How Much Does a Phase I ESA Cost?
Quoted per property — because a 2,000 sq ft office and a 40-acre former industrial site are not the same amount of work.
Nationally, published Phase I prices commonly run around $1,500 to $6,000 or more, depending on size and complexity. We don't publish a flat number of our own, because nobody honest can — a small, straightforward commercial property and a large or complicated one are not the same amount of work, and any firm quoting you before they've looked at the property is quoting the wrong property.
A Phase I from Sierra Consultants is quoted per property, within one business day, and the quote itself costs nothing. Tell us the address and we'll tell you the number — and talk you out of it if your deal doesn't need one.
What Actually Drives the Price
- Site size and number of buildings. More ground and more structures means more to physically inspect and more records to pull.
- Site history and complexity. A property with a straightforward history (always retail, always office) is faster to clear than one with a prior industrial, automotive, or dry-cleaning use, which requires a closer look at historical records and regulatory files.
- How fast you need it. A standard timeline costs less than a rush.
Our own proposals say it plainly: unusually large or complex sites cost more. That's not a hedge — it's the honest answer, and it's the same answer every real firm gives once you ask past the marketing page.
We Don't Profit From Escalating Further, Either
We do not perform Phase II investigations. If your Phase I recommends one, that work goes to someone else — so nothing in the report is shaped by what we would earn next. It's the same structural fix as the Clean-or-Free guarantee one level up: a firm that can't profit from finding more work has no reason to find more work than is actually there.
Do You Actually Need a Phase I?
This is the question most Phase I pricing pages don't answer, because for them the answer is always yes. It isn't always yes.
A Phase I ESA is required to satisfy the "all appropriate inquiry" requirement for innocent landowner, contiguous property owner, or bona fide prospective purchaser limitations on CERCLA liability. The RSRA EZ-Screen is a faster, lower-cost screening tool and does not provide that liability protection. If your deal specifically needs that liability protection — most purchases where you want CERCLA's landowner defenses — a Phase I is what you need.
But a lot of deals don't need it yet. Many SBA and conventional lenders start with a lighter screen, and only order a Phase I if that screen turns up something worth a closer look. If you're not sure which category your deal is in, our free checker gives a straight answer in seconds, checked against SOP 50 10 8.1 — the current rulebook, not a superseded one.
Check what your deal actually needs
Frequently Asked Questions
How much does a Phase I ESA cost?
Nationally, published Phase I prices commonly range from around $1,500 to $6,000 or more, depending on the property. There is no honest flat number: the price is quoted per property and depends on site size and complexity, same as every proposal we've ever sent. Ask us for yours — within one business day, at no charge.
What makes a Phase I cost more or less?
Mainly site size and complexity — a larger parcel, multiple buildings, or a more complicated history (prior industrial use, known chemical handling, more records to review) takes more work to investigate properly. A small, straightforward commercial property at the low end of the range costs less than a large or complicated one.
Do I actually need a Phase I, or would a faster, cheaper screen work?
Depends on the deal. A Phase I Environmental Site Assessment is required to satisfy the “all appropriate inquiry” requirement for innocent landowner, contiguous property owner, or bona fide prospective purchaser limitations on CERCLA liability. The RSRA EZ-Screen is a faster, lower-cost screening tool and does not provide that liability protection. If you don't yet know which one your deal requires, our free SBA checker gives a straight answer in seconds.
How fast can I get a price?
Within one business day of submitting a request — no charge for the quote itself.
Once authorized, how long does the Phase I itself take?
about 10 business days, more or less, once the work is authorized.
Already know you need a Phase I? Request your price — within one business day, nothing charged until you authorize the work.