25m^2 Shed Planning Exemption - what is included?

Conor20

The regulations are pretty clear around the construction of a shed, that it should be under 25m^2 in area. My question is: Is this (1) the internal floor space of the structure OR (2) the external area of the walls as measured from the outside OR (3) the measurement of all extrememities of the structure - that is to say, if there is a lip on the roof over the edge of the walls of say, .2m, is that included in the area of the footprint?

http://www.citizensinformation.ie/en/housing/planning_permission/planning_perm_altering_a_house.html :

Building a garage at the back or side of a house so long as it does not extend out in front of the building line of the house and does not exceed four metres in height (if it has a tiled/slated pitched roof) or three metres (if it has any other roof type). This building will be exempt from planning permission once the floor area is limited to 25 square metres. Garages or sheds to the side of the house must match the finish of the house and may not be lived in, used for commercial purposes or for keeping pigs, poultry, pigeons, ponies or horses.

The full Irish Statue Book is here, and the relevant section states:

2. The total area of such structures constructed, erected or placed within the curtilage of a house shall not, taken together with any other such structures previously constructed, erected or placed within the said curtilage, exceed 25 square metres.

This is essentially to clarify whether an overhang of the roof counts towards the area of the structure, or indeed a decking coming out from the bottom of the structure, or is it the footprint of the walls themselves which is counted?

Conor.

BryanF

Conor20 wrote: »

the internal floor space of the structure

yes. thats it

This is essentially to clarify whether an overhang of the roof counts towards the area of the structure, or indeed a decking coming out from the bottom of the structure, or is it the footprint of the walls themselves which is counted?

Conor.

for 'free area remaining' you would measure that perimeter area at ground level outside the dwelling/shed walls. overhangs don't come into it (unless overhanging neighbours property, but thats a different mater)

Conor20

Thanks for the reply Brian. Through, I have to say, I find it counter intuitive that it would be the internal floor space. That leaves one free to build 5m thick walls if they want and actually occupy 225 m^2 on the ground so long as the minimum distances from dwellings restrictions are observed?

BryanF wrote: »

for 'free area remaining you would that the perimeter at ground level outside the dwelling/shed walls. overhangs don't come into it

Sorry - I don't get what you mean here. Did you mean by this that the area considered for the 25m^2 includes the decking in front of the shed, but not the overhang (e.g. the lip on the roof)?

BryanF

Conor20 wrote: »

I don't get what you mean here. Did you mean by this that the area considered for the 25m^2 includes the decking in front of the shed, but not the overhang (e.g. the lip on the roof)?

no. internal floor area is just that: internal floor area. case closed

there is then the mater of compliance with highlighted text below. please read my earlier amended comment in that context

.

1. No such structure shall be constructed, erected or placed forward of the front wall of a house.
2. The total area of such structures constructed, erected or placed within the curtilage of a house shall not, taken together with any other such structures previously constructed, erected or placed within the said curtilage, exceed 25 square metres.
3. The construction, erection or placing within the curtilage of a house of any such structure shall not reduce the amount of private open space reserved exclusively for the use of the occupants of the house to the rear or to the side of the house to less than 25 square metres.
4. The external finishes of any garage or other structure constructed, erected or placed to the side of a house, and the roof covering where any such structure has a tiled or slated roof, shall conform with those of the house.
5. The height of any such structure shall not exceed, in the case of a building with a tiled or slated pitched roof, 4 metres or, in any other case, 3 metres.
6. The structure shall not be used for human habitation or for the keeping of pigs, poultry, pigeons, ponies or horses, or for any other purpose other than a purpose incidental to the enjoyment of the house as such.

http://www.irishstatutebook.ie/2001/en/si/0600.html#part2

Conor20

Thanks again Bryan. That conclusively answers my questions - that decking and roof overhang are not included provided they do not impact on any of the other regulations with regard to minimum set backs and remaining open space in the garden. Very useful to have this confirmed while planning the shed.

Conor.

BryanF

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Conor20 wrote: »

decking and roof overhang are not included

in msq calc for shed