# What happened to Class D1 planning use?

Canonical source: https://rivermarkproperty.com/guides/planning-use-classes/class-d1/

The former Class D1 was split between newer use classes in England in 2020; its uses did not all move into one class.

## The detail.

For example, many clinics and day nurseries now fall within Class E, while schools, libraries and places of worship are among uses in Class F1. The actual operation and planning history matter.

This guidance applies to England. The lawful use, conditions, any proposed works and the facts of the operation should be checked for each property.

## What to check.

-   Identify the specific former and proposed activities.
-   Review the original permission and conditions with the local planning authority or an adviser.

A planning adviser or the local planning authority can advise on the specific property and proposal.

## Sources.

-   [Planning Portal: use classes in England](https://www.planningportal.co.uk/permission/common-projects/change-of-use/use-classes/)
-   [GOV.UK: when is permission required?](https://www.gov.uk/guidance/when-is-permission-required)
-   [2020 use-class changes: legislation](https://www.legislation.gov.uk/uksi/2020/757/made)

Sources reviewed 6 November 2026. General information, not a planning opinion.

## Related questions.

-   [What planning use class is a medical clinic?](https://rivermarkproperty.com/guides/planning-use-classes/medical-clinic/)
-   [What planning use class is a day nursery?](https://rivermarkproperty.com/guides/planning-use-classes/nursery/)
-   [What is Class E planning use?](https://rivermarkproperty.com/guides/planning-use-classes/class-e/)
-   [What are Class F planning uses?](https://rivermarkproperty.com/guides/planning-use-classes/class-f/)

[See all planning use class guides](https://rivermarkproperty.com/guides/planning-use-classes/)

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