OS MasterMap data availability dates

Latest OS MasterMap release details

  • The latest OS MasterMap Topography and ITN data release is:
Publication date Extraction date
14 November 2016 20 October 2016

All layers are available to order on DVD, via FTP or through the Download centre.

Publication notes

Details on Content improvement areas, included in this refresh are available here.

Known Topography Layer issues:

  • There is well known issue where 4 Cartographic Symbols have an incorrect orientation of 360° (osgb5000005188681989, osgb5000005187838725, osgb5000005190309740 and osgb5000005189829653).

Known ITN issues:

  • In this release the ITN COU and FVDS TOID counts do not match which will result in having a surplus TOID in your database which isn’t in the FVDS file. The surplus TOID is a Ferry Link, osgb4000000003267855. We advise customers to either remove this TOID from their holdings or ignore the discrepancy as it will be fixed for the next release.
  • The A82 Primary Route feature is not contiguous across its extent. The network is complete and the RoadLinks are not missing (231555.772, 801217.248). However, the RoadLinks, osgb4000000003553719, osgb5000005170682014, osgb4000000003508991  and osgb4000000003543522 are not referenced by the following Road feature osgb4000000004307764, see image.
  • There is a missing link along Southwall Road, Deal (637041, 152684), see image.
  • There is a missing link along Church Street, North Cave (489475, 432611), see image.

OS MasterMap Topography Layer contains a very small number of overlapping polygons and 'holes' in the data. These problems are transient and the application of normal Change Only Updates (COU) will remove them in due course.

All previously published errors have been corrected.

For past messages, please see the archive.

Urban Path Network updates

This release is validated against and aligned to OS MasterMap® Integrated Transport Network™ released on 22 August 2016.

Product Latest version
OS MasterMap ITN Layer Urban Paths – country zip files October 16 
OS MasterMap ITN Layer Urban Paths – 5x5 tile download October 16

Future publication of Urban Path Network

Below is our future schedule of publishing Urban Path Network and the ITN product release with which it will have been validated and aligned. We aim to keep these schedules up to date, but you should treat these dates as a guide only as they are subject to change. The ITN used for validation and alignment will be confirmed when Urban Path Network is published.

Urban Path Network OS MasterMap ITN Layer
January 2017 14 November 2016

OS MasterMap Sites Layer updates

OS MasterMap Sites Layer is updated every six months. Please see the table below for the latest release date:

 OS MasterMap Sites Layer  October 2016

Building Height Attribute updates

Building Height Attribute is an alpha release currently under the development. Please see the table below for the latest release date:

 Building Height Attribute  December 2014

Future publication dates

Below is our future schedule of extraction and publication dates for OS MasterMap Topography and ITN layers. We aim to keep these schedules 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.

Publication date Extraction date
19 December 2016 01 December 2016
30 January 2017 12 January 2017
13 March 2017 23 February 2017
24 April 2017 06 April 2017

Please note that these dates only apply to bespoke polygons, 'area of interest' orders and national sets – please see Managed GB Dataset information if you take a full or change only supply of a complete OS MasterMap layer.

Past publication dates

The release dates for the previous year OS MasterMap Topography, ITN and Address Layer 2 data were:

Publication date Extraction date
03 October 2016 08 September 2016
22 August 2016 04 August 2016
11 July 2016 23 June 2016
31 May 2016 12 May2016
18 April 2016 1 April 2016
07 March 2016 18 February 2016
25 January 2016 07 January 2016
14 December 2015 27 November 2015
02 November 2015 15 October 2015
21 September 2015 03 September 2015
10 August 2015 23 July 2015
29 June 2015 11 June 2015