Billionaire developer Harry Triguboff's company has launched legal action against Premier Gladys Berejiklian in an attempt to win approval to build a divisive residential tower in north-west Sydney.

Developer Meriton wants to build a 42-storey apartment block at Macquarie Park, in the heart of an electorate in which the Labor and Liberal candidates are fiercely accusing the other of stoking over-development.

The original plan from Meriton that included a 63-storey tower was rejected by Ryde Council. The latest plans are for a 42-storey tower. Credit:Ryde Council

The tower, which became a lightning rod for political concerns about development in Sydney, was rejected by the City of Ryde last year, but could still proceed if approved by the NSW government.

Ryde Liberal MP Victor Dominello last year asked Ms Berejiklian to commission an "assurance review" by the Greater Sydney Commission [GSC] into development and planning in his electorate.