IL · Commercial due diligence · ASTM E1527
Phase 1 Environmental Site Assessment Cost in Illinois (2026)
Chicago industrial and Chicago River-adjacent parcels require deeper historical review than downstate retail.
Searching for phase 1 environmental site assessment cost illinois? This page gives Illinois-specific planning ranges—not a single national average—plus a calculator tuned to regional pricing.
Major markets: Chicago · Springfield · Rockford · Typical turnaround: 7–14 business days for standard commercial sites
How much does a Phase 1 environmental site assessment cost in Illinois?
Below are typical Illinois ranges by property type using 2026 U.S. market baselines and a Illinois regional cost index. Competitors often publish one nationwide band—we break pricing down for your state and asset class.
| Property Type | Typical Illinois Range* |
|---|---|
| Small office / retail parcel | $2,150 – $2,900 |
| Standard commercial site | $2,900 – $4,650 |
| Industrial property | $4,100 – $7,600 |
| Multi-building campus | $4,650 – $8,750 |
| Vacant / undeveloped land | $2,350 – $4,100 |
*Planning estimates for ~1 acre, unknown/mixed history, single building; adjust with the calculator below.
What drives Phase 1 environmental site assessment pricing in Illinois?
- State and county environmental database access affects research time in Illinois.
- Travel to remote parcels can add field costs beyond the base quote.
- Lender formatting and ASTM E1527 scope should be confirmed before award.
Illinois Phase 1 environmental site assessment cost calculator
Select Illinois, then adjust property type, acreage, site history, and building count for a localized planning range.
Estimated Cost
$2,900 – $4,650
Planning range for a Phase 1 ESA on Standard commercial site in Illinois (2026 U.S. market baselines + regional index). Not a formal quote.
Confirm scope, exclusions, travel, and lender format with a qualified environmental consultant before closing deadlines.
Illinois Phase 1 ESA cost FAQ
How much does a Phase 1 environmental site assessment cost in Illinois?
In Illinois, typical Phase 1 Environmental Site Assessment (Phase 1 ESA) planning ranges depend on property type, site history, and markets such as Chicago and Springfield. Use the calculator on this page for a localized estimate based on Illinois's regional cost index and your parcel details—not a formal consultant quote.
Is a Phase 1 ESA required for commercial property in Illinois?
Most commercial acquisitions, refinances, and many agency-backed loans in Illinois require ASTM E1527-aligned Phase 1 ESAs during due diligence. Requirements vary by lender, deal structure, and prior land use—confirm scope with your environmental consultant and lender early.
How long does a Phase 1 ESA take in Illinois?
For standard Illinois commercial sites, expect 7–14 business days for standard commercial sites. Complex industrial history, multi-building campuses, or busy metro records queues can extend timelines—order early if a closing date is fixed.
What makes Illinois Phase 1 ESA pricing different from the national average?
State and county environmental database access affects research time in Illinois.
Popular state guides
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