Robertson records that Francis Montgomery of Giffin had added to the old square castle "..a great addition in a more modern stile." He also comments on the extensive tree planting that was in the shape of a cross, "according to the taste of the times". It has been suggested that Coldstream Mill was built at this time and Robertson comments on the excellent lands of Cauldstream. Dr. Robert Patrick had planned to build a new mansion in the vicinity of the ruins of the castle and had already "laid down the gardens".