Brownfields & Environmental Risk in Industrial Property
Most industrial buyers walk away from contaminated property because nobody explained what the report actually said. Here is the short version of what a Phase I finds, what a Phase II does to your price, and who is actually liable for contamination you did not cause.
The short version: A brownfield is a property whose redevelopment is complicated by real or perceived contamination — and a large share of brownfield discounts are priced off fear rather than off a measured cleanup number. Federal law since 2002 has offered buyers a way out of inherited liability through the bona fide prospective purchaser defense, provided the investigation happens before closing. Buyers who understand that sequence routinely acquire industrial sites at a discount well beyond what the remediation actually costs.
This is the condensed version. The full guide — Phase I and Phase II mechanics, REC vs HREC vs CREC, CERCLA liability and BFPP requirements, underground tanks, landfills, asbestos, cleanup funding, and how to structure the deal — lives at passive.investments/brownfields.
What a Phase I actually is
A Phase I Environmental Site Assessment is a non-invasive investigation of a property’s environmental history. No drilling, no sampling. The environmental professional reviews historical records, aerial photography, fire insurance maps, regulatory databases, chain of title, and interviews, then walks the site. The output is an opinion on whether Recognized Environmental Conditions exist.
It exists for one legal reason: it is how you satisfy the All Appropriate Inquiries rule, which is the precondition for the CERCLA landowner liability defenses. Skip it and you forfeit those protections permanently. The current standard is ASTM E1527-21 — a report citing the older E1527-13 does not buy you the protection you are paying for.
Budget roughly $2,000–$5,000 and two to four weeks for a standard commercial or industrial site.
The three acronyms that decide your deal
| Finding | What it means | What it does to your deal |
|---|---|---|
| REC | Presence or likely presence of a release, or a material threat of one. | The live one. Triggers Phase II. Most lenders will not close over an open REC. |
| HREC | A past release remediated to unrestricted use with no controls required. | Generally clean — but verify the closure still meets current standards. |
| CREC | A past release where contamination was left in place under required controls. | Contamination is still there. You inherit the controls and the restrictions. |
The CREC is where inexperienced buyers get hurt. It reads like a resolved item because a regulator signed off, but it carries permanent obligations that travel with the deed.
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Who is liable for contamination you did not cause?
Under CERCLA, the current owner can be held liable even having done nothing to cause it. Liability is strict, joint and several, and retroactive. That default is exactly why the statutory defenses matter.
The bona fide prospective purchaser defense requires that you acquired after January 11, 2002, completed All Appropriate Inquiries before purchase, have no affiliation with a liable party, and that all disposal predated your ownership. It then requires ongoing compliance: appropriate care, reasonable steps to stop continuing releases, respect for land use restrictions, and cooperation and access for response actions. It is a status you can lose.
In Tennessee, the practical protection usually comes through TDEC’s Voluntary Oversight and Assistance Program. A Brownfield Voluntary Agreement ends in a No Further Action letter, and the liability relief extends to successors, developers, future owners, and lenders — which is typically what makes the site financeable.
“The buyer is demanding a Phase II”
Refusing does not make contamination not exist. It makes it unpriced — and unpriced risk gets discounted far more harshly than measured risk. Sellers who commission their own Phase II before going to market, with a defined remediation number and a state closure pathway underway, consistently transact closer to asking than sellers who fight the investigation.
One real caveat: in some states, confirming contamination triggers reporting duties. Talk to environmental counsel about your state before you sample.
Quick answers
What is the difference between a brownfield and a greenfield?
A greenfield is undeveloped land with no prior industrial use. A brownfield is previously developed property where redevelopment is complicated by real or perceived contamination. Greenfields are simpler to build on; brownfields sit where the rail, power, water, and highway access already are.
How long before a former gas station site can be built on?
There is no fixed waiting period. The site is buildable when the regulator issues closure, which depends on contaminant levels, groundwater impact, and intended use. Industrial-use standards clear considerably faster than residential.
Is it safe to build on an old landfill?
It is done routinely, but the limiting factors are differential settlement and landfill gas rather than chemical exposure. Buildings generally need deep foundations bearing below the waste plus gas collection. Many closed landfills suit surface uses better — solar, parking, industrial outdoor storage.
What drives cleanup cost?
Contaminant type, media affected, and cleanup standard — not site size. The single biggest lever is the standard, which is set by intended use. Committing to industrial reuse instead of residential can change the number by an order of magnitude.
Read the full guide: The Industrial Buyer’s Guide to Brownfields & Environmental Risk — ten sections covering Phase I and II mechanics, CERCLA and BFPP in detail, underground storage tanks, landfills, asbestos and demolition, cleanup funding sources, and deal structuring.
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Disclaimer. This page is general information about industrial real estate practice and is not legal, environmental, or engineering advice. Environmental liability is highly fact-specific and varies by state. Cost figures are general market ranges as of 2026 and are not quotes. Engage qualified environmental counsel and a licensed environmental professional before acting on any property. Passive Investments is a commercial real estate brokerage, not a law firm or environmental consultancy.