> For the complete documentation index, see [llms.txt](https://docs.os.uk/os-apis/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.os.uk/os-apis/accessing-os-apis/os-ngd-api-features/what-data-is-available.md). # What data is available ## **What feature types are available in OS NGD API – Features?** The following table documents the OS NGD datasets available through the OS NGD API – Features showing the themes, collections and lists the available feature types. OS NGD themes and collections have been created to group similar geographic entities and data types, making it quicker and easier to identify the data you need. The OGC API – Features standard also references feature collections, and in the context of OS NGD datasets, this is equivalent to feature types. The following naming convention has been applied to the feature collections:\ `theme-collection-featuretype-version`. Short codes have been used for both the theme and collection to keep the feature collection names manageable and not overly long. An example of the short codes used is below: `bld-fts-buildingline-1` Click on the theme to find out more information about the dataset on the OS NGD documentation site: | Theme | Collection | Feature type(s) | | ---------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | :arrows\_clockwise:[OS NGD Administrative and Statistical Units](https://docs.os.uk/osngd/data-structure/administrative-and-statistical-units) | 🆕 [GB Postcodes](https://docs.os.uk/osngd/data-structure/administrative-and-statistical-units/gb-postcodes) | 🆕 [Postcode Unit Area](https://docs.os.uk/osngd/data-structure/administrative-and-statistical-units/gb-postcodes/postcode-unit-area), 🆕 [Postcode Unit Point](https://docs.os.uk/osngd/data-structure/administrative-and-statistical-units/gb-postcodes/postcode-unit-point) | | [OS NGD Buildings](https://docs.os.uk/osngd/using-os-ngd-data/os-ngd-buildings) | [Building Features](https://docs.os.uk/osngd/data-structure/buildings/building-features) | [Building](https://docs.os.uk/osngd/data-structure/buildings/building-features/building), [Building Access Location](https://docs.os.uk/osngd/data-structure/buildings/building-features/building-access-location), [Building Line](https://docs.os.uk/osngd/data-structure/buildings/building-features/building-line), [Building Part](https://docs.os.uk/osngd/data-structure/buildings/building-features/building-part) | | [OS NGD Geographical Names](https://docs.os.uk/osngd/data-structure/geographical-names) | [Named Features](https://docs.os.uk/osngd/data-structure/geographical-names/named-features) | [Crowd-sourced Name Point](https://docs.os.uk/osngd/data-structure/geographical-names/named-features/crowd-sourced-name-point), [Named Area](https://docs.os.uk/osngd/data-structure/geographical-names/named-features/named-area), [Named Point](https://docs.os.uk/osngd/data-structure/geographical-names/named-features/named-point), [Named Road Junction](https://docs.os.uk/osngd/data-structure/geographical-names/named-features/named-road-junction) | | [OS NGD Land](https://docs.os.uk/osngd/data-structure/land) | [Land Features](https://docs.os.uk/osngd/data-structure/land/land-features) | [Land](https://docs.os.uk/osngd/data-structure/land/land-features/land), [Land Point](https://docs.os.uk/osngd/data-structure/land/land-features/land-point), [Landform](https://docs.os.uk/osngd/data-structure/land/land-features/landform), [Landform Line](https://docs.os.uk/osngd/data-structure/land/land-features/landform-line), [Landform Point](https://docs.os.uk/osngd/data-structure/land/land-features/landform-point) | | [OS NGD Land Use](https://docs.os.uk/osngd/data-structure/land-use) | [Land Use Features](https://docs.os.uk/osngd/data-structure/land-use/land-use-features) | [Site](https://docs.os.uk/osngd/data-structure/land-use/land-use-features/site), [Site Access Location](https://docs.os.uk/osngd/data-structure/land-use/land-use-features/site-access-location), [Site Routing Point](https://docs.os.uk/osngd/data-structure/land-use/land-use-features/site-routing-point) | | [OS NGD Structures](https://docs.os.uk/osngd/using-os-ngd-data/os-ngd-structures) | [Structure Features](https://docs.os.uk/osngd/data-structure/structures/structure-features) | [Compound Structure](https://docs.os.uk/osngd/data-structure/structures/structure-features/compound-structure), [Field Boundary](https://docs.os.uk/osngd/data-structure/structures/structure-features/field-boundary), [Structure](https://docs.os.uk/osngd/data-structure/structures/structure-features/structure), [Structure Line](https://docs.os.uk/osngd/data-structure/structures/structure-features/structure-line), [Structure Point](https://docs.os.uk/osngd/data-structure/structures/structure-features/structure-point) | | [OS NGD Transport](https://docs.os.uk/osngd/using-os-ngd-data/os-ngd-transport) | [Transport Features](https://docs.os.uk/osngd/data-structure/transport/transport-features) | [Cartographic Rail Detail](https://docs.os.uk/osngd/data-structure/transport/transport-features/cartographic-rail-detail), [Rail](https://docs.os.uk/osngd/data-structure/transport/transport-features/rail), [Road Line](https://docs.os.uk/osngd/data-structure/transport/transport-features/road-line), [Road Track or