Pantile first, Welsh slate later: Driffield's older roofs
Evidence of thatch has gone from the northern conservation area, where the oldest covering left is the traditional non-interlocking clay pantile, some of it likely to date back to the early 19th century. Pantile stayed the usual choice until better transport made Welsh slate competitive. Terracotta plain tiles are found there too, but on run-of-the-mill buildings they were always likely to lose out: more tiles to a given area, and longer to lay.
South of the centre, the covering dates the building. Georgian properties, which hold sway at River Head, have locally produced clay pantiles; the later ones Welsh slate, which the council's appraisal ties to the railway. Lockwood Street, opened in 1876, is described as a street of brick and slate, and slate of that age is usually at the stage where the nails fail before the slates do.
Most properties are two storeys, but the town's status shows in its three-storey ones, and several late Victorian and Edwardian elevations oversail their older neighbours, Market Place and Middle Street North most of all. Further south the council identifies four groupings of building: Georgian, late Victorian, Edwardian and late 20th century, the last on infill plots.
Two conservation areas cover central Driffield, Driffield (North) and Driffield (South), both designated in 1980, and the southern one contains thirteen listed buildings. Inside a conservation area some permitted development rights are restricted, roof extensions and external cladding among them. A covering change, a front-slope window or removing a chimney may need consent, and listed buildings always need it; ask East Riding of Yorkshire Council.