In one of the most rapidly urbanizing regions in the world, how has the superblock shaped the urban landscape of the PRD? With its unique history of large-scale urban development, especially during the past three decades, the PRD provides an abundant source of superblock projects for research and analysis. Hong Kong, with its influences rooted in a colonial past and with Great Britain, provided early models of superblock development that were easily adapted in the emerging cities of Shenzhen and Dongguan, and for new growth of historical cities like Guangzhou.