Typical Phase 1 ESA cost in Arizona
$2,000–$4,500
per standard commercial parcel
Compiled from published 2026 industry cost guides (at the $2,000-$4,500 national baseline). Full methodology on the cost data page.
Phase 1 Environmental Site Assessment Cost in Arizona
Arizona sits at the national baseline in the published cost guides. Phoenix has seen rapid commercial and industrial growth over the past decade, particularly in semiconductor manufacturing and logistics, and the state's comparatively shorter industrial history compared to older Midwest and Northeast markets keeps historical-record review relatively lighter on many sites.
What tends to drive cost up in Arizona
Arizona's historical mining activity, particularly in the copper-producing regions outside metro Phoenix, is the state's most distinctive REC source, while Phoenix's newer commercial and industrial development, including recent large-scale semiconductor fabrication facilities, more often has a shorter and cleaner documented history.
Looking for a specific city? See Phase 1 ESA in Phoenix, Arizona, the largest commercial real estate market in the state.
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Frequently asked questions: Arizona
Is Phoenix cheaper for a Phase 1 ESA because it's a newer market?
Arizona runs at the national baseline in published cost guides rather than a discount, though newer development can mean a shorter historical review on sites without a prior industrial history.
Does Arizona's mining history affect Phase 1 ESAs?
On sites near historical mining regions outside metro Phoenix, yes, mining is a well-documented source of soil and groundwater contamination risk that a thorough Phase 1 ESA checks for regardless of current land use.
How fast can a Phase 1 ESA be completed in Phoenix?
The standard national turnaround of 2 to 4 weeks applies; newer sites with a shorter historical record can sometimes move faster through the records-review portion of the process.
Other states
Compare the state-level Phase 1 ESA cost range in other active commercial real estate markets.