If at any time one (1) person owns, or two (2) or more persons own jointly or as tenants in common, or a corporation owns all the lots and blocks in any addition or division to any city or incorporated town in this state, the streets and alleys of which have not been used by the public for the last seven (7) years prior to the filing of the petition, then the person, persons, or corporation may have the addition or division reduced to acreage by proper petition to the county court.