The Planning Board shall approve an application for demolition of an architecturally significant building, or portion thereof, if the building, or portion thereof, is uninhabitable, as determined by the Construction Code Official's written report, and the applicant proves that it is not economically feasible to recondition the building to a condition wherein it is safe for occupancy or use. The applicant shall provide the Planning Board with pictures of all areas of the building, interior and exterior, as this proof. The Planning Board may also consult with the Historic Preservation Commission and/or the Riverton Historical Society to determine the architectural or historical significance of the building. The Planning Board may request the Historic Preservation Commission to provide a report and/or testimony to the Board concerning the architectural significance or history of the subject structure. If the Planning Board does not find it obvious that it is economically unfeasible to preserve the building, it shall require additional proof from the applicant in the form of work estimates and appraisals. Normal maintenance, lead-based paint and asbestos-containing siding and/or roofing shall not be considered.