# Set a Building Class

Within a Space, an individual Building Class can be applied to be assumed in any Zone in which the Space is applied. A Building Class is typically stipulated by a Building Code and provides a set of assumptions within the model for Schedules and minimum energy efficiency or thermal performance requirements.

## Add a New Building Class

To update a building class, we need to an additional space. The 'Default' space always inherits the building class of the Project. Click the '+' arrow in the left-hand panel. Select a template from the list. In this case, select 'Class 9B - School' and click 'Select'.

<figure><img src="/files/APPHaQ6Tqna2nGX7HkrB" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/Qtlh4JDJKEPIto5ZNAog" alt=""><figcaption></figcaption></figure>

To create a new tag, open the 'Tag' drop-down and select 'Create Tag'. Enter a 'Title', 'Symbol' and 'Colour' as required. Click 'Select' to return to the Spaces area. The new space type 'School' will now be displayed.

<figure><img src="/files/uNQbKmxgC5XWOTh4m1tY" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/0fmuFcLS8JO6dC5Kufuw" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/S2E6fbtZJ2KWU1dZ7TUx" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/j7hUka94d4cLohtgfS6P" alt=""><figcaption></figcaption></figure>

The 'Context' can be updated to any building class at this stage. You can switch between classes as needed. Ensure that the correct zone is tagged with this space type for it to function and connect properly to the HVAC system.


---

# 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.betterbuilding.io/user-guide/2d-building/building/spaces/set-a-building-class.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.