For the purpose of allowing early construction of model homes in the subdivision, the Planning Commission at its discretion, may permit a portion of a major subdivision involving no more than two lots to be created in accordance with the procedure for a minor subdivision, provided such two lots meet the criteria for a minor subdivision. The subdivision plat for the "minor" portion shall be submitted to the Commission simultaneously with the preliminary plat of the major subdivision. Subsequent to the preliminary plat approval, the model may be constructed, subject to such additional requirements that the Commission may require.