Pioneered by David and Barbara Martin, this form of record is thorough and well illustrated and is designed to demonstrate the origin and evolution of a building or group of buildings.

Such an approach clearly illustrates how the building looked and has been altered, indicating the extent of survival of early fabric, particularly useful when assessing the impact of proposed alterations to the building.

With an interpretive survey, detailed descriptions are given of the origin and development of the building complimenting the reconstruction drawings and supplemented by photographic evidence where appropriate. The detailed nature of the report is a valuable tool in determining the special character and significance of the building so essential to the planning process.