Grangegorman Development Agency is an agency of the Government of Ireland charged with redevelopment of the Grangegorman Campus, formerly within the curtilage of St. Brendan's Hospital. Grangegorman (Irish: Gráinseach Ghormáin) itself is an inner city area on the Northside of Dublin, Ireland.Grangegorman, at 29 hectares, is the largest undeveloped site in the City of Dublin.