Phase 1 Environmental Site Assessment Cost in Massachusetts
Typical Phase 1 ESA cost in Massachusetts
$2,600–$5,850 per standard commercial parcel
Compiled from published 2026 industry cost guides (+30% vs. the $2,000-$4,500 national baseline). Full methodology on the cost data page.
Massachusetts carries one of the higher state premiums in the published guides, on par with New Jersey. Boston's old mill-town industrial legacy stretching out into the surrounding metro, combined with the state's own environmental cleanup program (the Massachusetts Contingency Plan, run separately from the federal Phase 1 ESA process), both add to the record-review workload.
What tends to drive cost up in Massachusetts
New England's 19th and early 20th century textile and manufacturing mills, many now converted to office, retail, or residential use, are a distinctive Massachusetts REC category. A Phase 1 ESA on a converted mill building in or around Boston often traces a long chain of past industrial tenants.
Looking for a specific city? See Phase 1 ESA in Boston, Massachusetts, the largest commercial real estate market in the state.
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Frequently asked questions: Massachusetts
Why does Massachusetts cost more for a Phase 1 ESA?
The state's premium in published cost guides runs around 30% above the national baseline, comparable to New Jersey, reflecting both Boston-area consultant demand and the density of historical industrial sites across New England mill towns.
Are converted mill buildings harder to assess?
They usually require more historical research since the ASTM E1527-21 standard requires tracing a property's use back through available records, and a century-old mill building can have had many industrial tenants before its current use.
Does Massachusetts have its own environmental cleanup rules?
Yes, the Massachusetts Contingency Plan is a state-run program separate from the federal AAI rule. A Phase 1 ESA still has to meet the federal ASTM E1527-21 standard regardless; state programs are a separate track that can come into play if contamination is found.