Plan your Building

Broadfield Stables

A small guide to help you plan

Rules governing outbuildings apply to sheds, greenhouses and garages as well as other ancillary garden buildings such as swimming pools, ponds, sauna cabins, kennels, enclosures (including tennis courts) and many other kinds of structure for a purpose incidental to the enjoyment of the dwelling house.


Outbuildings are considered to be permitted development, not needing planning permission, subject to the following limits and conditions:

  • No outbuilding on land forward of a wall forming the principal elevation.
  • Outbuildings and garages to be single storey with maximum eaves height of 2.5 metres and maximum height of four metres with a dual pitched roof or three metres for any other roof.
  • Maximum height of 2.5 metres in the case of a building, enclosure or container within two metres of a boundary of the curtilage of the dwellinghouse.
  • No verandas, balconies or raised platforms.
  • No more than half the area of land around the “original house”* would be covered by additions or other buildings.
  • In National Parks, the Broads, Areas of Outstanding Natural Beauty and World Heritage Sites the maximum area to be covered by buildings, enclosures, containers and pools more than 20 metres from house to be limited to 10 square metres.
  • On designated land* buildings, enclosures, containers and pools at the side of properties will require planning permission.
  • Within the curtilage of listed buildings any outbuilding will require planning permission.

*The term “original house” means the house as it was first built or as it stood on 1 July 1948 (if it was built before that date). Although you may not have built an extension to the house, a previous owner may have done so.

*Designated land includes national parks, Areas of Outstanding Natural Beauty, conservation areas and World Heritage Sites.

Please note: The permitted development allowances described here apply to houses, not to:

  • Flats and maisonettes (view our guidance on flats and maisonettes)
  • Converted houses or houses created through the permitted development rights to change use (as detailed in our change of use section)
  • Other buildings
  • Areas where there may be a planning condition, Article 4 Direction or other restriction that limits permitted development rights.

Permitted Development for householders – Technical Guidance

You are strongly advised to read a technical guidance document produced by the Government to help understand how permitted development rules might apply to your circumstances.

Building Regulations: General Information

Interactive Planning Portal

Hi Tim Just wanted to say how pleased I am with my carriage house.  The guys erecting it worked very hard and even worked well after dark and arrived early the next day to complete my project.  I am so grateful they worked so hard. Please pass my thanks to your all of your team.  

Carriage House – excellent service

Excellent Service. Pleasure to do business with a company with second to none customer service.

P. Hands, Huddersfield

Hi   Hope you all have a good Christmas and New Year.  I just wanted to say thank you very much my home office which I shall prepare as my sewing room over the festive holidays. You did a wonderful job and I'm so pleased with it and can't wait to use it.

A. Kerby – Port Issac, Devon

Hi Just to let you know we are all extremely pleased with our new garage.  We can't wait to start using it. Pleasure to do business with you.

Paul Coxton, Inverness

Our dogs couldn't be happier in their new kennel!  What excellent service you offer and the lads were so helpful on the day of installation. Super products!

Happy dogs!