Site assessments Phase 1 Environmental Site Assessment. These evaluations are often required for the sale of commercial real estate and are used by property owners, real estate firms, developers, banks and other lenders, title companies, and corporate and institutional real estate managers. The capabilities and experience of Robinsong allows us to provide our clients with Phase I Environmental Site Assessments for any type of property. Robinsong has prepared numerous Phase I ESAs for private and public area clients, including Limestone County Economic Development Association and Rise Real Estate.