In the 1980s the house was restored and divided for sale as eighteen private apartments, while the surrounding Dalzell estate is now owned by North Lanarkshire Council.

Sir Robert Dalzell forfeited the lands around 1342, for residing in England without the King's consent,[2] but they were restored through marriage in the 15th century.

In 1645 the Earl of Carnwath granted the Dalzell estate to his nephew James Hamilton of Boggs, who built the first major extensions to the tower house, adding the south wing around 1649.

Architect Robert William Billings carried out extensive restorations to the earlier buildings, and added a new north wing.

Billings had recently published The Baronial and Ecclesiastical Antiquities of Scotland (1852), four volumes of engravings of Scottish architecture, and he drew heavily on this source material in his work at Dalzell.