Nothing in this chapter shall be construed to prevent ordinary maintenance or repair of any structure within the historic district; provided, that any maintenance or repair does not result in any change of design, type of material, or appearance of the structure or its appurtenances. Nothing in this chapter shall be construed to prevent the construction, alteration, repair, moving, or demolition of any structure under a permit issued by the building official prior to the passage of an ordinance.
R.I. Gen. Laws § 45-24.1-8