Md. Code, Land Use § 25-207

(a) In this section, “date of disapproval” means: (1) the date of the decision of the district council; or (2) in case of judicial review, the date of the final judgment of the circuit court. (b) If the district council wholly or partly disapproves an application for a map amendment, it may not act on a subsequent application for any portion of the same land: (1) within 18 months after the date of the first disapproval; and (2) within 24 months after the date of any subsequent disapproval. (c) In any subsequent application for any portion of the same land and for the same zoning classification or the same purpose for special exception, by the same applicant, the district council may not base its findings solely on any fact or circumstance that was presented at the hearing on the prior application.