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OSM UK Postcode Mapping

Tools and Reports

OSM Postcode Mapping Stats
Details of the number of postcode units mapped in each postal area and district.
OSM Value Errors
List of erroneous addr:postcode values found in OpenStreetMap data for the UK.
OSM Location Discrepancies
List of OSM objects where there is a discrepancy between the object's location and the centroid of its addr:postcode from Code-Point Open.

Resources for Postcode Mapping

Code-Point Open
Official UK data from Ordnance survey, available for re-use under the Open Government Licence v3 (hence suitable for use in OSM). Includes all postcodes, but only includes a single centroid location for each unit.
Ragged Red: Displaying Code-point postcode centroids
Details of tiles displaying Code-Point Open Centroids, that can be loaded in OSM editors, or shown on the OS Compare Map.
FHRS/OSM Comparison
Tool for comparing mapping of food outlets with official hygiene rating data.
New Postcodes
Map showing newly created postcodes. Useful in well-mapped areas, where people want to check the new devlopments are being added to OSM.
British Postcodes on OpenStreetMap
Blog post from 2013.
Objects with Missing Postcodes
Overpass turn query to show OSM objects with street addresses (addr:street=*) but no postcode (addr:postcode=*).