House Construction Cost Calculator: Budget Every Build Stage
Most new US houses cost a median of $153 to $166 per square foot to build, based on NAHB's analysis of 2024 Census starts. A 2,000 sq ft house lands near $306,000 to $332,000 at those medians. Use the calculator below to split your own total across the eight NAHB build stages.
- Updated October 2026
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House Construction Cost Calculator
Enter your floor area and pick a cost basis: the $153 spec median, the $166 custom median, or your own rate per square foot. The calculator multiplies the two, then splits the total across NAHB's eight build stages. It runs in your browser and stores nothing.
Use heated and cooled living area. Allowed 400 to 10,000 sq ft.
Construction cost estimate
$332,000
2,000 sq ft at $166 per sq ft. An estimate, not a bid.
| Build stage | Share | Amount |
|---|---|---|
| Interior finishes | 24.1% | $80,012 |
| Major system rough-ins | 19.2% | $63,744 |
| Framing | 16.6% | $55,112 |
| Exterior finishes | 13.4% | $44,488 |
| Foundations | 10.5% | $34,860 |
| Site work | 7.6% | $25,232 |
| Final steps | 6.5% | $21,580 |
| Other | 2.1% | $6,972 |
| Total | 100.0% | $332,000 |
The result is a construction cost estimate at a national median, not a bid. It leaves out the lines in the price section below. For a result by ZIP code, use the construction cost calculator. Once you hold a quote, switch to "My own rate" and enter it. Not sure of your floor area? The square footage calculator totals it room by room.
Spec home and custom home presets
| Basis | Median per sq ft, 2024 starts | Total on 2,000 sq ft |
|---|---|---|
| Spec home, US | $153 | $306,000 |
| Custom home, US | $166 | $332,000 |
| Difference | $13 | $26,000 |
Source: NAHB, How Do Median Square-Foot Prices Differ by Region?, October 8, 2025. Totals are arithmetic: 2,000 x $153 and 2,000 x $166.
House Construction Cost per Square Foot: The National Starting Point
NAHB's analysis of Survey of Construction data puts the national median price at $166 per square foot for custom homes and $153 for spec homes started in 2024. Half of custom homes in New England cost above $190, while half in the East South Central division cost $129 or lower.
These are medians of price per square foot of floor area for single-family detached homes started in 2024. NAHB's page does not say whether land is included in the custom figure, so read the number as a starting rate and not a bid. On this page, construction cost means the cost to put the house up. It is not the sale price and not a loan amount.
For a rate that reflects your ZIP code, use the construction price calculator. This page does not repeat its numbers.
Median price per square foot by Census division
| Market and division | Median per sq ft, 2024 starts | Note from NAHB |
|---|---|---|
| US custom (contractor-built) | $166 | 2023: $162 |
| US spec | $153 | 2023: $150; excludes record-high improved lot values |
| Middle Atlantic, custom | $188 | |
| East North Central, custom | $186 | |
| Pacific, custom | $167 | |
| Mountain, custom | $169 or higher | Half of homes at or above |
| New England, custom | Above $190 | Half of homes above |
| West South Central, custom | $138 or lower | Half of homes at or below |
| East South Central, custom | $129 or lower | Half of homes at or below |
Source: NAHB, How Do Median Square-Foot Prices Differ by Region?, October 8, 2025. Survey of Construction, homes started in 2024.
House Construction Cost by Build Stage
NAHB's 2024 survey splits construction cost into eight stages. Interior finishes take the largest share at 24.1%, followed by major system rough-ins at 19.2% and framing at 16.6%. On a $332,000 build, those three stages total $198,868, which is 59.9% of the budget.
| Build stage (NAHB, 2024) | Share of construction cost | Example on $332,000 |
|---|---|---|
| Interior finishes | 24.1% | $80,012 |
| Major system rough-ins | 19.2% | $63,744 |
| Framing | 16.6% | $55,112 |
| Exterior finishes | 13.4% | $44,488 |
| Foundations | 10.5% | $34,860 |
| Site work | 7.6% | $25,232 |
| Final steps | 6.5% | $21,580 |
| Other | 2.1% | $6,972 |
| Total | 100.0% | $332,000 |
Source: NAHB Cost of Construction Survey, 2024 results, published January 2025 (eyeonhousing.org). The example column is arithmetic: 2,000 sq ft x $166 = $332,000, then each share applied, rounded to the nearest dollar.
The shares are national averages for builders who answered the survey. A house with a basement, a steep lot or a complex roofline will shift the mix. Compare each stage in a quote with the share column and ask about any line that sits far from it. This page splits cost by build stage, not by labor and material. For that split, get a local bid.
For quantities behind single stages, use the framing calculator or the concrete cost calculator.
What a Construction Estimate Leaves Out of the Price
Construction cost is not the full price of a house. In NAHB's 2024 survey of builders, construction was 64.4% of the average new-home price. The rest was finished lot, builder profit, overhead, sales commission, financing, and marketing. Divide a construction estimate by 0.644 to see the implied builder-sold price.
