My Department publishes a wide range of housing and planning statistics on our website and the total number of local authority units occupied can be found at the following link, under the area titled ‘LA rented units by area 2003+’ within the Social Housing Supports contents: http://www.environ.ie/en/Publications/StatisticsandRegularPublications/HousingStatistics/FileDownLoad,15291,en.xls .
However, this information does not cover households currently renting directly from an Approved Housing Body or Housing Association in particular parts of the Dublin City area as that data is not available in my Department.
General statistics on local authority housing stock, including units that may be empty, are published annually by the Local Government Management Agency. The most recent statistics are in respect of 2013 and are available at the following link: http://www.lgma.ie/en/service-indicators-local-authorities-2013 . As part of a planned programme supported by my Department in 2014, Dublin City Council returned 467 vacant social housing units back to productive use and will be continuing to address this into 2015, through funding made available under Budget 2015.