No agricultural land or agricultural buildings shall be liable to be rated or be included in any valuation list or in any rate.
The gross value for the purposes of section 19(2) of this Act of a house occupied in connection with agricultural land and used as the dwelling of a person who—
shall, so long as the house is so occupied and used, be estimated by reference to the rent at which the house might reasonably be expected to let from year to year if it could not be occupied and used otherwise than as aforesaid.
In this section the expression " agricultural land "—
In this section, the expression " agricultural buildings "—
where the number of occupiers of all the said land does not exceed twenty-four (two or more persons occupying jointly being counted as one, but as a separate person from any of them who are occupying any of the land severally).