 It took Bonnie Agins 30 years of litigation and administrative proceedings before she was permitted to build three houses on her parcel.Note that the "substantially advance" element of Agins, was later overruled in the Lingle v. Chevron case, where the court explained that its Agins opinion was mistaken on that point and that the "substantially advance" element was appropriate in substantive due process cases, not taking ones.In "Loretto v. Teleprompter Manhattan CATV Corp.", 458 U.S. 419 (1982), the Supreme Court ruled that a regulation is generally considered a "per se" taking when it forces land owners to endure a permanent physical occupation on their land, such as the permanent physical presence of cable lines on a residential building.