Re: Re: 25sqm: Internal or External Measurement for Exempted Development?? Home › Forums › Ireland › 25sqm: Internal or External Measurement for Exempted Development?? › Re: Re: 25sqm: Internal or External Measurement for Exempted Development?? April 13, 2006 at 2:09 am #776434 ArchieParticipant Have a look here Go to appendix 4 on page 40/41. The old tax man will let you away with nothing so this another piece of ammo in your defence Latest News