Pentlands House, Main Street, Carlops

Pentlands House is a pair of early to mid-19th century terraced houses located on Main Street, Carlops. They adjoin the north end of a long row of six former weaver's cottages, which are listed separately. The houses are constructed of sandstone rubble with smooth ashlar dressings. A distinctive feature is the round-arched window openings on the first floor of the north gable.

The windows are predominantly timber sash and case with four panes of glazing. The roof is covered in grey slate, with broad gable end and ridge stacks topped with tall clay cans. Cast iron rainwater goods are also present.

The interior retains some early to mid-19th century details, including moulded timber doorframes and a niche recess on the ground floor. A fragment of a late 18th century stone fireplace, featuring round-corbelled details, is located at Elphinstone. These corbelled details were originally found in all the kitchens of the adjoining weaver's cottages, but are now unique to this fireplace.

Pentlands House forms part of a group of listed buildings, which includes a row of six cottages (Ferndale, Houlet, Amulree, Finlaggan, Blinkieknowe, Birkenbush), a row of three cottages (Ashley, The Biggin, Weavers), Carlops Church, Pentland and Elphinstone, the Allan Ramsay Hotel, and a row of four cottages (Springbank, Carberry, Langskaill, Jess).

The village of Carlops was established in 1784 by Robert Brown, the laird of Newhall, and the houses are prominently located, terminating the village to the south with Carlops Church. It is believed that Thomas Elphinstone may have added a storey to two existing single-storey weaver's cottages in 1812. As the textile industry declined, Carlops became a health resort, and retains its traditional village character due to its linear layout along the Edinburgh to Biggar road.