In this zoning enforcement action out of Northampton County, the Commonwealth Court was presented with a property owner’s appeal of a judgment entered against them for constructing a retaining wall and backfill within the Delaware River floodplain without necessary permits. In affirming the Court of Common Pleas of Northampton County’s (the “trial court”) decision to award attorney fees, a fine, and grant a permanent injunction, the court found that failure to appeal a zoning violation notice to the zoning hearing board (“ZHB”) resulted in a conclusive determination of violation that could not be contested on appeal.