The properties of public service corporations which are subject to Sections 27-35-331 through 27-35-343 are limited to:
Vacant and unimproved real estate owned in fee simple.
Buildings and the land on which they are situated utilized solely for the purpose of housing the managerial offices of such corporations, and the office furniture and facilities located therein.
Buildings and the land on which they are situated utilized for the warehousing or storage of materials and supplies; provided, however, Sections 27-35-331 through 27-35-343 do not apply to the materials, supplies, equipment and facilities warehoused or stored therein.
Buildings and the land on which they are situated utilized for the purpose of conducting the merchandising and sale of appliances utilizing the utility service furnished by such entity, together with inventories of such goods and appliances.