Oatfield House, Main Road, Dirleton

Oatfield House is a possibly late 18th century farmhouse that has been significantly remodeled and extended. It now features a two-storey, L-plan layout with a single-storey wing to the west and a three-bay front. In 1909, architects Peddie and Washington Browne added a mansard attic, and there is also a modern addition at the rear. The exterior is constructed of harled rubble with painted ashlar dressings, raised cills, and rusticated quoins.

The south elevation is symmetrical, featuring a central pilastered doorpiece with an architraved door and a decorative fanlight. The windows in the flanking bays have pulvinated friezes. To the west, there is a recessed four-bay wing from 1909, which includes bipartite windows at the ground level in the center and right, as well as pedimented dormerheads for the first-floor windows. The outer left bay is raised and designed as an ogee-roofed pavilion, which has an arched doorway set in a raised ashlar panel. The north elevation is asymmetrical, with a pavilion in the outer right bay made of rubble, featuring a doorway and windows.

The sash and case windows have 12-pane glazing, and the roofs are slated with swept eaves on the mansard. The end stacks have moulded coping, with some being raised. The interior has been much altered due to subdivision.