sentences:  The ruin is a Scheduled Ancient Monument and is in the lowest category of listed architecture, Grade II, due east of Dorking railway station in Dorking and due west of Reigate.Although close to the river and edge of the course it is surrounded by "Betchworth Park" Golf Course named after the village east.In 1798, Henry Peters bought Betchworth Castle and spent considerable money renovating it to be a comfortable family home.