Is rainwater harvesting and sump/tank provision included in the estimate?

Villa plots frequently rely on a mix of borewell, tanker supply and rainwater harvesting rather than a fully piped municipal connection, so sump and tank sizing along with rainwater harvesting provisions required by the layout's building bye-laws are factored into the villa estimate's MEP allowance. Confirm with your layout association or BBMP whether rainwater harvesting is mandatory for your specific plot size, since requirements vary. Under-sizing water storage is one of the more common regrets villa owners report after move-in.