Magnificently transformed by the late Kerry Hill - the Perth-born architect with an international pedigree – COMO The Treasury has breathed new life into a clutch of historic state buildings in the very heart of Perth. These at one time housed the Lands and Titles offices, the Treasury and the General Post Office - now beautifully converted into a contemporary and luxurious retreat. Original dormer windows flood the rooms with light, which, together with a neutral colour palette and custom blonde wood furnishings, create a feeling of serenity.