How long does house construction actually take once the calculator’s timeline estimate is generated?

The calculator's timeline is a planning-stage estimate based on area, storeys and package, and real timelines can move once soil conditions, approval delays or design finalisation enter the picture. A straightforward independent house without a basement typically takes several months from foundation to handover, while additional floors, a basement or a complex design will extend that. Monsoon months can also slow certain stages, such as excavation and external waterproofing, so build some calendar buffer around the estimate rather than treating it as a fixed date.