Re: Re: 25sqm: Internal or External Measurement for Exempted Development??

I did find this:

‘‘floor area’’ in relation to a building means the bounded by the inner finished surfaces of the enclosingwalls, or, on any side where there is no enclosing wall, the outermost edge of the floor on that side and in calculating the area of a building or part of a building there shall included in such area the space occupied by any walls, shafts, ducts or structure within the area being measured;

“http://www.environ.ie/DOEI/DOEIPol.nsf/0/35d32b901ee51d3d80256f0f003bc83e/$FILE/Buildingregs.pdf

Any thoughts?