foot
- Excluded by source
- Value of improved lot
- Local limitation
- State context is not ZIP-, parcel- or bid-level evidence
COMPARE THE SAME SCOPE
From national benchmark to local decisions.
Updated October 16, 2026. The source period remains 2025; this is not an observed 2026 city-price survey.
City and state
The state selection is a broad installation-factor scenario, not a measured new-build price for your city. Verify soil, flood exposure, site access, utility capacity and the permitting jurisdiction before using a local budget.
Building type
The benchmark covers contractor-built single-family homes. Do not apply it unchanged to apartments, manufactured homes, modular packages or owner-builder projects. Match delivery method, conditioned area, garage and basement scope before comparing proposals.
Materials and labor
The phase allocations in the calculator are planning assumptions, not measured material or labor shares. Ask each builder for quantities, specifications, allowances, labor scope, subcontractor inclusions, escalation terms and overhead so cheaper finishes are not mistaken for cheaper construction.
Permits and total budget
Request a written local fee schedule and check plan review, impact fees, utility taps and inspections. Enter only amounts outside the construction contract. Land, financing and carrying costs need a separate budget; zero entered fees means unknown, not free.
Use the Permit Checker to identify what needs local verification, then use the Contractor Bid Leveler to reconcile exclusions. For renovation rather than a new house, start with the project cost library; compare project scenarios in the Comparison Center. City living costs and state comparisons answer a different question from construction bids.
For metric plans, the calculator converts area without changing the budget: 1 ft² = 0.09290304 m². Divide USD/ft² by 0.09290304 to obtain USD/m²; keep conditioned area separate from garages and unconditioned space.
Before you use the number.
How much does it cost to build a house per square foot?
The 2025 U.S. Census table reports a $171.57 median and $198.33 average contract price per square foot for new contractor-built single-family houses started. Census excludes the value of the improved lot. Your design, site and contract can differ materially.
Does the calculator include land?
No. Land is excluded. Enter site work, design, permits and utility connections only when they are outside the base construction contract, and avoid double-counting an included line.
Why is this a range instead of one exact price?
Before drawings, soil information, bids and local fees exist, one exact number creates false confidence. The range keeps ordinary scope uncertainty visible while preserving your entered costs.
Is this a builder quote or appraisal?
No. It is a planning model for comparing scope and preparing questions. Only address-specific plans, investigations, written bids and official fee information can support a project budget.
NEXT DECISIONS
