The fire broke out at the waste centre at Sarsfield’s Court industrial park in Upper Glanmire, which is operated by Greenstar.
There were no injuries and no immediate threat to neighbouring structures. However, a number of industrial buildings appeared to have been gutted.
The incident was reported at about 8.45pm and eight units of the fire brigade from city and county attended the scene and were last night battling to bring the blaze under control.
The facility contained mostly domestic waste. The workers of Greenstar and adjoining facilities were warned of a risk to their property, as a number of cars remained parked nearby.
The cause of the blaze was unknown last night and it is understood gardaí are investigating, but are not treating it as suspicious.
Senator John Gilroy, who lives locally, was at the scene. As a former psychiatric nurse at St Stephen’s Hospital, Sarsfield’s Court, which is less than 1km away, he was worried the smoke might interfere with patients.
However, Mr Gilroy said that, because of the lack of wind the smoke fortunately was going straight up in the air and not blowing towards the hospital.