30×40 house construction cost in Hosur

The 30×40 plot is so common in Hosur's residential layouts that most local contractors quote rates using a 1,200-sqft reference plot by default. When someone in Hosur says they want a 3 BHK G+1, they almost always mean a 30×40 plot. After setbacks (1.5m front, 1m sides and rear), the usable ground floor interior runs about 27×37 feet — approximately 999 sqft — and at 60% coverage you get 720 sqft per floor. The standard layout is two bedrooms, living, dining, and kitchen on the ground floor with the master bedroom and one more room upstairs.

Parking is one of the first questions for a 30×40 build. A single covered car park requires 9×18 feet minimum, which fits within the front setback if the road is 20 feet or wider. Most Hosur layouts have 30-foot roads, making this possible. If the plot has a 20-foot approach road, the parking width is tighter. A two-car arrangement is not practical on this plot without losing the front garden entirely. Most 30×40 owners in Hosur build a single covered car porch on one side and leave a narrow garden strip on the other.

One of the common decisions on a 30×40 build in Hosur is whether to plan for a rental floor at the G+1 level. Adding a second kitchen, separate entrance, and basic sanitary fitting to the upper floor costs an extra ₹2.5–4 lakh at the construction stage but is significantly cheaper than retrofitting later. The upper floor typically rents for ₹7,000–₹11,000 per month in well-connected Hosur localities in 2026. This makes the 30×40 G+1 a common choice for homeowners who want both a family home and a rental income stream.

As of 2026. Hosur Town Municipality (HTM) jurisdiction. Rates verified against current BOQs.