How much does it cost to build in Naperville, IL? (2026)
Construction in the Chicagoland area runs about 10% higher than the national average (cost index 1.10). Here are 2026 ballpark ranges for common projects, scaled to Naperville pricing.
| Project type | Naperville range (2026) |
|---|---|
| New custom single-family home mid-range finishes; land not included | $173–$244/sq ft |
| Accessory dwelling unit (ADU) higher per-foot cost at small scale | $243–$343/sq ft |
| Whole-home renovation varies widely with scope | $136–$191/sq ft |
| Commercial tenant improvement shell condition dependent | $112–$158/sq ft |
| Kitchen remodel (mid-range) typical 150–200 sq ft kitchen | $26,180–$36,960 total |
Illustrative 2026 ranges, national baselines scaled by the Naperville regional cost index. Real pricing depends on finishes, site conditions, design, and current material prices — always price actual plans.
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A new mid-range custom home in Naperville runs roughly $173–$244 per square foot in 2026, before land, based on Chicagoland construction costs running about 10% higher than the national average. Actual pricing depends on finishes, site work, and design.
Local labor rates, material availability, permitting, and code requirements all move the number. Naperville sits at a 1.10× cost index versus the U.S. average, so plan and estimate to local pricing — not a national rule of thumb.
Have a contractor price your actual plans. CMDBLD reads a plan set and produces a code-aware, Naperville-priced estimate in minutes, then learns from real job costs so it stays accurate over time.