WA · Commercial due diligence · ASTM E1527
Phase 1 Environmental Site Assessment Cost Washington
Looking up phase 1 environmental site assessment cost washington or a Phase I ESA quote near Seattle? A standard commercial Phase 1 Environmental Site Assessment in Washington typically plans around $3,100 – $4,900 (about 1 acre, mixed/unknown history, one building). Seattle-Tacoma port and aerospace-industrial legacy supports higher regional pricing.
Major markets: Seattle · Tacoma · Spokane · Typical turnaround: 7–14 business days for standard commercial sites
How much does a Phase 1 environmental site assessment cost in Washington?
Below are typical Washington ranges by property type using 2026 U.S. market baselines and a Washington regional cost index. Competitors often publish one nationwide band—we break pricing down for your state and asset class.
| Property Type | Typical Washington Range* |
|---|---|
| Small office / retail parcel | $2,300 – $3,100 |
| Standard commercial site | $3,100 – $4,900 |
| Industrial property | $4,300 – $8,000 |
| Multi-building campus | $4,900 – $9,250 |
| Vacant / undeveloped land | $2,450 – $4,300 |
*Planning estimates for ~1 acre, unknown/mixed history, single building; adjust with the calculator below.
Phase 1 environmental site assessment in Washington (not just cost)
Buyers searching for a Phase 1 environmental site assessment in Washington—or a Phase I ESA without the word “cost”—still need the same ASTM E1527-21 scope: records review, site reconnaissance, interviews, and REC conclusions. Pricing on this page is the planning layer; lender format, travel, and rush delivery are confirmed in a consultant proposal.
For Phase 1 environmental site assessment cost near me in Washington, use the statewide calculator below and filter by your metro (Seattle, Tacoma, Spokane). Local field time is what “near me” actually changes—not a different ASTM standard.
What drives Phase 1 environmental site assessment pricing in Washington?
- State and county environmental database access affects research time in Washington.
- Travel to remote parcels can add field costs beyond the base quote.
- Lender formatting and ASTM E1527 scope should be confirmed before award.
Washington Phase 1 environmental site assessment cost calculator
Select Washington, then adjust property type, acreage, site history, and building count for a localized planning range.
Estimated Cost
$3,100 – $4,900
Planning range for a Phase 1 ESA on Standard commercial site in Washington (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.
Washington Phase 1 ESA cost FAQ
How much does a Phase 1 environmental site assessment cost in Washington?
A Phase 1 (Phase I) Environmental Site Assessment in Washington is typically priced by property type, acreage, site history, and metro—markets such as Seattle and Tacoma often sit above rural counties. Use the calculator on this page for a Washington regional index estimate; it is a planning range, not a formal consultant quote.
How much does a Phase I ESA cost in Washington?
Phase I ESA is the same ASTM E1527 report as a Phase 1 ESA. In Washington, planning costs follow the same table on this page—small retail is usually the lowest band, industrial and high-risk histories (gas stations, dry cleaners) the highest.
Who pays for a Phase 1 ESA in Washington?
Buyers and SBA or conventional borrowers in Washington usually pay for the Phase 1 ESA during due diligence. Sellers sometimes provide a recent report, but lenders often require a current ASTM E1527-21 report in the buyer’s (or lender’s) name.
Can I find Phase 1 environmental site assessment cost near me in Washington?
“Near me” searches still resolve to statewide consultant markets. This Washington guide covers Seattle and Tacoma and other metros—enter your county-level details in the calculator, then request quotes from consultants who can field-walk the parcel.
Is a Phase 1 ESA required for commercial property in Washington?
Most commercial acquisitions, refinances, and many agency-backed loans in Washington require ASTM E1527-aligned Phase 1 ESAs. 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 Washington?
For standard Washington 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 Washington Phase 1 ESA pricing different from the national average?
State and county environmental database access affects research time in Washington.
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