Baseline FSI restrictions and Corruption are Killing Housing Affordability
India's urban housing crisis is being quietly engineered by artificially low Floor Space Index (FSI) limits imposed by municipal corporations and state governments across major cities. Mumbai, one of the world's most densely populated and economically productive cities, maintained a baseline FSI of just 1.33 for decades — among the lowest globally, while Tokyo and Hong Kong allow 10–15. This artificial cap on how much can be built on any plot creates a government-manufactured scarcity of floor space, driving property prices to 14x annual household income in Mumbai. Worse, the system is designed to be gamed: rather than a clean uniform FSI, governments grant exceptions through a Byzantine TDR and premium FSI market that only politically connected large developers can navigate, turning a public planning tool into a private rent-extraction mechanism. The result is a brutal squeeze on the middle class — apartments have shrunk 27–45% in size over the past decade while prices per square foot have risen over 50%, meaning families are paying more, borrowing more, and getting significantly less liveable space. For instance, the Maharashtra state government has the legal authority under the MRTP Act to raise baseline FSI tomorrow, but faces a powerful coalition of interests — established builders, municipal revenue dependencies, and litigious citizens' groups — all of whom profit from or are habituated to scarcity.