Pricing Guide
How Much Does a Phase 1 Environmental Site Assessment Cost?
Most Phase 1 ESAs in the US cost between $1,500 and $3,500. What moves the number from the low end to the high end — and sometimes past it — comes down to the property's size, history, and location.
Updated March 2026 · 6 min read
Typical Phase 1 ESA cost range
The table below reflects typical pricing reported by environmental consulting firms for standard commercial properties in the US. Prices vary by region and property type — urban markets and high-cost states (California, New York) tend to run toward the upper end.
| Property type | Typical cost |
|---|---|
| Small commercial property (standard use history) | $1,500 – $2,000 |
| Mid-size commercial or mixed-use property | $2,000 – $3,000 |
| Large property or complex prior use | $3,000 – $4,500 |
| Industrial site or multiple parcels | $4,000 – $6,000+ |
| Rush turnaround (5 business days or under) | +$500 – $1,000 |
Pricing reflects industry data from environmental consulting firms. Always request firm-specific quotes — actual costs vary.
What factors affect the price?
Prices vary a lot for the same general property type. Know what drives the number and you'll also know when a quote looks suspiciously low.
Property size and complexity
A small retail strip or office building takes less time to research and inspect than a large industrial campus or multi-parcel site. More acreage and more buildings mean more records to pull and a longer site visit.
Prior land use history
A property with a straightforward use history — a parking lot that was always a parking lot — is fast to research. A site with a history of industrial operations, gas stations, dry cleaners, or agricultural chemical use requires significantly more records work and may involve database searches that flag multiple Recognized Environmental Conditions (RECs).
Location
Consulting rates are higher in major metros (Los Angeles, New York, Chicago) than in rural markets. Travel time to the site also factors in — a firm billing hourly will charge more for a site that's two hours from their office.
Turnaround time
Standard turnaround is 2–4 weeks. Rush orders — typically defined as 5 business days or under — carry a premium of $500–$1,000 in most markets. If your deal has a hard deadline, budget for the rush fee and ask about it explicitly when requesting quotes.
Proximity to known contamination
If the property is near a known contamination site (a Superfund site, a leaking underground storage tank, or a prior industrial facility), the consultant will spend more time on regulatory database searches and may need to review more detailed records. This adds time and cost.
Lender or institutional requirements
Large banks and CMBS lenders often have approved vendor lists or specific report format requirements. Check with your lender before ordering — finding out their requirements after the report is drafted means extra cost and delay.
What's included in a Phase 1 ESA?
Under ASTM E1527-21, every Phase 1 that qualifies as an AAI inquiry under CERCLA must include four things:
Historical records, aerial photos, fire insurance maps, city directories, and regulatory databases going back as far as records exist for the area.
A licensed environmental professional visits and walks the property and adjoining properties to look for physical evidence of contamination.
The EP interviews current and past owners, operators, and occupants, as well as relevant local government officials.
A final report signed by the EP documenting all findings and calling out any Recognized Environmental Conditions (RECs), Historical RECs (HRECs), or Controlled RECs (CRECs).
The EPA's AAI rule requires that certain components — including site interviews, on-site inspection, and regulatory database searches — be completed within 180 days before the date of ownership transfer. The full assessment must be completed or updated within one year of acquisition.
If contamination is found: Phase 2 ESA costs
Phase 1 does not involve sampling
If the Phase 1 identifies one or more Recognized Environmental Conditions (RECs), the lender or buyer will typically require a Phase 2 ESA. Phase 2 involves physical sampling of soil, groundwater, or building materials to determine whether contamination actually exists.
| Assessment | Typical cost |
|---|---|
| Phase 1 ESA | $1,500 – $3,500 |
| Phase 2 ESA — limited scope | $5,000 – $15,000 |
| Phase 2 ESA — moderate scope | $15,000 – $35,000 |
| Phase 2 ESA — complex or large industrial site | $35,000 – $100,000+ |
| Remediation (if contamination confirmed) | Highly variable — $10,000 to millions |
How to get accurate quotes for your property
A $500–$1,000 spread for the same property is common. To make quotes actually comparable:
- Provide the property address and size. Firms need the address to run a preliminary database search before quoting. A quote without this is a guess.
- Share what you know about prior use. If you know the property was a gas station or dry cleaner, say so upfront. Firms will price in the additional research time.
- State your deadline clearly. If you need the report in under two weeks, ask for rush pricing. Standard lead time is 2–4 weeks.
- Ask about ASTM E1527-21 compliance. Any Phase 1 ESA accepted by a commercial lender must comply with ASTM E1527-21 and the EPA's AAI rule. Confirm this explicitly.
- Get at least three quotes. That spread is real. The only way to know where your property lands is to ask multiple firms.
The cost ranges on this page are based on industry pricing data from environmental consulting firms and reflect typical market conditions as of early 2026. Actual prices vary by region, firm, and property specifics. Consult a licensed environmental professional for a quote specific to your property.
Get quotes from licensed Phase 1 ESA firms
Tell us about your property and we'll match you with licensed environmental consultants in your area. Free to use, no obligation.
Request free quotes