Career
He made his first fortune by supplying goods to the British Army during their campaigns against the Jacobites and in Flanders during the Seven Years" War, 1756-1763. He subsequently branched out into banking, property (he developed Grangemouth in 1777) and was a major backer of the Forth and Clyde Canal which happened to run through his estate, centered on Kerse House, near Falkirk. He bought the Aske Estate, near Richmond in North Yorkshire in 1763 from Lord Holderness for £45,000 and proceeded to enlarge and remodel it in Palladian taste by the premier Yorkshire architect, John Carr, who also designed new stables.
His house in Saint Andrew Square, Edinburgh, designed by Sir William Chambers, became the headquarters of the Royal Bank of Scotland in 1825.
The facade and later 1857 ceiling feature on the current designs of the banknotes issued by the Royal Bank. He purchased Leoni"s grand house near London, Moor Park, for which he ordered a set of Gobelins tapestry hangings with medallions by François Boucher and a long suite of seat furniture to match, for which Robert Adam provided designs: they are among the earliest English neoclassical furniture.
A pair of marquetry commodes in the French taste by a French cabinet-maker working in London, Pierre Langlois, is at Aske. Capability Brown worked on the park at Aske and provided a design for a bridge.
In the 1770s, Sir Lawrence turned to Robert Adam for further remodelling and designs for furnishings.
Sir Lawrence married Margaret Bruce, and they had one son, Thomas Dundas.