James Packer's Crown Resorts is seeking a legal order to stop property developer Iwan Sunito from trading under the name Crown Group Holdings, claiming the apartment developer is cashing in on the $10 billion casino operator's brand.

In a court case that is sure to provide some moments of confusion, Mr Packer's Crown Resorts has claimed that Mr Sunito's Crown Group and its subsidiaries have breached a number of its trademarks including its logos and suite of brand names.

James Packer's Crown Resorts has claimed that Mr Sunito's Crown Group and its subsidiaries have breached a number of its trademarks including its logos and suite of brand names. Credit:Reuters

Documents filed in the Federal Court of Australia by Crown Resorts allege that the property developer is misleading consumers by making them think its luxury apartments are associated with the casino company and its hospitality brand.

It might seem like a straightforward intellectual property stoush at first glance, but it is set to be a battle for the Sydney skyline in which only one Crown will get to be king. The case has ramifications for billions of dollars worth of projects by both companies.