Do I need planning permission for my Garden Room?

Do need planning permission for my Garden Room?

In this blog we’ll explore the question, do I need planning permission for my garden room? It’s important to note that in some cases garden rooms can be constructed without any planning permission under Permitted Development (PD) rights, providing they do not include sleeping accommodation. However there are a number of exclusions that apply, so it’s important to digest all the facts before deciding the answer for your garden room project.  Read on to find out more.

Woman writing before laptop while granny playing with kid planning permission

Whilst the above rules apply it is important to note that some areas in the UK have limited Permitted Development rights.  As such these areas require full planning permission for any residential garden room construction, with or without sleeping accommodation.

Another key point to consider is that Permitted Development rights only apply to houses, and not to flats, maisonettes, or commercial properties.

Examples of areas that have limited Permitted Development (PD) rights include:

  • National Parks
  • Conservation Areas
  • The grounds of a Listed Building
  • Areas of Outstanding Natural Beauty (AONBs)

There are several further key factors to consider when assessing whether you need to apply for planning:

Factors to consider

  1. Do you live in a designated area?
  2. How high will your garden room be?
  3. How big will the garden room be compared to the size of your garden?
  4. What will the garden room be used for?


So, if your garden room is self-contained, intended for everyday living, and contains sleeping accommodation, you must apply for planning permission. However, in the case of constructing a garden room, garage, shed, or summer house for incidental use, you will not require planning permission.

Besides this information, you may refer to our Ancillary vs Incidental blog for more information on incidental and ancillary uses. Also, for more information on PD Rights, click here.

How NAPC can help if planning permission is needed

Moreover, we can answer any question you have about planning law. Therefore, our friendly team of professional planners are on hand to take your call, and we can provide you with prompt and accurate advice. Thereupon we will help to ensure your development project stays within UK planning laws.

Further reading

Subsequently, to find out more about other planning permission-related topics, here is a selection of blogs we have written:

Ancillary vs Incidental

What is curtilage?



Get an answer quicker with a Feasibility Study

A one-off Feasibility Study (from £99) will equip you with crucial planning insight about the area you’re planning to site your Annexe or Garden Room. So if you pursue your application, you have the best chance of success. 

Prefer to talk to a planning expert in person?

Book a call with one of our planning experts or call/email us directly.

Phone number

01285 283200



Annexes are now a popular addition to many family homes to provide additional accommodation.

Mobile Home

NAPC provide a service to help you establish whether your mobile home meets the definition of a caravan and can apply for a Certificate of Lawfulness

Garden Room

Looking to install a garden room at your property? Unsure about planning permission or building regulations for garden rooms?

Planning Info For...
Planning Services

Talk to a planning expert

By completing the form below, or you can call us direct: