Eamon Ryan has been slammed for "effectively bulldozing" the Cathal Brugha Barracks with a tweet to make way for a massive housing development.
The biggest military base in the city faces the possibility of being to be bulldozed to make way for 1,000 social and affordable homes.
The barracks, which will be 100 years old this year, houses about 1,000 army personnel and is owned by the Department of Defence.