§ 66-b. Continuation of gas service. 1. Notwithstanding the provisions of section sixty-six-a of this chapter, no gas customer shall be denied a continuation of gas service following the demolition and reconstruction of any structure or structures owned by any such customer, provided that any such reconstructed structure or structures are on the same parcel of real property, reconstruction commences within one year of demolition and the new structure or structures do not materially increase the customer's gas usage.