Engage the Phase I consultant in week 1 of the closing process. Provide the property use history, any prior environmental reports, prior tenant uses, current operations, and any known concerns. Per ASTM E1527-21, the Phase I includes records review, site reconnaissance, owner and operator interviews, and a written report.
Sponsor-side preparation that prevents delays
Documentation to collect before the Phase I consultant arrives: title commitment with all prior owners and tenants identified, property survey with all on-site features identified (UST locations, septic systems, transformer pads, dumpster areas), prior Phase I or Phase II reports if available, prior remediation records, current site uses including any tenant operations that involve hazardous materials.
Site visit preparation: make sure the consultant has access to all areas of the property including utility rooms, basements, mechanical equipment, roof, and any historical UST or AST locations. Have on-site personnel available for interviews.
Historical site use: the Phase I consultant will pull historical aerial photographs, fire insurance maps, city directories, and regulatory database records. Sponsor knowledge of past industrial use, prior dry cleaners, gas stations, automotive uses, or manufacturing tenants helps the consultant focus and reduces the risk of REC (recognized environmental condition) findings.
Phase II readiness: if the Phase I recommends Phase II investigation, the borrower needs to make a decision quickly, proceed with Phase II ($10K to $50K, 4 to 8 weeks) or attempt to negotiate with the lender to close subject to environmental indemnity. Most institutional lenders require Phase II completion before closing.
Common findings that complicate closings: historical or current UST presence, prior dry cleaner use, vapor intrusion concerns from off-site sources, asbestos-containing materials in older buildings, lead-based paint in residential properties built before 1978. Each requires specific lender negotiation.
Per CERCLA and ASTM E1527-21, an institutionally compliant Phase I provides defense against later environmental liability claims, so it is in the borrower's interest, not just the lender's.
Sources
- ASTM E1527-21 Standard Practice for Phase I Environmental Site Assessments · ASTM International · 2021
- Quarterly Survey of Commercial/Multifamily Mortgage Bankers Originations · Mortgage Bankers Association · 2026-Q1
