How to Calculate Construction Cost for Your House

Construction cost in India is broadly divided into: material cost (55-65% of total), labour cost (25-30%), architect and engineer fees (5-12%), government approvals and fees (3-5%), and contingency (5-10%). Material cost includes cement, steel, bricks/blocks, sand, aggregate, plumbing, electrical, doors, windows, tiles, paint, and waterproofing. Labour includes mason, carpenter, plumber, electrician, painter, and helper wages. In 2026, the all-inclusive construction cost for a standard residential building in Indian metros ranges from ₹1,800-2,500/sq ft for mid-range quality and ₹2,500-3,500+/sq ft for premium quality. Tier 2 cities are 10-20% cheaper. These rates include structure, finishing, and basic fittings but exclude land cost, interior furniture, and landscaping.

Start with your approved building plan. Built-up area includes the carpet area plus wall thickness and balcony areas. For a typical G+2 residential building on a 30x40 site in Bengaluru with 60% ground coverage, you get approximately 720 sq ft per floor. With three floors, that is 2,160 sq ft of built-up area. Add staircase area (approximately 80-100 sq ft per floor) and you reach roughly 2,400-2,460 sq ft total built-up area. Do not confuse built-up area with super built-up area (which includes common areas in apartments) or carpet area (the usable floor area within walls). For independent houses, your construction cost estimate should be based on the total built-up area as shown in the approved plan. Include covered car parking (approximately 150 sq ft per car) and utility areas.

The major materials and their approximate costs for a 2,000 sq ft mid-range house in 2026: Cement (OPC 53 grade): ₹380-420 per bag, approximately 350-400 bags needed, total ₹1.3-1.7 lakh. Steel (Fe 500D TMT bars): ₹55,000-65,000 per tonne, approximately 3-4 tonnes needed, total ₹1.7-2.6 lakh. Bricks/Concrete blocks: ₹7-12 per brick or ₹40-55 per AAC block, total ₹1-1.5 lakh. River sand or M-sand: ₹45,000-65,000 per unit (100 cft), approximately 3-5 units, total ₹1.5-3.2 lakh. Aggregate (jelly): ₹1,800-2,500 per tonne, approximately 20-25 tonnes, total ₹40,000-60,000. Plumbing materials: ₹1.5-3 lakh total. Electrical materials: ₹1.5-3 lakh total. Doors and windows: ₹2-5 lakh total. Tiles and flooring: ₹2-5 lakh total. Paint: ₹1-2.5 lakh total. These are indicative — actual costs depend on brand choices and local market rates.

Labour costs vary significantly across Indian cities. Daily wages in 2026 for Bengaluru: Mason ₹800-1,000, Helper ₹500-600, Carpenter ₹800-1,000, Plumber ₹700-900, Electrician ₹700-900, Painter ₹600-800, Bar bender ₹800-1,000. For a 2,000 sq ft G+2 house, expect approximately 12-18 months of construction with a team of 8-12 workers at any given time. Total labour cost typically works out to ₹600-800/sq ft in metros. Many builders in India use a contractor model where you pay a per-sq-ft rate (₹350-500/sq ft for labour only) to a building contractor who manages all labour. This is simpler to manage but slightly more expensive than hiring labour directly. In either case, factor in labour welfare cess (1% of construction cost, mandatory under law).

Beyond construction, budget for these mandatory costs: Building plan approval fees (₹20,000-2,00,000 depending on the city and project size), architect fees (5-12% of construction cost or ₹50-150/sq ft), structural engineer fees (₹1-2/sq ft or a lump sum of ₹30,000-1,00,000), soil testing (₹5,000-15,000), survey charges (₹3,000-10,000), BESCOM (electricity) connection charges (₹15,000-50,000 depending on load), BWSSB (water) connection charges (₹10,000-30,000), and Occupancy Certificate fees. Additionally, if your site is on revenue land, you may need land conversion charges. Some municipalities also charge betterment charges, development charges, and green building cess. For a 2,000 sq ft house in Bengaluru, these non-construction costs add up to approximately ₹3-6 lakh.

A BOQ is the most accurate way to estimate construction cost. It lists every material, quantity, unit rate, and total cost item by item. Your architect or a quantity surveyor can prepare this. A standard BOQ includes: earthwork and excavation, PCC and RCC work (foundation, columns, beams, slabs), brickwork/blockwork, plastering, flooring and tiling, plumbing and sanitary, electrical and lighting, doors and windows, painting, waterproofing, and external works (compound wall, gate, landscaping). For a 2,000 sq ft mid-range house in Bengaluru, a well-prepared BOQ will show a total construction cost of approximately ₹36-50 lakh (₹1,800-2,500/sq ft). Always add 5-10% contingency for price escalation and unforeseen items. Review the BOQ with your architect before finalising the budget.