Coppolino v. County Board of Appeals

This case presents the narrow question of whether the County Council of Baltimore County (Council) committed basic and actual “mistake”, as that term is used in zoning law, when on 24 March 1971 it adopted a comprehensive zoning map on which the subject property, consisting of 32.907 ± acres, was classified as D.R.-5.5 (Density Residential, 5.5 dwelling units per acre).

Most of the facts are not in dispute. The subject property, roughly rectangular in shape, lies m an area bounded by Belair Road on the west, Joppa Road on the north and Ebenezer Road on the south. All of the land lying within…