On March 30, 2017, in the first of at least three CEQA rulings expected this year, the California Supreme Court issued its long-awaited decision in Banning Ranch Conservancy v. City of Newport Beach.  In a unanimous opinion authored by Justice Carol Corrigan, the Court invalidated an EIR for the coastal development at Banning Ranch approved by the City of Newport Beach.  Despite the fact that the EIR addressed in detail the project’s physical impacts on wetlands and sensitive habitats, the Court nevertheless held that it failed to adequately disclose and consider the controversy surrounding the potential presence of Environmentally Sensitive Habitat Areas (“ESHA”) under the Coastal Act.  This decision falls within a growing line of cases mandating inclusion of non-CEQA regulatory requirements within the confines of the CEQA environmental review process, and in a manner that places ever greater burdens on lead agencies and EIR preparers.