quote:

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6m x 5m = 30m2 does not require planning permission. Anything over this will

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quote:

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Originally posted by bi22le
This is very topical as we may be building a workshop this year at the end of our garden. Something like a 30ftw x 15ftd, so a monster.

I like the idea of a log built, a nice 44mm one.

The concern I have though is that it will be a garage and need planning as I want to build close to the boundary.

Due to this i will probably go for air brick and cladding to make it look neat.

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code:
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 overall 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 

code:
If you want to put up small detached buildings such as a garden shed or summerhouse in your garden, building regulations will not normally apply
if the floor area of the building is less than 15m2 and contains NO sleeping accommodation.  

 

If the floor area of the building is between 15m2 and 30m2, you will not normally be required to apply for building regulations approval providing
that the building contains NO sleeping accommodation and is either at least one metre from any boundary or it is constructed of substantially
non-combustible materials.