What conflicts may arise when designing extensions to historical buildings?
The chief difficulty is likely to be obtaining a match for the external materials, particularly if facing brickwork is used and this is of non-metric dimensions or is bedded in lime mortar, or if the roof is finished in slates or clay tiles. If timber windows or doors add to the character of the existing building, then you might find difficulties in locating a woodworker capable of manufacturing products of similar external profile that would comply with the current Building Regulations. If a staircase is planned within the extension you might find it difficult to maintain a consistent eaves line between the original building and the planned element. If the extension is to include kitchen or sanitary facilities you might wish to avoid external downpipes or stench pipes, or to specify these in materials and cross sections that match those of the original building. The Society for the Protection of Ancient Buildings, the Georgian Society, the Victorian Society, the Twentieth Century Soci
