Complex sentence: The lease for the site was acquired from the Calthorpe Estate on a peppercorn rent by the BBC, and plans for the site were approved in 1967, the same year that construction of the studios began.
Split into simpler sentences: The lease for the site was acquired from the Calthorpe Estate on a peppercorn rent by the BBC. The plans for the site were approved in 1967, and construction of the studios began.