Get the latest dates when OS MasterMap data is refreshed. Plus you can find future refresh dates.
OS MasterMap Topography Layer
The latest OS MasterMap Topography data release is:
| Publication date | Extraction date |
| 19 April 2022 | 31 March 2022 |
To order data on physical media or secure file transfer protocol (SFTP), go to OS Orders. To request data via download, go to OS Data Hub.
Publication notes
As part of our commitment to improving our processes we have updated how we supply release notes to include more information. This will include all refresh data for the OSMM Topography layer including the tidal update program.
Download our OS MasterMap Topography release notes (PDF).
Future refresh dates
Below is our future schedule of extraction and publication dates for OS MasterMap Topography Layer. We aim to keep this schedule up to date, but you should treat these dates as a guide only as they are subject to change. The extraction date will be confirmed on the publication date.
Please note these dates only apply to bespoke polygons, 'area of interest' orders and national sets.
| Publication date | Extraction date |
| 30 May 2022 | 12 May 2022 |
| 11 July 2022 | 23 June 2022 |
| 22 August 2022 | 04 August 2022 |
| 03 October 2022 | 15 September 2022 |
Past publication dates
Here are the dates when OS MasterMap Topography Layer was previously refreshed:
| Publication date | Extraction date |
| 28 February 2022 | 10 February 2022 |
| 24 January 2022 | 06 January 2022 |
| 06 December 2021 | 18 November 2021 |
| 25 October 2021 | 07 October 2021 |
OS MasterMap Sites layer updates
OS MasterMap Sites Layer is updated every six months. The latest update is from April 2022.
Download our OS MasterMap Sites Layer release note (PDF).
Building Height Attribute updates
Building Height Attribute is updated every six months. The latest update is from April 2022.
Download our Building Height Attribute release note (PDF) and Coverage Map (PDF).