The terrace house is of outstanding importance to the historical development of London. Many are individually of great architectural or historical significance. Their construction in planned streets and squares on the great private estates of central and inner London from the mid-seventeenth century onwards has bequeathed a remarkable legacy which has dictated the character and form of large areas of London. London terrace houses are a valuable resource. Their conservation makes good economic and practice sense.

The London Terrace Houses 1660-1860 leaflet is intended to assist local planning authorities in London, as well as owners and their professional advisers, in considering some of the most common forms of alterations to London terrace houses.