how big extension without planning permission?

[pernickety]

hi, been searching google and finding far too much information so I'd like to try you guys for a quick answer..... if I may.....

for a private residence, looking to extend at the back single storey, not overlooking anyone etc., can anyone tell me what m2 (or feet if you must) you can build without planning permission?
thanks,

 

[runner]

You will find several threads covering this on this site. Just search here and you will have joy.

 

[dodo]

40Sq metres as long as you leave a garden of at least 20sqm in south Dublin

 

[bacchus]

See here

 

[pernickety]

thanks guys!