Review applications for construction, alteration, removal or demolition of structures within the Historic Preservation District and, based on that review, recommend to the Planning Board the issuance or denial of a certificate of appropriateness for such actions. Applicants may be required to submit plans, drawings, elevations, specifications, photographs and other information as may be necessary to make these recommendations. In the event that an applicant submits a plan prepared by a registered architect, such plan must be reviewed by a registered architect retained by the Planning Board.