The seven lines of a builder-sold price
| Line of the price (builder-sold new home) | Share of price, 2024 | 2022 |
|---|---|---|
| Construction costs | 64.4% | 60.8% |
| Finished lot | 13.7% | 17.8% |
| Builder profit | 11.0% | 10.1% |
| Overhead and general expenses | 5.7% | 5.1% |
| Sales commission | 2.8% | Lower in 2024; 2022 figure not stated |
| Financing costs | 1.5% | Lower in 2024; 2022 figure not stated |
| Marketing costs | 0.8% | About unchanged; 2022 figure not stated |
Source: NAHB Cost of Construction Survey, 2024 results (eyeonhousing.org, January 23, 2025). The seven lines add to 99.9% because of rounding.
The survey covers builders selling new homes. If you buy land separately and hire the trades yourself, the lot line becomes the price of your land, not a share of a price.
Here is the conversion once. $332,000 divided by 0.644 is about $515,528, the implied builder-sold price. Read it as an illustration for builder-sold homes, not a forecast.
The items owners most often forget sit outside the construction line: lot, profit, overhead, commission, financing and marketing, plus the effects Home-Cost.com lists as excluded from its own estimate, which are ZIP code, basement costs, material quality and design complexity.
Sources: NAHB Cost of Construction Survey, 2024; Home-Cost.com, Home Construction Cost Per SF by State, updated July 29, 2025.
General Contractor or Owner-Builder: What Changes in the Budget
A general contractor's price includes profit and overhead on top of trade and material costs. NAHB's 2024 survey puts builder profit at 11.0% and overhead at 5.7% of a new home's price. Building it yourself removes the profit line, not the cost of scheduling and supervising the trades.
Profit and overhead together are 16.7% of the price in the 2024 survey (11.0% + 5.7%). On the $515,528 implied price that is about $86,100. That is an illustration. The sources do not measure what an owner-builder saves, so this page gives no savings figure. Read about each role in the glossary: general contractor and owner-builder.
Three questions to put in a bid request
- What does the price include, stage by stage?
- What does it exclude?
- How are change orders priced?
To score several bids side by side, use the contractor comparison calculator.
Worked Example: Check a Bid Against the Stage Shares
A 2,000 sq ft custom house at $166 per square foot gives a $332,000 construction budget. Foundations should land near $34,860 and framing near $55,112if the build follows NAHB's national mix. A bid that puts framing at 25% of the total, or $83,000, deserves a line-item question before you sign.
- Take the bid total. Here it is $332,000.
- Divide each stage line by the total. Framing at $83,000 divided by $332,000 is 25.0%.
- Compare it with the share table. Framing is 16.6% in the NAHB mix, so 25.0% is 8.4 points higher. Ask what the line includes.
A gap is a reason to ask, not proof of a mistake: the mix shifts with the lot and the design. More answers follow in the questions below.
Sources, Method and Last Verified
This page uses NAHB's Cost of Construction Survey, 2024 results, published January 2025, for stage and price shares. It uses NAHB's analysis of Survey of Construction data, published October 8, 2025, for the per-square-foot medians. Figures were last verified on the date shown at the top of the page.
- NAHB, Cost to Construct a Home Rose Significantly Over Last Two Years, nahb.org/blog/2025/01/cost-of-construction-survey-2024, January 29, 2025.
- NAHB Eye on Housing, Cost of Constructing a Home in 2024, eyeonhousing.org/2025/01/cost-of-constructing-a-home-in-2024/, January 23, 2025.
- NAHB, How Do Median Square-Foot Prices Differ by Region?, nahb.org/blog/2025/10/square-foot-prices, October 8, 2025.
- Home-Cost.com, Home Construction Cost Per SF by State, home-cost.com/cost-per-sf-by-state, updated July 29, 2025. Used only for its list of excluded items.
Method: the NAHB shares are applied to your total. The example column is arithmetic. The page makes no claim about any one ZIP code. The calculator gives an estimate, not a bid.
Update log: October 2026. Page published. Figures: NAHB Cost of Construction Survey 2024 (January 2025) and NAHB square-foot price analysis (October 2025). Next scheduled review November 2026.
Reviews: cost calculators · 24 calculators reviewed
Sarah Kim is a Certified Professional Estimator (CPE) with 15 years of construction cost estimation experience. She holds CPE certification from ASPE (member #20-4891). At Turner Construction, she managed material cost analysis on commercial projects ranging from $2M to $45M. At CalcSummit, she writes and verifies all cost estimation and interior finish calculators, updating regional cost benchmarks quarterly using RS Means-informed data.
Full profile →House Construction Cost Questions
Use the house construction cost calculator above with your own floor area, then check each stage of any bid against the NAHB shares. For a local per-square-foot rate, start with the construction price calculator.
Terms used on this page: hard costs, spec home, general contractor and owner-builder.