> For the complete documentation index, see [llms.txt](https://docs.os.uk/os-downloads/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-downloads/products/maps-and-imagery-portfolio/os-vectormap-district/vector-simple-guide/downloading-os-opendata.md).

# Downloading OS OpenData

* Firstly OS VectorMap District (Vector) format needs to be downloaded from the OS Data Hub

{% embed url="<https://osdatahub.os.uk/data/downloads/open>" %}

* Scroll to OS VectorMap District, ensure that the data type is Vector. Select grid reference square using the two letter reference list. Southampton lies in the **SU** grid reference square, so **SU** has been selected from the reference list.

<figure><img src="/files/CxK0qBu14170Kqq6hb0o" alt="OS VectorMap District screenshot showing ESRI Shapefile supply product and SU national grid reference selected"><figcaption><p>OS VectorMap District in ESRI Shapefile supply format</p></figcaption></figure>

Here is a larger image of the National Grid Reference squares:

<figure><img src="/files/RQFSi6xefmzYiKq2yVu2" alt="Image of Great Britain National Grid Reference squares" width="336"><figcaption><p>National Grid Reference squares covering Great Britain</p></figcaption></figure>

* Tick the box for Download (as seen in download page image). Scroll down to the bottom of the page and click **Next**.
* Fill in the details required and you will receive an email with a link to download the data as a .zip file. Save to a designated folder. Once the download is complete, extract the file.

Now you should have a data folder with the all the components as SHX, SHP, PRJ and DRB files.

* As the download doesn’t come with Styled Layer Descriptors (SLDs), these need to be downloaded from the Ordnance Survey GitHub: [**https://github.com/OrdnanceSurvey/OS-VectorMap-District-stylesheets**](https://github.com/OrdnanceSurvey/OS-VectorMap-District-stylesheets)

On the webpage click **‘Download ZIP’**.

* Save the file. Once downloaded, extract the file and this will create a folder which contains both ESRI Shapefile stylesheets and GML stylesheets. Later we will be using the ESRI Shapefile stylesheets.


---

# 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, and the optional `goal` query parameter:

```
GET https://docs.os.uk/os-downloads/products/maps-and-imagery-portfolio/os-vectormap-district/vector-simple-guide/downloading-os-opendata.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

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.
