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BarnCostHub
5 verified Illinois projects

Illinois pole barn costs, from real projects.

What owners and builders actually paid for pole barns, barndominiums, and metal buildings in Illinois — $22.22 to $169.50 per square foot across 5 moderated submissions.

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The numbers

Illinois by the data.

Computed from every approved Illinois entry in the What I Paid database. Updated automatically as new projects are approved.

Median cost / sq ft

$62.50

across 5 projects

Verified projects

5

Average cost / sq ft

$69.72

Newest build year

2026

Cheapest project

$22.22/sqft

$16,000 · Springfield

Most expensive

$169.50/sqft

$339,000 · Mattoon

Most common type

Pole Barn

40% of submissions

Average footprint

1,677 sq ft

Cost per square foot, distributed

Every verified Illinois project, bucketed by $/sqft. The spread is mostly finish level.

How Illinois compares nearby

Median $/sqft from verified projects in Illinois and its neighbors.

Small samples swing — compare medians, not single projects.

Recent projects

The latest Illinois submissions.

The five most recently approved projects — city, type, size, and what the owner reported paying.

Latest approved building projects in Illinois
City Type Size Total cost $ / sq ft Built
Galesburg Post Frame Building 40×60 (2,400 sq ft) $154,500 $64.38 2021
Effingham Metal Building 40×60 (2,400 sq ft) $150,000 $62.50 2021
Mattoon Barndominium 40×50 (2,000 sq ft) $339,000 $169.50 2026
Quincy Pole Barn 24×36 (864 sq ft) $25,900 $29.98 2025
Springfield Pole Barn 24×30 (720 sq ft) $16,000 $22.22 2025
See all 5 Illinois projects

State insights

What the Illinois data says.

Every insight below is generated from the submissions themselves — no estimates, no editorializing.

  • Illinois currently has 5 verified projects in the What I Paid database.
  • Illinois projects range from $22.22/sqft to $169.50/sqft.
  • Pole Barns represent 40% of Illinois submissions (2 of 5).
  • The Illinois median of $62.50/sqft runs about 64% above the national median of $38.13/sqft.
  • The average reported footprint in Illinois is 1,677 sq ft, and the most recent build year on record is 2026.
  • Reported Illinois totals run from $16,000 (24×30 pole barn in Springfield) up to $339,000 (40×50 barndominium in Mattoon).
Plan your build

Estimate your Illinois pole barn cost.

The calculator applies Illinois's labor and material cost index automatically, then checks your estimate against the real projects on this page. A 40×60 pole-barn shell in Illinois models at $39,600 – $79,200.

Open the calculator Get a Illinois cost report

The detailed PDF report is free — run your estimate, then download it from the results card.

40×60 shell, modeled for Illinois

$39,600 – $79,200

$16.50 – $33.00/sqft · erected post-frame shell

Real Illinois projects median: $62.50/sqft — finish level explains most of the spread.

FAQ

Illinois cost questions, answered by the data.

Answers computed from the verified projects above.

How much does a pole barn cost in Illinois?
Across the 5 verified Illinois projects in our What I Paid database, costs run from $22.22 to $169.50 per square foot, with a median of $62.50/sqft. Where your project lands depends mostly on finish level — a bare shell costs a fraction of a fully finished build.

What did real Illinois projects actually cost?
The cheapest reported Illinois project is a 24×30 pole barn in Springfield at $16,000 ($22.22/sqft). The most expensive is a 40×50 barndominium in Mattoon at $339,000 ($169.50/sqft).

Is building in Illinois cheaper than the national average?
The Illinois median is $62.50/sqft versus a national median of $38.13/sqft across 101 projects in 25 states. Local labor rates, site work, and engineering loads (snow, wind) drive the difference — our calculator applies Illinois's cost index automatically.

What do people build most in Illinois?
Pole Barns are the most common submission in Illinois at 40% of entries. The average reported footprint is 1,677 sq ft, and the newest build year on record is 2026.

Where do these numbers come from?
Every figure on this page is computed from owner- and builder-submitted projects in our What I Paid database. Each entry is reviewed by a moderator for plausibility before publication, and the statistics update automatically as new projects are approved.

Keep exploring

Related cost guides.

Nearby states with real data

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Free PDF report

Get a detailed Illinois cost report.

Run your numbers with Illinois pricing applied, then download the full breakdown — materials, labor, foundation, and all three finish tiers.

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