# basementpresencesourcevalue

This code list is used in association with the Basement Presence Source metadata attribute which is present within the Building Feature Type. The code list describes the data supplier organisation names represented in the data.

| Label             | Definition                                                     |
| ----------------- | -------------------------------------------------------------- |
| Address Authority | The basement presence was sourced from address authority data. |
| Ordnance Survey   | The basement presence was sourced from Ordnance Survey data.   |
| Verisk            | The basement presence was sourced from Verisk data.            |


---

# Agent Instructions: 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/osngd/code-lists/code-lists-overview/basementpresencesourcevalue.md?ask=<question>
```

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.