In 1809, Robert Haldane sold his remaining estates and purchased the estate of Auchingray, in Lanarkshire — a desolate moor of 2000 acres, on which grew only a single tree; but through his vision and work it soon had forests of larch, fir, birch, ash, and coppice. This, however, was not his chief occupation, for a large portion of his time was spent in the study, where his preparations for the pulpit equalled those of the most ambitious or painstaking minister.
The house was extended in 1924 but later was gutted by a fire. It is now a ruin.