Building value from knowledge

Summary
Architects, surveyors, planners and, in fact, almost all property practitioners use maps in their day-to-day professional lives. The vast majority of these maps will be directly or partially based upon Ordnance Survey (OS) mapping data. Whether these maps are accurate, up-to-date, correctly scaled or even licensed may be unknown and it is down to the user to ensure the maps are fit for purpose and that they are adequately licensed. This section provides some facts about maps, their strengths and their failings and suggests ways to solve some of the most common problem areas.

This section is maintained by Graham Allison, managing director of Streetwise.