As a nationwide provider of environmental and engineering due diligence reports, including Phase 1 Environmental Site Assessments, I often get asked the question from my clients “Do I really need a Phase 1?”. The answer may surprise you. Of course, the simple answer is YES, only a Phase 1 ESA to ASTM E1527-05 and the Environmental Protection Agency’s (EPA) All Appropriate Inquiry (AAI) standard can protect the User of the report against CERCLA liability. However, there are many other limited environmental assessments that are used in the industry as a business decision tool for buying and/or lending on properties. These assessments, being limited in nature are generally faster and cheaper than a Phase 1 ESA. This is because these assessments are, for the most part, “pieces” of the Phase 1.
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June 22, 2026
Partner has named Frederick Ellington, AIA, LEED AP, as Technical Director in its Construction Services division. With 30+ years of experience, he strengthens the firm's construction risk management, due diligence, and project advisory capabilities for commercial real estate clients.

May 27, 2026
Capital planning in commercial real estate has entered a new phase. In addition to traditional lifecycle replacements, managers now face a growing set of capital needs driven by energy ordinances, decarbonization goals, and climate risk. These drivers are no longer peripheral considerations; they are central to how capital plans are developed, prioritized, and executed.

June 05, 2026
Partner Property Consultants, the European subsidiary of Partner Engineering & Science, Inc. (Partner ESI), announces that Antoine Yeprem joined the company in June 2026 as Senior Consultant, Real Estate Due Diligence, in Germany.




