ERUs — What is an Equivalent Residential Unit (E.R.U.)?
Equivalent Residential Unit (E.R.U.) means the statistical average horizontal impervious area of “residential units” (single family, mobile homes, multifamily, condominiums, etc., within the City). The horizontal impervious area includes, but is not limited to, all areas covered by structures, roof extensions, patios, porches, driveways and sidewalks. For Atlantic Beach, this figure is 1790 square feet.
