The 40-year-old CWA House in Hay Street, West Perth, has been bought by Belmont-based construction company Diploma Group Ltd, which has a 30-apartment luxury residential development for the site in its float plans.

The 40-year-old CWA House in Hay Street, West Perth, has been bought by Belmont-based construction company Diploma Group Ltd, which has a 30-apartment luxury residential development for the site in its float plans.