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Published area referenceTransparent allowances

School Construction Cost Calculator

Published reference: USD 230.36–239.21 per ft² (USD 2,479.57–2,574.84 per m²), Gordian / BD+C: K-12 school construction costs for 2024, 2024 source table.

The cost to build a school runs $230–$239 per square foot nationally by 2024 model (Gordian/RSMeans via BD+C): $239.21 for elementary, $230.36 for junior high, and $233.16 for high school. Choose the matching model and enter your floor area below; the published 2024 reference is not adjusted to current prices.

Who it's for: architects, owners, and estimators who need to apply a published reference or their own dated school construction rate using transparent arithmetic — not a market forecast — for a specific quantity and allowance set, at feasibility or schematic design.

School construction cost per m² or ft²

Choose a published reference, enter matching floor area, and calculate. Source facts travel with the result; you do not need to retype them.

Compare published rates and source details

Calculate from a published area rate

Choose a published reference; no rate or location is selected automatically.

Choose a reference to review its period and cost scope before calculating.

Use the selected source definition of floor area. Do not enter room, bed or seat counts.

Reference arithmetic, not a project budget. No current-price adjustment, currency conversion or extra allowance is applied. A rate's cost inclusions remain those of its source.

Have a project-specific rate or additional allowances? Use the separate manual calculation.

Calculate with your chosen rate

1. Quantity, unit and rate
2. Benchmark source and scope

Use the precision stated by the source: a year (2025), calendar quarter (2025-Q3), month (2025-08) or day (2025-08-15). Do not invent a month or copy the publication edition into this field.

State whether fees, contingency, land, external works, taxes and other costs are included. Unknown is not the same as excluded. Enter only additional, non-overlapping allowances.

3. Additional allowances
Scenario, not a forecast
Total = quantity × entered rate × (1 + entered allowances). Align currency, base date, scope, measurement basis, location, taxes, escalation and exclusions before comparing scenarios.

Published area rates and sources

Selected references in USD — converted area units, not new market observations
Reference and periodPublished / ft²Converted / m²
Elementary school — U.S. national model (2024)2024 source tableUSD 239.21≈ USD 2,574.84
Junior high school — U.S. national model (2024)2024 source tableUSD 230.36≈ USD 2,479.57
High school — U.S. national model (2024)2024 source tableUSD 233.16≈ USD 2,509.71
Method, source scope and period

1 ft² = 0.09290304 m². Divide a USD/ft² rate by this factor for USD/m². Divide m² area by the same factor before multiplying by the original rate. Only displayed values are rounded.

NIST area conversion definition. Unit conversion does not reconcile gross, net, finished or rentable area definitions.

Elementary school — U.S. national model (2024)

U.S. national school-model averages with green-building considerations; detailed cost inclusions are not itemized. Use floor area measured on the source model basis. Gross, net and rentable areas are not interchangeable. These are historical models, not 2026 quotes. Universities, seat counts and local premiums are not inferred.

Gordian / BD+C: K-12 school construction costs for 2024 · publication date: 2024-02-22 · period: 2024 source table. Re-read 2026-10-12.

Junior high school — U.S. national model (2024)

U.S. national school-model averages with green-building considerations; detailed cost inclusions are not itemized. Use floor area measured on the source model basis. Gross, net and rentable areas are not interchangeable. These are historical models, not 2026 quotes. Universities, seat counts and local premiums are not inferred.

Gordian / BD+C: K-12 school construction costs for 2024 · publication date: 2024-02-22 · period: 2024 source table. Re-read 2026-10-12.

High school — U.S. national model (2024)

U.S. national school-model averages with green-building considerations; detailed cost inclusions are not itemized. Use floor area measured on the source model basis. Gross, net and rentable areas are not interchangeable. These are historical models, not 2026 quotes. Universities, seat counts and local premiums are not inferred.

Gordian / BD+C: K-12 school construction costs for 2024 · publication date: 2024-02-22 · period: 2024 source table. Re-read 2026-10-12.

Selected figures read 2026-09-11. That check date is not a cost observation date. Missing inclusions remain unknown, not excluded; do not automatically add land, fees, FF&E, taxes or contingency.

Two source endpoints are separate scenarios, not a statistical interval. No bed, seat or room count is converted to area.

Published benchmarks

K-12 hard construction cost per square foot: RLB metro low–high bands and the RSMeans national model. Pick a row to use it as the entered rate, or enter your own.

