Complex sentence: The estate was first owned by Dr.JW Waugh, on the premises in close proximity to where now stands the GB Pant Hospital (Ramsay Hopital)-purchased from Mr Petman, a prominent layman of the Methodist Church, the Oak Opening Estate.
Split into simpler sentences: The estate was first owned by J. W. Waugh, and it was located in close proximity to were the GB Pant Hospital (Ramsay Hospital) now stands. It was purchased from a Mr. Petman, a prominent layman of the Methodist Church, as the Oak Opening Estate.