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.

Five Hospitalised After Arson Attack In Finglas
Gardaí Warn Drivers After 150 Caught Drink or Drug Driving Over Christmas Period
An Garda Síochána Release Image of Getaway Car Found Burnt Out In Naas Used In Fatal Offaly House Fire
Pedestrian Dies After Collision On R445 Monasterevin Road Outside Kildare Town
Fine Gael TD Calls For Restricted Bin Collection Times To Ease Traffic Delays
Gardaí Continue Their Road Traffic Enforcement Operation Throughout The Christmas Period
New Quality Mark To Be Introduced To Crack Down On Bogus English Language Schools
Concerns Rise As Organ Transplant Operations Decline