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In a recent regulatory shift, the government of Tamil Nadu eased parking space norms for large residential properties. Homes on plots measuring 3,200 sq ft or more will now require space for four cars and four two-wheelers, compared with stricter provisions under the earlier rule. While developers have welcomed the move for allowing greater usable space, planners have expressed concern about its possible effect on street parking and congestion.
The Tamil Nadu government has amended the Combined Development and Building Rules, 2019, reducing the mandatory parking provisions for new large residential homes. As per the revised regulations, homes built on plots of 3,200 sq ft (around 300 sqm) or more must now provide parking space for a minimum of four cars and four two-wheelers, easing the earlier, more stringent requirement. Advertisement
This updated norm will apply to all residential developments approved by municipal corporations, municipalities, and town panchayats across the state. For smaller plots, the earlier standard remains unchanged, requiring parking space for two cars and two two-wheelers.
Representatives of the Builders Association of India mentioned that this revision effectively expands the usable Floor Space Index (FSI) for builders, as earlier parking areas, staircases, and service spaces were counted as non-FSI zones. Under the previous rule, developers had to allocate one car parking slot for every 75 sqm of built-up area, meaning a 5,000 sq ft home would have required five car parking slots. Builders have often stated that such requirements constrained living space, as vehicle movement zones occupied significant portions of the plot.
However, some urban planners have voiced concerns that the relaxation might worsen on-street parking conditions. They noted that many homeowners already use public roads for parking excess vehicles and that the reduced mandate could further strain neighbourhood spaces and increase traffic obstruction.
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