Brownfields & Environmental Due Diligence

Every property transaction carries environmental risk — known or otherwise. Before a purchase, transfer, or redevelopment moves forward, understanding what a site holds beneath the surface is essential to protecting the investment and the people who will use it. DLZ’s environmental due diligence services give clients the clarity they need to make informed decisions, reduce regulatory exposure, and move forward with confidence.

Our assessments follow ASTM standards and EPA requirements, providing thorough evaluations of current and historical site conditions that uncover potential liabilities before they become costly surprises. Whether the goal is completing a transaction, establishing liability protection, or laying the groundwork for redevelopment, we provide the documentation, analysis, and actionable recommendations that minimize project financial risk and contaminant exposure risk.

Featured Capabilities

Environmental Site Assessment

Phase I Environmental Site Assessment

A Phase I assessment is the essential first step in understanding a property’s environmental history. We evaluate current and historical land uses to identify recognized environmental conditions, conducting each assessment in accordance with ASTM standards and EPA All Appropriate Inquiry requirements to ensure regulatory compliance and support informed transaction decisions.

Environmental Phase II Site Assessment

Phase II Environmental Site Assessment

When a Phase I assessment identifies potential concerns, a Phase II investigation confirms whether contamination is present and to what extent. Through targeted sampling and laboratory analysis, DLZ provides site-specific data that quantifies contamination levels, assesses risk to occupants and third parties, and supports the next steps in remediation or transaction planning.

Baseline Environmental Assessment

Risk Management

Managing risk posed by environmental contamination is critical to the successful redevelopment of brownfield properties. Evaluating potential exposure risk and developing mitigation strategies ensures worker safety during construction and site occupant safety post-development.

Related Work

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