In addition to meeting the normal requirements for obtaining a building permit, all applications for alteration and/or demolition of a building or structure designated as having "significant" or "contributing" historic architectural features, according to a survey conducted by Historic York, Inc., in 1981 (which is on file in the Borough office and its content is incorporated here by reference), shall be forwarded to the Jefferson Historic District Commission so that a meeting between the Commission and the applicant can be arranged. The meeting will deal with (a) building harmony, which is the relationship between the proposed alteration and the texture, size and material of the present structure or building, and (b) structural effect, which is the architectural historic character of the property. The recommendations of the Jefferson Historic District Commission shall be advisory only and not mandatory.