The Sydney Opera House will feature a Tibetan red-color scheme in its proposed $600 million makeover, adding to an array of other little-known Chinese architecture elements already used in the iconic structure.

The interior renovation plans, which were revealed in Australia recently, will include original design concepts architect Jorn Utzon had planned more than 50 years ago before he famously walked out midway through the project.

Utzon died last November, aged 90, and at a special memorial service in Sydney for the Danish architect last month, an image of his Chinese "festive red" interior design for the opera theater was unveiled.