Path](https://docs.os.uk/osngd/data-structure/transport/transport-features/road-track-or-path), [Street Light](https://docs.os.uk/osngd/data-structure/transport/transport-features/street-light) | | | [Transport Network](https://docs.os.uk/osngd/data-structure/transport/transport-network) | [Bus Lane](https://docs.os.uk/osngd/data-structure/transport/transport-network/bus-lane), [Connecting Link](https://docs.os.uk/osngd/data-structure/transport/transport-network/connecting-link), [Connecting Node](https://docs.os.uk/osngd/data-structure/transport/transport-network/connecting-node), [Cycle Lane](https://docs.os.uk/osngd/data-structure/transport/transport-network/cycle-lane), [Ferry Link](https://docs.os.uk/osngd/data-structure/transport/transport-network/ferry-link), [Ferry Node](https://docs.os.uk/osngd/data-structure/transport/transport-network/ferry-node), [Ferry Terminal](https://docs.os.uk/osngd/data-structure/transport/transport-network/ferry-terminal), [Path](https://docs.os.uk/osngd/data-structure/transport/transport-network/path), [Path Link](https://docs.os.uk/osngd/data-structure/transport/transport-network/path-link), [Path Node](https://docs.os.uk/osngd/data-structure/transport/transport-network/path-node), [Railway Link](https://docs.os.uk/osngd/data-structure/transport/transport-network/railway-link), [Railway Link Set](https://docs.os.uk/osngd/data-structure/transport/transport-network/railway-link-set), [Railway Node](https://docs.os.uk/osngd/data-structure/transport/transport-network/railway-node), [Pavement Link](https://docs.os.uk/osngd/data-structure/transport/transport-network/pavement-link), [Road](https://docs.os.uk/osngd/data-structure/transport/transport-network/road), [Road Junction](https://docs.os.uk/osngd/data-structure/transport/transport-network/road-junction), [Road Link](https://docs.os.uk/osngd/data-structure/transport/transport-network/road-link), [Road Node](https://docs.os.uk/osngd/data-structure/transport/transport-network/road-node), [Street](https://docs.os.uk/osngd/data-structure/transport/transport-network/street), [Tram on Road](https://docs.os.uk/osngd/data-structure/transport/transport-network/tram-on-road) | | | [Routing and Asset Management Information (RAMI)](https://docs.os.uk/osngd/data-structure/transport/rami) | [Average and Indicative Speed](https://docs.os.uk/osngd/data-structure/transport/rami/average-and-indicative-speed), [Highway Dedication](https://docs.os.uk/osngd/data-structure/transport/rami/highway-dedication), [Maintenance Area](https://docs.os.uk/osngd/data-structure/transport/rami/maintenance-area), [Maintenance Line](https://docs.os.uk/osngd/data-structure/transport/rami/maintenance-line), [Maintenance Point](https://docs.os.uk/osngd/data-structure/transport/rami/maintenance-point), [Reinstatement Area](https://docs.os.uk/osngd/data-structure/transport/rami/reinstatement-area), [Reinstatement Line](https://docs.os.uk/osngd/data-structure/transport/rami/reinstatement-line), [Reinstatement Point](https://docs.os.uk/osngd/data-structure/transport/rami/reinstatement-point), [Restriction](https://docs.os.uk/osngd/data-structure/transport/rami/restriction), [Routing Hazard](https://docs.os.uk/osngd/data-structure/transport/rami/routing-hazard), [Routing Structure](https://docs.os.uk/osngd/data-structure/transport/rami/routing-structure), [Special Designation Area](https://docs.os.uk/osngd/data-structure/transport/rami/special-designation-area), [Special Designation Line](https://docs.os.uk/osngd/data-structure/transport/rami/special-designation-line), [Special Designation Point](https://docs.os.uk/osngd/data-structure/transport/rami/special-designation-point) | | [OS NGD Water](https://docs.os.uk/osngd/data-structure/water) | [Water Features](https://docs.os.uk/osngd/data-structure/water/water-features) | [Inter-tidal Line](https://docs.os.uk/osngd/data-structure/water/water-features/inter-tidal-line), [Tidal Boundary](https://docs.os.uk/osngd/data-structure/water/water-features/tidal-boundary), [Water](https://docs.os.uk/osngd/data-structure/water/water-features/water), [Water Point](https://docs.os.uk/osngd/data-structure/water/water-features/water-point) | | | [Water Network](https://docs.os.uk/osngd/data-structure/water/water-network) | [Water Link](https://docs.os.uk/osngd/data-structure/water/water-network/water-link), [Water Link Set](https://docs.os.uk/osngd/data-structure/water/water-network/water-link-set), [Water Node](https://docs.os.uk/osngd/data-structure/water/water-network/water-node) | | | | | {% hint style="info" %} ### Info Find out more about the hierarchy of OS NGD data from the\ [Terminology and access page on the OS NGD documentation site](https://docs.os.uk/osngd/getting-started/os-ngd-fundamentals/terminology-and-access). {% endhint %} {% hint style="info" %} ### Addressing information If you are interested in addressing information, [**OS Places API**](/os-apis/accessing-os-apis/os-places-api.md) **provides a detailed view of an address and its lifecycle**, giving you direct access to rich address data for geocoding, postcode searching, form-filling and much more. {% endhint %} --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.os.uk/os-apis/accessing-os-apis/os-ngd-api-features/what-data-is-available.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.