 On 17 July 1821 he was raised to the peerage as Baron Ravensworth, of Ravensworth Castle in the County Palatine of Durham and of Eslington Park in the County of Northumberland.At Ravensworth he demolished the old 1724 house in 1808 and replaced it with a substantial mansion in the Gothic style designed by architect John Nash.He also employed George Stephenson from 1804 at his Killingworth colliery and encouraged and financed him in the development of steam power which was vital for the improvement of the efficiency of the wagonways which transported coal from the pit to the River Tyne.