A-League dominators Brisbane Roar delivered a performance befitting their return to Suncorp Stadium and premiership celebrations by routing Gold Coast United on Saturday night.

The Roar put the icing on the premiership cake in style, outclassing their arch-rivals 4-0 before lifting the Premiers Plate in front of an adoring home crowd of 20,831 - the club's biggest of the season.

It was a display to worry the other A-League finalists as fourth-placed United had no answers in their first derby defeat.

Brisbane, who finished second last in 2009-10, ended the regular season with a 25-match unbeaten streak, including 16 matches at their home fortress where they will be extremely tough to beat in the play-offs.

Their only loss occurred in week six against Melbourne Victory.