Mummol,
I've looked a little bit further into this matter and I can offer only cold comfort.
Garages can be converted at a later stage to habitable use if it complies with the several requirements of the exempted development schedule.
There are further amendments to the acts and regulations but as far as I know the below exempted development schedule remains largely in force.
See
my bold and italics in the quoted regulation below.
Because the garage was permitted as what I understand to be part of the original primary permission, it may not need to avail of the exempted development schedule.
Therefore what ajay and I have posted about the whole drainage issue becomes very important if you want to try to maintain the quality of your existing water supply.
You should also insure they do not build a mezzanine or first floor within the garage to increase the anticipated incidence of overlooking of your property you describe above.
Such a mezzanine would represent a further increase in floor area but as it constitutes development within the envelope of the building, this might be a gray area in terms of planning law.
ONQ.
[broken link removed]
All advice on AAM is remote from the situation and cannot be relied upon as a defence or support - in and of itself - should legal action be taken.
Competent legal and building professionals should be asked to advise in Real Life with rights to inspect and issue reports on the matters at hand.
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http://www.irishstatutebook.ie/2001/en/si/0600.html
S.I. No. 600/2001 — Planning and Development Regulations, 2001
SCHEDULE 2
Part 1
Exempted Development — General
Development within the curtilage of a house
Column 1
Description of Development
CLASS 1
The extension of a house, by the construction or erection of an extension (including a conservatory) to the rear of the house
or by the conversion for use as part of the house of any garage, store, shed or other similar structure attached to the rear or to the side of the house.
Column 2
Conditions and Limitations
1. (a) Where the house has not been extended previously,
the floor area of any such extension shall not exceed 40 square metres.
(b) Subject to paragraph (a), where the house is terraced or semi-detached, the floor area of any extension above ground level shall not exceed 12 square metres.
(c) Subject to paragraph (a), where the house is detached, the floor area of any extension above ground level shall not exceed 20 square metres.
2. (a) Where the house has been extended previously, the floor area of any such extension, taken together with the floor area of any previous extension or extensions constructed or erected after 1 October 1964, including those for which planning permission has been obtained, shall not exceed 40 square metres.
(b) Subject to paragraph (a), where the house is terraced or semi-detached and has been extended previously, the floor area of any extension above ground level taken together with the floor area of any previous extension or extensions above ground level constructed or erected after 1 October 1964, including those for which planning permission has been obtained, shall not exceed 12 square metres.
(c) Subject to paragraph (a), where the house is detached and has been extended previously, the floor area of any extension above ground level, taken together with the floor area of any previous extension or extensions above ground level constructed or erected after 1 October 1964, including those for which planning permission has been obtained, shall not exceed 20 square metres.
3. Any above ground floor extension shall be a distance of not less than 2 metres from any party boundary.
4. (a) Where the rear wall of the house does not include a gable, the height of the walls of any such extension shall not exceed the height of the rear wall of the house.
(b) Where the rear wall of the house includes a gable, the height of the walls of any such extension shall not exceed the height of the side walls of the house.
(c) The height of the highest part of the roof of any such extension shall not exceed, in the case of a flat roofed extension, the height of the eaves or parapet, as may be appropriate, or, in any other case, shall not exceed the height of the highest part of the roof of the dwelling.
5. The construction or erection of any such extension to the rear of the house shall not reduce the area of private open space, reserved exclusively for the use of the occupants of the house, to the rear of the house to less than 25 square metres.
6. (a) Any window proposed at ground level in any such extension shall not be less than 1 metre from the boundary it faces.
(b) Any window proposed above ground level in any such extension shall not be less than 11 metres from the boundary it faces.
(c) Where the house is detached and the floor area of the extension above ground level exceeds 12 square metres, any window proposed at above ground level shall not be less than 11 metres from the boundary it faces.
7. The roof of any extension shall not be used as a balcony or roof garden.