794 Seacoast Road, Castlerock, Coleraine, Co. Londonderry, BT51 4SD

Detached single-storey holiday home built around 1935, clad entirely in corrugated iron with a front entrance porch. The building is rectangular on plan, oriented north facing Seacoast Road, and sited on elevated ground overlooking the north Londonderry coast.

The structure features a shallow pitched corrugated iron roof with iron ridge and uPVC rainwater goods. The corrugated iron-clad walls sit on a projecting cement plinth course. Window openings are square-headed with uPVC replacements. The front elevation is three openings wide, centred by an entrance porch with a shallow pitched corrugated iron roof, fixed-pane timber windows to the cheeks, and a replacement timber glazed and panelled door. The blank east elevation is abutted by a rendered chimneystack and a small outbuilding. The rear elevation incorporates a full-span lean-to addition clad in corrugated iron beneath a catslide roof. The west gabled elevation has a single off-centre window.

This building is one of approximately twenty-five small dwellings erected in the mid-1930s on a narrow strip of land between the railway line and coastal cliffs. The land had been leased from James McKay, and individual occupiers built separate structures for seasonal summer use. This particular example appears to have been erected by Thomas Gardiner and Andrew Hunter, entering valuation records in 1934 at a value of £4, with seasonal lettings of £6 to £7 per month in July and August, and £4 in June and September. Construction cost was £70–5s, built on concrete foundations. Like others on the site, it had no electricity, water supply, or plumbing; occupants used lamps for lighting, brought water from elsewhere, and relied on dry closets for sanitation.

The building exemplifies the 'plotland' development type common in interwar Britain and Ireland, where marginal land acquired cheaply during agricultural depression was subdivided and sold as individual plots. Cheap, improvised dwellings were constructed using improvised materials or prefabricated kit forms, often avoiding local authority oversight and planning controls. Though frequently condemned by conservationists as disfiguring rural landscape, such developments democratised countryside access for ordinary people. Few original features survive, but the building retains character through its diminutive proportions and traditional early twentieth-century materials.