Cork Airport is owned by the DAA.
IAA has
ZERO responsibility for parking of A/C
They merely relay stand 's allocated by the airport operator.
http://www.iaa.ie/safe_reg/iaip/Publ...CK_24-2_en.pdf
From the AIP which gives the largest A/C which can use a given stand.
Stand design/layout and allocation will be influenced by what services will be needed and safety is paramount.
ICAO Annex 14 and all its subsidiary Doc's will lay down dimensions to be followed.
but it's one stand one aircraft in Cork and I'm told the IAA insist on this
The airport operator will allocate stands based what services are to be provided and what other traffic is expected.