Building a 30x40 house in Bangalore can be a costly affair. The cost of construction depends on the type of materials used, the quality of construction, the labor costs, and the location of the house.

The cost of construction for a 30x40 house in Bangalore can range from Rs. 1,500 to Rs. 2,500 per square feet. This means that the total cost of construction for a 30x40 house in Bangalore can range from Rs. 45 lakhs to Rs. 75 lakhs.

To get an accurate estimate of the cost of construction for a 30x40 house in Bangalore, it is important to get quotes from multiple contractors. It is also important to get quotes from different types of contractors, such as civil contractors, masons, plumbers, electricians, and carpenters.

It is also important to get quotes from different types of materials, such as bricks, cement, sand, steel, and wood. It is also important to get quotes from different types of finishes, such as paint, tiles, and flooring.

Once you have the quotes from the contractors and the materials, you can compare them and decide which one is the best for your budget.

It is also important to consider the quality of the construction. It is important to hire experienced and reliable contractors who can provide quality work. It is also important to check the quality of the materials used.

It is also important to consider the labor costs. It is important to hire experienced and reliable laborers who can provide quality work.

It is also important to consider the location of the house. The cost of construction can vary depending on the location of the house.

Once you have all the quotes and estimates, you can compare them and decide which one is the best for your budget. It is important to keep in mind that the cost of construction for a 30x40 house in Bangalore can range from Rs. 45 lakhs to Rs. 75 lakhs.