What Drives Urban Densification? Free Market versus Government Planning in Iran.

This article examines whether the compact city model is more likely to emerge through market-driven development ("invisible hand") or government intervention ("iron fist") by analyzing urban growth in Shiraz, a medium-sized city in south-central Iran, over thirty years (mid-1980s to mid-2010s). Findings indicate that since the mid-2000s, market forces have overtaken government planning, with the state reducing land provision for housing and private developers, including powerful religious trusts (Bonyads), driving a shift from low-density villas to mid- and high-rise apartment towers. Despite local plans promoting densification in specific nodes and southern zones, actual development concentrated in the northwestern area favored by market actors, resulting in a denser and more compact city shaped primarily by market preferences rather than official planning. The study concludes that in Shiraz's context, market-led development has produced greater urban compactness, though it emphasizes the need to balance density with quality housing, infrastructure, and access to open spaces.