In Alto Eldorado Partnership v. County of Santa Fe, No. 09-2214 (Mar. 16, 2011), the U.S. Court of Appeals for the Tenth Circuit held that a regulatory takings challenge to an affordable housing exaction was not ripe under the second prong of the Williamson County test.The “final decision” prong was not at issue in this case, where the plaintiffs challenged the County’s up-to-30% affordable housing exaction on subdivisions, where the subdivision is for resale.