 During the 20th century the western parts of the yard were leased to P & A Campbell Ltd, operators of the White Funnel Line of paddle steamers as a maintenance base.The yards have been little altered recently except for the replacement of the three-storey 'A' block over the sluice paddle room resulting from bomb damage in World War II.Underfall Yard has been refurbished under the management of the Underfall Yard Trust (previously Underfall Restoration Trust) thanks to the Heritage Lottery Fund, AiM Biffa Award, and donations from various organisations and trusts.