Phase I Environmental Site Assessment Resource Hub
CRB helps buyers, lenders, developers, and commercial property owners understand environmental risk before a property changes hands.
From ASTM E1527-21 compliant Phase I Environmental Site Assessments to Phase II investigations and environmental consulting, our team provides the information needed to support commercial real estate transactions, financing, redevelopment, and long-term property management.
Our reports are clear and defensible, technically sound, and designed to help clients make informed decisions while keeping projects moving.
Phase I ESA Guide: Process, Requirements, Findings & Next Steps
New to Phase I Environmental Site Assessments?
This guide explains the entire process from start to finish, including when a Phase I ESA is required, what environmental professionals evaluate, how findings are reported, and what happens if environmental concerns are identified. You'll also find answers to many of the most common questions from buyers, lenders, developers, and commercial property owners.
Explore Our Phase I Environmental Site Assessment Resources
Browse expert-written guides covering the Phase I ESA process, ASTM E1527-21 requirements, environmental due diligence, property transactions, Recognized Environmental Conditions (RECs), and other topics that help commercial real estate professionals make informed environmental decisions.
