The house has a Category A listing which is the highest grade of listing given by Historic Environment Scotland, a recognition of its exceptional architecture that is incredibly rare (not least for a post war building).

Below is an abbreviated version of Historic Environment Scotland’s listing description:

This is a fine early example of the work of the internationally renowned Borders based architect Peter Womersley (1923-1993), a signature work embodying his characteristic geometric modular design and surviving in its original condition to both the exterior and interior.

The house was commissioned in 1956 by Bernat Klein, a well respected textiles designer and prominent member of the Borders art scene who incorporated his own textiles into the original design. Mr Klein had seen Womersley's earlier work, the Grade II listed Farnley Hey (1954) in Huddersfield, Britain's best known example of the American contemporary style.

Womersley specialised in creating an expansive feel within a house… by using minimal circulation spaces, choosing to treat the house as one entity. He defined spaces with changing floor levels, using flush cupboard blocks as walls with 'secret' doors leading to separate areas. He was inspired by the Californian 'case study homes' which employed open planned spaces surrounded by shady gardens.

The house was designed to be used as a commercial office space for meetings as well as a home; the grid plan allowing for possible further expansion as part of the design brief. The open plan playroom area designed with sleeping alcoves for the children was intended to be divided into separate bedrooms at a later stage.

This is a geometric modular building that sits successfully in its natural landscape due to its simple flat roofed design and the clever use of the open yet enclosed courtyard spaces which links the house to its environment.

[The house has a] 14 by 5-bay rectangular-plan Modernist modular flat-roofed house incorporating courtyard space and open car port set on gently sloping site in cleared woodland. Makore timber-framed construction on 8ft grid pattern over concrete raft; white horizontal base course band; higher level band forming clerestory and continuous white facia board at eaves with aluminium trim. Asymmetrical coloured vitroslab panels, clear plate plyglass glazing, and vertically boarded Makore denote living, bathroom and sleeping areas. Entrance screen with five horizontal panels formerly coloured, with later surface tile mosaic added by Bernat Klein. Later addition of studio with contemporary detailing partially infilling former open courtyard and pond to East corner (1982).

Plain timber doors; single glazed metal-framed sliding patio doors; double-glazed, timber-framed fixed lights incorporating horizontal coloured glass panels in yellow and green at intervals; plain varnished timber vertically boarded sections. Internal concealed rainwater drainage to soakaways.

Fine Modernist open plan interior with original design scheme in place including bespoke fitted furniture and storage sections, travertine and tiled flooring, polished obeche wood ceiling, light fittings and contemporary furniture. All textiles were specially designed, dyed and woven by Bernat Klein. Open plan main living space with sunken central floor area, floor to ceiling glazing, central hearth, and fitted timber cabinets with integral lighting. Panelled African hardwood walls including indigbo, rosewood and walnut, with flush hidden doors leading to bedroom suites. Main bedroom suite has flush cupboards on three walls with characteristic 'bedhead' wall of horizontal strip walnut. Original cobalt blue tiles to kitchen floor and simple timber units.