In the heart of Sydney's central business district, Noah Verin rides through the streets to a dark corner of an underground car park that houses his farm, Urban Green.

THE LIMITED supply of land and strong demand for luxury condominium units have pushed the sale prices of new projects in the central business district to over Bt200,000 per square metre, according to Aliwassa Pathnadabutr, managing director of property agency CBRE (Thailand) Co Ltd.