November 2019

No limit

CSV, NTF

N/A

N/A

OS Digimap Licence

© Crown copyright and database rights 2020 Ordnance Survey (100025252)

1:10,000

N/A

• Market analysis
• Statistical analysis
• Crime pattern analysis

• Official User Guide: http://www.ordnancesurvey.co.uk/docs/user-guides/code-point-user-guide.pdf
• Ordnance Survey Product Information: http://www.ordnancesurvey.co.uk/business-and-government/products/code-point.html
• Ordnance Survey Support Information: http://www.ordnancesurvey.co.uk/business-and-government/help-and-support/products/code-point.html

There are three versions of Code-Point available through Digimap:

• Code-Point - a list of all the current postcode units in Great Britain including co-ordinates
• Code-Point Open - generated from the same underlying data as Code-Point but with fewer attributes
• Code-Point with Polygons - polygon boundaries showing groupings of delivery points which share the same postcode.

Code-Point provides a National Grid reference for each unit postcode in Great Britain. Multiple postcodes in a single block of flats or offices will share one National Grid reference. With each co-ordinated point there is information about the postal delivery points within the postcode unit and codes for a number of administrative boundaries, which coincide with the postcode unit. It is Code-Point that is used in Digimap when a postcode search is entered to locate a map.

Code-Point contains the following information:

• Unit postcode (a unique reference);
• Positional quality indicator (PQI);
• PO box indicator;
• Total number of delivery points within the unit postcode;
• Number of delivery points with the same PQI as the unit postcode itself;
• Number of domestic delivery points;
• Number of non-domestic delivery points;
• Number of delivery points which are PO boxes;
• Number of premises with a matched address;
• Number of unmatched delivery points;
• National Grid Code-Point location co-ordinate (CPLC);
• Country code;
• National Health Service regional health authority code;
• National Health Service health authority code;
• Administrative County code
• Administrative district code (includes Unitary Authorities);
• Administrative ward code;
• Postcode type.

Accuracy and Resolution

Each Code-Point location co-ordinate (CPLC) is quoted to a resolution of one metre. The CPLC is allocated to a point that falls within the extent of the unit postcode. This point coincides with the nearest delivery point to the calculated mean position of all the delivery points in the unit. The delivery point mean is calculated using ADDRESS-POINT, which contains a 0.1m resolution Grid Reference for each delivery point.

http://www.ordnancesurvey.co.uk/docs/user-guides/code-point-user-guide.pdf