Robert Zielinski of Riverwalk, Oakpark is charged with three offences under the Misuse of Drugs Act.
The gardaí had objected to bail.
Sgt Miriam Mulhall Nolan told Tralee District Court gardaí were objecting to bail because of the ‘very sophisticated operation’ that was professionally run.
Gardaí raided the house in Oakpark on June 30 last and found 21 fully mature cannabis plants.
The sergeant said the upstairs of the house had been specially converted.
The value of the plants is estimated to be in the region of €21,000, the court heard.
The 30-year-old is accused of cultivating cannabis without a licence, possession of the drug for sale or supply, and possession of cannabis.
The State objected to an application for bail by Mr Zielinski’s solicitor, Patrick Mann.
Garda Stephen O’Brien said the accused was the sole occupier of the house and had been caught ‘red-handed’.
Very sophisticated growing equipment, valued at €5,000 was also recoved.
The court heard it was believed Mr Zielinski was part of a ‘foreign national based drug dealing gang’.
Judge James O’Connor declined jurisdiction and refused bail.
He remanded Mr Zielinski in custody to July 20th for preparation of the book of evidence.
He said he would look at bail again on that date.