Toyota luxury brand Lexus Australia has announced plans to grow its current 22-strong dealer network by more than 50% by 2012.

Dealers will commit A$230m towards new and existing dealer facilities and sites over the next four years. New outlets will be in a mix of regional and metropolitan centres.

The expansion plans include substantial redevelopment of existing facilities, bringing them in-line with Lexus' new global corporate identity and facility standards.

The first of these new-look sites, Lexus of Perth, opened in March and is the standard-setter for future dealership designs and existing dealership upgrades.

Lexus chief executive John Roca said that the commitment had been made possible by the continued growth of the brand in Australia over the last seven years.

"Lexus locally is in growth mode," he said. "Demand for our vehicles regularly outstrips supply and our dealerships in their current format are reaching their capacity limits."