A house at Davin Gardens, Caherdavin, Limerick, was extensively damaged in the blaze last Monday night.
Three units of Limerick City and County Fire and Rescue Service were deployed to the fire at 9.11pm and quenched the fire.
Sources said the fire was “well alight” when firefighters arrived.
Gardai determined the house a crime scene and arrested a man shortly afterwards near the scene.
A Garda spokesman said: “Gardaí arrested a man, aged in his 20s, in relation to a fire at a house in Davin Gardens, Caherdavin on January 18 at 9pm.”
“He is currently detained at Henry Street Garda Station under Section 4 of the Criminal Justice Act, 1984.”
There were no reports of injuries.
A Garda spokesman confirmed the suspect was due to appear before the District Court in Limerick this morning charged in connection with the fire.
