On 2 April 2010 22:57, Lester Caine <lester at lsces.co.uk> wrote: > Actually that still needs to be agreed. Do you add the 'postcode' as a tag to > each house, or just create a relation for a post code? Depends how many houses I suppose, the more houses there are the efficient it would be to use a polygon as there will be less redundant information.