Amends GS 160D-703 to provide that for parcels where multifamily structures are an allowable use, the Town of Huntersville may not impose a harmony requirement for  development approval if at least 10% of the number of residential units in the development are affordable housing units for families or individuals with incomes below 80% of the area median income. Under current law, a harmony requirement can not be imposed for permit approval if the development contains affordable housing units for families or individuals with incomes below 80% of the area median income.