Marchmont House is an imposing ‘Grade A’ listed Palladian mansion built in 1750 by Hugh Hume-Campbell, 3rd Earl of Marchmont. Long thought to have been designed by William Adam, it is possibly the work of the celebrated architect James Gibbs, and enacted by Thomas Gibson. Major changes were made between 1914 and 1917 when the then owner, Robert Finnie McEwen commissioned the eminent Scottish architect Sir Robert Lorimer to enlarge the house and it stands today as perhaps the finest example of his ‘grand’ house refurbishments. Situated at the heart of the Marchmont Estate, it lies to the east of the village of Greenlaw in the Scottish Borders, 19 miles west of Berwick-upon-Tweed and just 40 miles from Edinburgh.