On designated land*, outbuildings to the side of the house are not permitted development.

Outbuildings* are not permitted development within the grounds of a listed building.

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Definitions of terms used

• Outbuilding - The 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.
• Incidental to the enjoyment of the dwellinghouse - also includes the keeping of poultry, bees, pet animals, birds or other livestock for the domestic needs or personal enjoyment of the occupants of the house, or a container used for domestic heating oil or petroleum gas. It does not cover any professional use or use as separate self-contained living accommodation.
• Designated land - Designated land (Article 2(3)) includes national parks and the Broads, Areas of Outstanding Natural Beauty, conservation areas and World Heritage Sites.

In national parks, the Broads, Areas of Outstanding Natural Beauty and World Heritage Sites the total area to be covered by any outbuildings more than 20 metres from ANY wall of the house must not exceed 10 square metres to be permitted development.

Outbuildings* are not permitted development forward of the principal elevation of the original house*.

Outbuildings and other additions must not exceed 50% of the total area of land around the original house*. Sheds and all other outbuildings (see intro), decking and raised platforms, and extensions to the original house must be included when calculating this 50% limit.

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Definitions of terms used

• Outbuilding - The 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.
• Incidental to the enjoyment of the dwellinghouse - also includes the keeping of poultry, bees, pet animals, birds or other livestock for the domestic needs or personal enjoyment of the occupants of the house, or a container used for domestic heating oil or petroleum gas. It does not cover any professional use or use as separate self-contained living accommodation.
• Original house - 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 - Designated land (Article 2(3)) includes national parks and the Broads, Areas of Outstanding Natural Beauty, conservation areas and World Heritage Sites.

To be permitted development, any new building must not itself be separate, self-contained, living accommodation and must not have a microwave antenna.

Outbuildings* must be single storey with a maximum eaves height of 2.5 metres and maximum overall height of 4 metres with a dual pitched roof, or three metres in any other case.

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Definitions of terms used

• Outbuilding - The 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.
• Incidental to the enjoyment of the dwellinghouse - also includes the keeping of poultry, bees, pet animals, birds or other livestock for the domestic needs or personal enjoyment of the occupants of the house, or a container used for domestic heating oil or petroleum gas. It does not cover any professional use or use as separate self-contained living accommodation.

If the outbuilding is within two metres of the property boundary the whole building should not exceed 2.5 metres in height.

Balconies and verandas are not permitted development. Raised platforms such as decking are permitted development, provided they are no higher than 300mm.

Containers, such as those used for domestic heating purposes, must not exceed 3,500 litres capacity to be permitted development.

The other permitted development conditions which apply to outbuildings* explained in this guide also apply to containers.

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Definitions of terms used

• Outbuilding - The 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.
• Incidental to the enjoyment of the dwellinghouse - also includes the keeping of poultry, bees, pet animals, birds or other livestock for the domestic needs or personal enjoyment of the occupants of the house, or a container used for domestic heating oil or petroleum gas. It does not cover any professional use or use as separate self-contained living accommodation.

Outbuildings may be exempt from building regulations depending on their size, use and location. Read further guidance on Planning Portal.

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Installation, alteration or replacement of a chimney, flue or soil and vent pipe

The installation of a fuel tank should meet the necessary building regulations requirements. Find out more on Planning Portal.