How are non-residential or multi-family property fees determined?
A. To determine the annual fee, divide the total impervious area by one Equivalent Residential Unit (ERU) (1,228 sf), obtain the number of ERUs and multiply by the rate. If the property has multiple owners, divide the total fee by the number of owners to obtain the fee by owner. The minimum utility fee for any developed property is never less than one ERU. Impervious areas were determined by analyzing aerial photographs and the Maryland National Capital Park and Planning Commission’s mapping data to identify the amount of impervious surface on each property.