Data ordering and currency

To get access to the OS NGD you must first log into the OS Data Hub. The OS NGD will be accessible via both the Premium Plan and Public Sector Plan on the OS Data Hub.

Geographic filtering

There are three options within OS Select+Build in relation to the geographic extent of your order. These are:

• Great Britain: Receive all data for the whole of Great Britain.

• Customer Specified Area: Draw an area of interest (AOI) and only receive the data which intersects this area.

• Pre-defined Area: Select a pre-defined area, and only receive the data which intersects this area.

The only exception to the above is the OS NGD Address Islands Collection; this collection contains data for Northern Ireland, the Isle of Man, and the Channel Islands, and it will be provided as a full supply of data independent of any geographic filtering applied to your OS NGD recipe.

COU Supplies are not available for AOIs. Monthly Full Supplies are available for AOIs.

Order update options

When accessing the OS NGD, the following order update options will be available:

• One Off Full Supply

• Regular Full Supply

• Change-Only Update (COU; after an initial Full Supply)

• No Update

The following frequencies will be available dependent on the type of order you place:

• Daily Supply: This will provide you with the latest updates OS have loaded and verified for publication since the previous day as a COU file.

• Monthly Supply: Either a Full Supply or COU Supply of all the changes which have occurred in the previous month.

• Annual Supply: A Full Supply of the data to show how the data looked at the end of each year.

Further details about the options available to you can be found further down on this page.

Please note:

• Monthly orders provide data for the 1st of the month. For example, if you ordered a Monthly order on 17 September 2024, you would receive the data as it was on 01 September 2024.

• If you select an Annual Full Supply frequency for your OS NGD data order in OS Select+Build, we will provide you with the data as it was on 01 January of the current year. This means if a new feature type or a new data schema version of an existing feature type was released after 01 January and you order either of these as part of your Annual Full Supply, you will receive an empty data package for the newly released feature type / new data schema version of an existing feature type. The data for the new feature type / new data schema version of an existing feature type will then be included in your supply on the next 01 January after the release.

  • For example, the March 2025 OS NGD data enhancements release contained 3 new feature types (Building Access Location, Crowd Sourced Name Point, and Street Light), and 11 new data schema versions (Building v4.0, Building Part v2.1, Land v3.1, Path Link v2.0, Rail v3.1, Road Link v4.0, Road Track Or Path v3.1, Site v2.2, Site Access Location v2.0, Structure v3.1, and Water v3.1). As per the bullet above, this data will not be part of Annual Full Supply orders until 01 January 2026.

Update files

If you choose to receive a COU supply for your CSV data, this can be provided on either a daily or monthly frequency. In both cases, your COU file will contain any changes which have been made to the underlying data within the selected time frequency. If no changes have been made to a selected feature type of your choice, then you will receive a blank COU file.

File supply

If you use OS Select+Build to access the OS NGD, then a separate download file will be provided for each feature type you order. For example, if your selected theme has two feature types you will be supplied with two separate files (CSV or GeoPackage) as part of your order.

Ordering combinations

The following tables summarise the different options available to you dependent on what you specify when ordering your data through OS Select+Build.

For the purposes of the tables below, the following definitions are being used:

• Unfiltered means a Great Britain supply with no further attribute filters applied.

• Filtered means an order for data which either has a geographic filter applied or an attribute filter applied.

GPKG files

Initial supply	Update options
Daily (filtered / unfiltered)	N/A
Monthly (filtered / unfiltered)	Monthly Full Supply
Annual (filtered / unfiltered)	Annual Full Resupply with data from 01 January

Please note that COU supplies are only available for CSV files; they are not available for GeoPackage files.

CSV files

Initial supply	Update options
Daily (filtered)	N/A
Daily (unfiltered)	Daily COU
Monthly (filtered)	Monthly Full Supply
Monthly (unfiltered)	Monthly COU or Monthly Full Supply
Annual (filtered / unfiltered)	Annual Full Resupply with data from 01 January

You can use the OS Downloads API to manage your daily / monthly COU supply of OS NGD data.

Currency of OS NGD data

OS Select+Build and OS NGD API – Features

Whether accessing OS NGD data through OS Select+Build or OS NGD API – Features, the following currency of the data will apply:

Theme	Collection	Update frequency
OS NGD Address (*N.B. Not available in OS NGD API – Features)	Both OS NGD Address collections	Daily
OS NGD Administrative and Statistical Units (*N.B. Not available in OS NGD API – Features)	OS NGD Boundaries	Biannual
OS NGD Buildings	OS NGD Buildings Features	Daily
OS NGD Geographical Names	OS NGD Named Features	Daily
OS NGD Land	OS NGD Land Features	Daily
OS NGD Land Use	OS NGD Land Use Features	Daily
OS NGD Structures	OS NGD Structure Features	Daily
OS NGD Transport	OS NGD Transport Features	Daily (apart from the Street Light Feature Type which is updated monthly)
	OS NGD Transport Network	Monthly
	OS NGD RAMI	Monthly
OS NGD Water	OS NGD Water Features	Daily
	OS NGD Water Network	Quarterly

*Please see the 'What data is available' (for OS NGD API – Features) page for more information on what features are available in this API.

For collections that are not updated daily, the table below provides the date of the last update. It also shows the version of the OS MasterMap product to which the OS NGD data corresponds:

Collection	Last Updated	Corresponding OS MasterMap product
OS NGD Boundaries	10 October 2024	Boundary-Line – October 2024 publication
OS NGD Transport Features – Street Light Feature Type only	06 May 2025	N/A
OS NGD Transport Network	06 May 2025	OS MasterMap Highways Network – May 2025 publication
OS NGD RAMI	06 May 2025	OS MasterMap Highways Network – May 2025 publication
OS NGD Water Network	29 April 2025	OS MasterMap Water Network – April 2025 publication

OS NGD API – Tiles

When accessing OS NGD data through OS NGD API – Tiles, the data currency is weekly for the basemap and variable for the three data overlays – please see the 'What data is available' (for OS NGD API – Tiles) page for more information on update frequency, available feature types and available attribution for this API.

Please note:

• The OS NGD Address Theme is only available via OS Select+Build and is not available via OS NGD API – Features or OS NGD API – Tiles.

• The OS NGD Administrative and Statistical Units Theme is only available via OS Select+Build and OS NGD API – Tiles and is not available via OS NGD API – Features.

• Feature types in the Routing and Asset Management Information (RAMI) Collection (of the OS NGD Transport Theme) are only available via OS Select+Build and OS NGD API – Features and are not available via OS NGD API – Tiles.

• The Waterbody Catchment and River Basin District Catchment Feature Types (of the Water Features Collection in the OS NGD Water Theme) are not available via OS NGD API – Features but they are available via OS Select+Build and OS NGD API – Tiles.