Postcode Address File (PAF) – W West London

This instant download contains circa. 322,329 Postcode Address File (PAF) addresses / delivery points.  That’s every address, postcode and grid reference with a postcode area prefix of ‘W’ (West London and all surrounding W postcoded addresses).   Addresses within the file are updated quarterly to ensure they remain current, and our clients receive an inclusive complete refresh every three months as part of the service, for no additional fee.

Typical PAF Applications

The Royal Mail’s West London/W Postcode Address File (PAF), is often used to capture, create and or maintain in-house address lists.  This includes WEB registrations, forms and customer databases to reduce the number of returned or undelivered items from mailing programs.  Obviously, there are many more applications that you can use the PAF data for, including mailing, planning leaflet distribution, logistics, navigation to name just a few!  This West London/W PAF download is the only official address database, and is provided by Royal Mail.   It is without any doubt the definitive, most up-to-date, and comprehensive address database available.

  • Clean addresses
  • Cheaper source as a mailing file
  • Reduce postage costs through bulk mailing (e.g. Mailsort)
  • Reduce the amount of undelivered mail
  • Preservation of brand image
  • Improved accuracy of customer and prospect analysis
  • Great for analysis
  • Perfect for grid referencing


Royal Mail’s ‘West London/W’ (every UK address with a postcode that starts with ‘W’) download opens into two file formats: (1) Comma Separated Variable (CSV) and (2) Excel (XLS), with header records.  You’ll initially receive one compressed file (ZIP), which opens into the two output types.  CSV files will open with most software applications, including but not limited to Excel, Word, Notepad, Access, SQL etc.   If you require the data supplied in another format then we will be more than happy to try and accommodate you at no extra cost.

Data fields present within the product file:

  • UDPRN (Royal Mail Unique Reference Number)
  • Organisation Name (blank if residential address)
  • Department Name (blank if residential address)
  • PO Box (if applicable)
  • Building / House Name (if applicable)
  • Sub Building Name (if applicable)
  • Building / House Number
  • Thoroughfare
  • Street / Road Name
  • Double Dependent Locality
  • Dependent Locality
  • Post Town
  • Postcode
  • Postcode Type
  • DPS
  • SU Organisation Flag (blank if residential)
  • X Coordinate
  • Y Coordinate
  • Latitude
  • Longitude


Royal Mail’s West London/W Postcode Address File contains approximately 322,329 delivery points / addresses; that’s every known delivery point / address that begins with the postcode area prefix of ‘W’.


Downloads are supplied as licensed products, allowing unlimited reuse of the file content for 12 months.    You may cancel the licence at any time without penalty.  The licence fee you pay covers the considerable effort taken to compile and update the product, including our manual correction and verification, and finally verification against the latest Royal Mail and Ordnance Survey databases. On or before the 11th month, we will write to you, offering to extend the licence for a further 12 months or to let it expire.


As part of the fee paid, we will automatically send you a full product file refresher every 3 months for no additional fee.  This will ensure the postcodes and associated content remains current.


We have developed internal quality processes to help ensure the data you purchase is fit for purpose.  If you are for some reason not satisfied with the data or our work, we offer a no quibble refund in exchange for your feedback.

Buy now…

£80.00 / year

Instant Download: A link to the data, is emailed upon payment.  We will also email a link to the updated version of this file every three months (included in the fee you pay).  The download opens into two file formats: (1) Comma Separated Variable (CSV) and (2) Excel (XLS).

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