Ordnance Survey provides a dedicated website in support of the electoral process at http://www.election-maps.co.uk.

Election officials, candidates and party workers can locate precise electoral boundaries anywhere in Great Britain simply by keying in the appropriate local authority or constituency name. Once the relevant area maps are displayed on screen, users can select from a complete range of up to 10 different layers of electoral and administrative boundary overlays, right down to ward level.

A couple of mouse clicks allows any combination of boundaries to be switched on and off at will. There’s also a postcode search facility that instantly highlights any particular location on large-scale constituency maps. These detailed maps, which even show many individual buildings, will help canvassers and leaflet distributors to home in on the precise areas that they need to visit.