I am aware of this:

First character boundaries

However, this only gives you the borders for, for example, 'L' rather than:

L1, L10, L11, L12 etc.

Can I obtain these fine grained border data from somewhere free? Thanks.


Take a look at this site: UK Postcodes

It has the CSV data for all the boundaries. You can also download a KML file at each level to display in Google Earth, or QGIS where you can do more analysis.

Unfortunately you may need to individually download each Area to get detail for the next level down.

  • Thanks. That's where I got the borders for the UK postcode areas from. Unfortunately, I cannot see any outcode borders such as CH1. Thanks. – cs0815 Mar 3 '15 at 16:24
  • That's what I meant by each area - you need to select CH from the list and then click 'Download the individual postcode data in KMl format' to get data of the next level down (CH1, CH2 etc). – MAJ742 Mar 3 '15 at 16:28
  • UK postcode boundary polygons opendoorlogistics.com/downloads you might need to reproject for overlaying on Google Maps ask on GIS Stack Exchange gis.stackexchange.com how to. – Mapperz Mar 3 '15 at 18:44
  • Actually this site does not provide border data (i.e. polygons) but only point data. – cs0815 Jul 10 '15 at 19:32
  • are you sure about points and not polygons? i converted the first shapefile into kml and got this bl.ocks.org/d/34f9523a6b51e9dfed66 – albert Jul 11 '15 at 21:31

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