10. In Class Q of Part 3 of Schedule 2 —
(a)at the end of paragraph Q.(a) for “and” substitute “or”;
(b)in paragraph Q.(b) before “building operations reasonably necessary” insert “development referred to in paragraph (a) together with”;
(c)for paragraphs Q.1.(b) to (h) substitute—
“(b)in the case of—
(i)a larger dwellinghouse, within an established agricultural unit—
(aa)the cumulative number of separate larger dwellinghouses developed under Class Q exceeds 3; or
(bb)the cumulative floor space of the existing building or buildings changing use to a larger dwellinghouse or dwellinghouses under Class Q exceeds 465 square metres;
(c)in the case of—
(i)a smaller dwellinghouse, within an established agricultural unit—
(aa)the cumulative number of separate smaller dwellinghouses developed under Class Q exceeds 5; or
(bb)the floor space of any one separate smaller dwellinghouse having a use falling within Class C3 (dwellinghouses) of the Schedule to the Use Classes Order exceeds 100 square metres;
(d)the development under Class Q (together with any previous development under Class Q) within an established agricultural unit would result in either or both of the following—
(i)a larger dwellinghouse or larger dwellinghouses having more than 465 square metres of floor space having a use falling within Class C3 (dwellinghouses) of the Schedule to the Use Classes Order;
(ii)the cumulative number of separate dwellinghouses having a use falling within Class C3 (dwellinghouses) of the Schedule to the Use Classes Order exceeding 5;
(e)the site is occupied under an agricultural tenancy, unless the express consent of both the landlord and the tenant has been obtained;
(f)less than 1 year before the date development begins—
(i)an agricultural tenancy over the site has been terminated, and
(ii)the termination was for the purpose of carrying out development under Class Q,
unless both the landlord and the tenant have agreed in writing that the site is no longer required for agricultural use;
(g)development under Class A(a) or Class B(a) of Part 6 of this Schedule (agricultural buildings and operations) has been carried out on the established agricultural unit—
(i)since 20th March 2013; or
(ii)where development under Class Q begins after 20th March 2023, during the period which is 10 years before the date development under Class Q begins;
(h)the development would result in the external dimensions of the building extending beyond the external dimensions of the existing building at any given point;”;
(d)after paragraph Q.2 (conditions), insert—
Q.3. For the purposes of Class Q—
“larger dwellinghouse” means a dwellinghouse developed under Class Q which has a floor space of more than 100 square metres and no more than 465 square metres having a use falling within Class C3 (dwellinghouses) of the Schedule to the Use Classes Order;
“smaller dwellinghouse” means a dwellinghouse developed under Class Q which has a floor space of no more than 100 square metres having a use falling within Class C3 (dwellinghouses) of the Schedule to the Use Classes Order.”.