Update 18 February 2026
The download containing Council Tax address data disclosed by Wiltshire Council in November 2025 and originally linked in the post below has been removed as of today, following receipt of further correspondence from the Council. A second download containing a geocoded version of the data has also been removed.
The Council's new position is that it made an error when it granted permission for re-use of the addresses in the Council Tax list under the Open Government Licence, because the addresses contain third party rights that the Council was not authorised to license.
You can download my correspondence with the Council to date: CT_address_list_Wiltshire_Council_CAS-6462_[NO_DATA_correspondence_only].zip (0.53 MB).
It seems likely that this change in the Council's position follows an intervention from Ordnance Survey and/or GeoPlace LLP as anticipated in my recent post.
I am seeking clarification from the Council in further correspondence and some or all of the data may be republished at a later date.
The remainder of this post is as originally published in November 2025, with the exception of the download links and removal of a screenshot.
This is the latest in an occasional series of blog posts about the campaign for open address data in the UK. Previous posts are listed at the bottom.
In this post, I make available a new open address dataset released by Wiltshire Council.
Background
As described in previous posts, last year at my request Leeds City Council published a new list of all domestic properties in its area, including full addresses and Council Tax bands, with notice of permission to re-use the data under the terms of the Open Government Licence. I have subsequently requested equivalent datasets from a number of other English councils.
I have created a landing page on my Datadaptive site with download links and other information about the Council Tax address datasets released as open data so far:
Release from Wiltshire Council
The latest council to release its Council Tax address list is Wiltshire Council in South West England. The Council disclosed the requested data under the FOI Act without any difficulties, and granted permission for re-use under the terms of the Open Government Licence (OGL).
You can download my correspondence with the Council, including the information as disclosed: CT_address_list_Wiltshire_Council_CAS-6462.zip (2.59 MB) [link removed].
Thanks to Wiltshire Council's Information Governance Team for facilitating the disclosure and open licensing of this data.
Geocoded open version of Wiltshire Council address dataset
I have created a geocoded version of the Wiltshire Council address dataset, which you can also download: WILTSHIRE_CTBANDS_ONSUD_202511.zip (14.0 MB) [link removed].
This dataset contains all of the information from the underlying Council dataset, other than the postcodes. Geographic coordinates and postcodes have been appended from the latest edition of the ONS UPRN Directory (October 2025). I have prepared the data in CSV and GeoJSON formats, suitable for re-use under the terms of the Open Government Licence. Please see the enclosed ReadMe file for additional information.
[screenshot of geocoded Wiltshire Council address data visualised in Google Earth – removed]
Previous posts related to the campaign for open address data in the UK
Durham County Council has released its Council Tax address list as open data (7 November 2025)
Sheffield City Council has released its Council Tax address list as open data (3 November 2025)
Islington Council has released its Council Tax address list as open data (28 October 2025)
Cornwall Council has released its Council Tax address list as open data (17 October 2025)
Rushcliffe Borough Council has released its Council Tax address list as open data (26 September 2025)
It took seven months but Hackney Council has released its Council Tax address list as open data (5 August 2025)
More open address datasets released by councils in England (30 January 2025)
Open data: are ONS's address data products legal? (7 January 2025)
Open address data published by Leeds City Council – Ordnance Survey intervenes to protect Royal Mail IP (24 November 2024)
Open address data published by Leeds City Council shows the way to a national open address file (16 October 2024)
Whatever happened to the UK Government's Open Address Register programme? (1 October 2024)
FOI release: Royal Mail's view on a House of Lords proposal for open address data in the UK (15 August 2024)
Open addresses in the House of Lords – what happened? (28 March 2024)
Thoughts on campaigning for open address data in the UK (30 June 2023)
UK address data: a primer and bibliography (last updated 30 November 2022)