 Later owned and extended by Major Andrew Coats, of the Coats family of Paisley, Italian plasterwork was installed in the public rooms in 1920.The entire building was restored and enlarged over the course of the 1920s by the architect Francis William Deas, who also laid out most of the current landscaping.The grounds incorporate the ruins of the original Toward Castle, the Chinese ponds, wooded areas, access to the shore, and views over the Firth of Clyde.