Part demolition and replacement of existing buildings with a new two-storey building to connect the Grange and the Barn and alterations to existing buildings and landscaping across the site to create a new museum with a café and shop, whilst retaining offices and archive storage.

Partial infilling of the quarry to create a level development platform; erection of 21no. holiday lodges; conversion of workshop to form a reception, shop and cafe, erection of a cycle store and associated landscaping and parking.

Erection of Class E(a) retail store, car parking and servicing areas, cycle path, landscaping and associated works following demolition of existing buildings.

Development of an open piazza space and the extension, refurbishment and modification of the visitor shop, cafe and museum buildings to include new toilets. Demolition of the former shop/store building, the central entrance building and toilet block. New hard and soft landscaping.