The present Cost of Construction in Bangalore varies for Rs 1400 / sq ft to Rs 1650 / sq ft as per the Basic finishes given below. Basic Finishes for a Construction at Bangalore. The present Cost of Construction in Bangalore varies for Rs 1400 / sq ft to Rs 1650 / sq ft as per the Basic finishes given below.he basic layout G+2 floors with 1800 sq ft of 2bhk spacious house on each floor, now based on these details what would be the approximate construction cost in bangalore for a Total built up area of 5400 sq ft. Ground Floor: 2 car parking + 2bhk house. First Floor: 2 bhk +1 big balcony.