BenchmarkValueUnitEditionScopeSource
Elementary school, national model (green-building spec)239.21$/sf2024US national averageGordian RSMeans data, via Building Design + Construction · read 2026-10-12
Junior high / middle school, national model230.36$/sf2024US national averageGordian RSMeans data, via Building Design + Construction · read 2026-10-12
High school, national model233.16$/sf2024US national averageGordian RSMeans data, via Building Design + Construction · read 2026-10-12
Elementary school, most costly metro320.96$/sf2024New York City, NYGordian RSMeans data, via Building Design + Construction · read 2026-10-12
Elementary school, least costly metro197.83$/sf2024Houston, TXGordian RSMeans data, via Building Design + Construction · read 2026-10-12
Elementary school280–395$/sfQ1 2026Austin, TXRLB Quarterly Construction Cost Report, North America, Q1 2026
High school315–480$/sfQ1 2026Austin, TXRLB Quarterly Construction Cost Report, North America, Q1 2026
Elementary school320–480$/sfQ1 2026Chicago, ILRLB Quarterly Construction Cost Report, North America, Q1 2026
High school375–515$/sfQ1 2026Chicago, ILRLB Quarterly Construction Cost Report, North America, Q1 2026
Elementary school420–550$/sfQ1 2026Los Angeles, CARLB Quarterly Construction Cost Report, North America, Q1 2026
High school360–635$/sfQ1 2026Los Angeles, CARLB Quarterly Construction Cost Report, North America, Q1 2026
Elementary school635–750$/sfQ1 2026Boston, MARLB Quarterly Construction Cost Report, North America, Q1 2026
High school700–850$/sfQ1 2026Boston, MARLB Quarterly Construction Cost Report, North America, Q1 2026
Elementary school565–710$/sfQ1 2026New York, NYRLB Quarterly Construction Cost Report, North America, Q1 2026
High school610–785$/sfQ1 2026New York, NYRLB Quarterly Construction Cost Report, North America, Q1 2026

Each button selects the stated displayed value, not a typical rate, statistical confidence interval, or recommendation. Inequality bounds are reference-only. Figures are as published on the linked page; check edition, unit, scope and what the rate includes before using one. When a base-date field is present, enter its verified date yourself; a publication year is not a benchmark base month.

How to use this calculator

1
Enter gross square footage for your school level
Every row on this page — the RSMeans/BDC national model and metro figures, plus the RLB city ranges — is priced per square foot, split by elementary, junior high/middle, and high school.
2
Match a benchmark to the school level and market
The BDC/RSMeans national model gives elementary, middle, and high school rates plus the most and least costly metro (New York City and Houston). RLB gives elementary and high school ranges for Austin, Chicago, Los Angeles, Boston, and New York.
3
Enter allowances and reconcile
Add fees, contingency, and other allowances not already inside the benchmark rate, then compare the total against a project-specific quote rather than treating it as a forecast.

The formula

Base amount = entered quantity × entered rate. Total = base amount × (1 + fees% + contingency% + other allowance%).

Worked example

Example
Illustrative arithmetic only: 1,000 square feet at a user-supplied rate of 200 per unit gives a base amount of 200,000. If the verified base rate excludes the entered 10% additional allowance, the scenario total is 220,000 in that same currency. This is not a published market benchmark.

When this estimate will be off

  • All school benchmark rows are priced per square foot; no per-classroom or per-student rate is published on this page.
  • RLB city rows cover elementary and high school only — no junior high/middle-school row exists for Austin, Chicago, Los Angeles, Boston, or New York.
  • Benchmark rows on this page are sourced reference points, not market data for your project; no currency conversion is supplied.
  • No cost-plan, procurement, escalation, tax, finance, schedule, risk, or professional adequacy determination is made.

Frequently asked questions

Yes. Choose one of the published area references above and enter floor area in m² or ft². Its source, period and scope stay attached to the result. No unlisted model, local premium, current-price adjustment or complete project budget is inferred.

In the 2024 Gordian / Building Design + Construction national models (published 22 February 2024), an elementary school runs $239.21 per square foot, a junior high school $230.36 and a high school $233.16. For elementary schools the same source puts New York at $320.96 and Houston at $197.83 per square foot, so the market matters more than the school level. Multiply the matching rate by gross floor area, then add fees, contingency and site work only if the rate leaves them out; the 2024 figures are not adjusted to today’s prices.

The 2024 national high-school model is $233.16 per square foot (Gordian / BD+C). The RLB city ranges listed above are higher in the large metros, for example $375–$515 per square foot in Chicago and $700–$850 in Boston, because they price a specific market; use the row that matches your location and base date.

No. Room, bed and seat counts are not areas. Only the published area-reference form converts m² and ft², preserving the same area. The separate manual form needs a quantity and rate already expressed in matching units; no currency conversion is performed.

No. It applies transparent arithmetic to a user-supplied benchmark and allowances — it does not predict bids, escalation, or final cost.

Use a dated source for the same market, currency, measurement basis, scope, and project type as the school construction project you're estimating. The benchmark table above lists sourced reference points, not market data for your project.

So nothing already included in the base rate is counted twice. Enter only allowances not already reflected in the benchmark rate itself.

Only to the extent those costs are already included in your verified base rate or explicit additional allowances. This worksheet does not separately derive or validate escalation, taxes, finance, procurement risk, or professional adequacy.

Sources

  • User-identified cost source — must provide the rate, market, date, currency, measurement basis, scope, inclusions and exclusions

This free School Construction Cost Calculator is built and maintained by DataDrivenAEC, using the relevant codes and standards. It does not substitute for professional judgment.