Md. Code, Land Use § 10–304

(a) The Mayor and City Council of Baltimore City may amend or repeal zoning regulations and boundaries.

(b) (1) If the purpose and effect of a proposed map amendment is to change the zoning classification of particular property, the City Council shall make findings of fact that address:

(i) population change;

(ii) the availability of public facilities;

(iii) present and future transportation patterns;

(iv) compatibility with existing and proposed development for the area;

(v) the recommendations of the Baltimore City Planning Commission and the Board; and

(vi) the relationship of the proposed amendment to Baltimore City’s plan.

(2) The City Council may grant the amendment to change the zoning classification based on a finding that there was:

(i) a substantial change in the character of the neighborhood where the property is located; or

(ii) a mistake in the existing zoning classification.

(3) The City Council may not allow the filing of an application for a reclassification of a tract or parcel of land for which a reclassification has been denied by the City Council on the merits in the 12 months before the date of the application.