The houses are suspected of being used by criminal gangs.
A number of homes in Finglas, that were being used by west Dublin crime gangs, have been boarded up by the city council.
The local authority has taken back control of the properties after nine addresses in the area were raided, involving five units of the Gardaí yesterday.
Two guns, 300 rounds of ammunition and €47,000 in cash was seized.
The two firearms seized include one sub-machine gun.
After a number of serious incidents related to ongoing criminal activity in the Finglas area in recent weeks - Gardaí carried out the nine searches yesterday.
Dublin city council has taken possession of and boarded up a number of the properties.
An incident room has been set up at Finglas Garda Station and Gardaí say they'll continue to maintain high visibility and community patrols in the area.
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