The change of use of part of 2 no. ancillary buildings referred to as Boswell House Ancillary Building and The Stables providing for a total of 7 no. apartments providing for short stay residential accommodation ancillary to the equestrian centre; and the retention for change of use of part of The Gallery ancillary building to provide a tack shop and café as follows: (i) Part change of use of the existing 2-storey building referred to as Boswell House Ancillary Building including retention of elevational changes to accommodate the change of use from offices, store, kill room and pre-existing shop to 5 no. apartments (4 no. one-bedroom and 1 no. two-bedroom ) providing short stay residential accommodation ancillary to the equestrian centre; (ii) part change of use of the existing single storey building referred to as The Stables including retention of elevational changes to accommodate change of use from stables to 2 no. one-bedroom apartments providing short stay residential accommodation ancillary to the equestrian centre. (iii) part change of use of the existing single storey building referred to as The Gallery including retention of elevational changes to accommodate the change of use from a covered viewing gallery to a tack shop and café ancillary to the equestrian centre. Permission is also sought for a proposed wastewater treatment system and raised soil polishing filter for the site; and, all associated ancillary works necessary to facilitate the development