Question 1

What is Class Q Permitted Development?

Accepted Answer

Class Q permitted development rights allow for the conversion of certain agricultural buildings into dwellings without the need to obtain full planning permission. These rights are outlined in the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended).

Question 2

Which Buildings Can Be Converted Under Class Q?

Accepted Answer

Class Q applies to certain types of agricultural buildings, including:
 • Barns
 • Agricultural storage buildings
 • Agricultural buildings used for keeping livestock

Question 3

What are the Key Conditions for Class Q Permitted Development?

Accepted Answer

Key conditions include:
 • The building must have been in agricultural use on or before 20th March 2013.
 • The gross floor space of the building to be converted must not exceed 465      square meters.
 • The converted dwelling must be used for residential purposes only and not for      any other commercial use.

Question 4

How Many Dwellings Can Be Created Under Class Q?

Accepted Answer

Class Q allows for the creation of up to 3 dwellings within an agricultural unit, subject to meeting the necessary criteria and conditions.

Question 5

Do I Need Prior Approval for Class Q Permitted Development?

Accepted Answer

Yes, you need to apply for "prior approval" from the local planning authority before proceeding with the conversion under Class Q. This ensures that certain considerations, such as transport and highways impacts, contamination risks, and flooding risks, are taken into account.

Question 6

What is the Process for Applying for Prior Approval?

Accepted Answer

The process involves submitting a prior approval application to the local planning authority. This application includes information such as proposed plans, the location of the building, and any other relevant details specified by the authority.

Question 7

Can Class Q Permitted Development Be Refused?

Accepted Answer

Yes, local planning authorities can refuse prior approval if they determine that the proposed conversion would have significant adverse impacts on local highways, transport, noise, contamination, flood risk, or if it would harm the character or appearance of the area.

Question 8

Can I Appeal a Refusal of Prior Approval?

Accepted Answer

Yes, if prior approval is refused, you have the right to appeal to the Planning Inspectorate within a specified timeframe.

Question 9

Are There Any Design Constraints for Class Q Conversions?

Accepted Answer

While Class Q allows for the conversion of agricultural buildings, the design and external appearance must comply with certain constraints to ensure that the building's character and appearance are preserved, and that it integrates well with its surroundings.

Question 10

Can Class Q Permitted Development Be Used for Commercial Purposes?

Accepted Answer

No, the converted dwellings must be used solely for residential purposes. Any commercial use, including holiday lets or business premises, is not permitted under Class Q.

Question 11

How Long Does Prior Approval Take?

Accepted Answer

The timeframe for obtaining prior approval can vary depending on the complexity of the proposal and the workload of the local planning authority. It typically ranges from a few weeks to a few months.

Question 12

Can Class Q Permitted Development Be Combined with Other Permitted Development Rights?

Accepted Answer

Yes, developers can combine Class Q permitted development with other permitted development rights, such as those for changes of use or extensions, provided all conditions and limitations are met.

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