Any company or association incorporated for the erection and maintenance of a crematory may exercise all the rights and powers conferred by sections 1721.01 to 1721.18, inclusive, of the Revised Code, subject to the conditions provided in such sections. No building shall be erected for such a purpose within two hundred yards of a dwelling house unless the owner of the dwelling house gives his consent. No person, company, association, or firm shall establish a morgue on a street upon which there are dwelling houses unless the owners or occupants of all dwelling houses within two hundred yards of the proposed morgue give their written consent thereto. This section does not apply to a crematory built, or a morgue established, as of April 3, 1900.