Amends GS 19-1(a) to clarify that the erection, establishment, continuance, maintenance, use, ownership or leasing of any building or place wherein or whereon repeated acts (was, for the purpose) of an illegal activity, as listed, occurs will constitute a nuisance. Makes a conforming change to GS 19-1.2(6) (concerning types of nuisances). Effective August 1, 2011 and applies to offenses or nuisances occurring on or after that date.