I have followed the saga of opening up Address datasets in UK.
If we can not open PAF or NLPG then let build an open set.
See some developments:
http://knowwhereconsulting.co.uk/twos-company-threes-a-crowd/

This would hopefully be opportunity to get away from distortions of the PAF’s POSTTOWN based on delivering mail.
e.g.Penistone is not in SHEFFIELD, even if PAF has it as POSTTOWN for addresses in Penistone, Yorkshire.

Let get to know our Traditional Counties again.