309 A.2d 450 Doran Investments, Appellant v. Muhlenberg Township Board of Commissioners and Muhlenberg Township Concerned Citizens Association, Appellees. Philadelphia Home Builders Association, Amicus Curiae. Commonwealth Court of Pennsylvania.Argued June 5, 1973 September 11, 1973. Zoning — Planned residential development — Scope of appellate review — Abuse of discretion — Error of law — Pennsylvania […]