House construction cost in Kolkata (2026)

Construction cost per sq ft in Kolkata: four finish levels

In Kolkata, a G+1 house costs about ₹1,550–1,900 per sq ft with economy finishes and ₹3,100–3,750 with luxury finishes. All four tiers use the same local prices and structure; only finishes and services change.

Basis: G+1, isolated footings, roughly 3 m floor height, conventional brickwork and site-mixed M25 cost allowances. Line rates include overheads/profit; the total adds 5% contingency. Each band is ±10% around that total, rounded to ₹50/sq ft. Finish rates are national assumptions; only the listed materials and wages are local.

Excluded: land, authority and professional fees, utility connections, special foundations, basement, rock breaking, major dewatering, interiors, furniture, borewell, lift and solar. Compound wall and sump are off in the worked example; they can be added in the calculator.

Material prices in Kolkata: sources and selected inputs

The Kolkata model prices cement at ₹383 a bag, steel at ₹59/kg and red bricks at ₹8,500 per 1,000, each taken from a reported local price listed below.

The brick price is per piece and becomes a per-1,000 input; sand and 20 mm aggregate use tonne-to-cft assumptions. Reconcile truck quantity and delivery access before using the budget. The local contractor comparison below is a reported percentage with transparent arithmetic, not a fixed labour quote; the SiteSetu labour result is calculated independently from wages and work quantities.

The material and wage ranges are August planning evidence, not October supplier invoices. The local labour-contract comparison is a builder's percentage estimate, not a verified standalone per-sq-ft quote. Freight, narrow-lane handling, foundation design and drainage can change the actual budget. The rates below preserve the sources' stated billing basis. They have not been normalised to a single delivered invoice. Confirm all payable additions before using the budget to place an order.

Ready-mix reference: M20 ₹4,246–5,361/m³; M25 ₹4,761–5,782/m³, reported. InfraLens — Kolkata published planning ranges · 12 August 2026 RMC is not used in the house estimate above. The engine builds concrete cost from cement, sand, aggregate, labour and sundries; replacing that with an RMC quote requires removing the corresponding site-mix inputs and pricing pumping/placing separately.

Mason, helper and labour-only construction rates

Labour for a full standard house in Kolkata works out to about ₹550–650 per sq ft in our model; the reported local labour-contract reference is 30–35% of the builder's with-material budget.

Local contract reference: 30–35% of the builder's with-material budget, reported. Balaji Builds reports this labour-only share against its Kolkata standard band of ₹2,242–2,950/sq ft. Multiplication gives ₹672.60–1,032.50/sq ft, a derived comparison only, not a separately quoted contract rate. A dated fixed-rate Kolkata labour tender was not verified. Balaji Builds — Kolkata labour-only comparison · 2026 reference; no rate-update day stated

Our labour figure covers civil work, finishes, electrical and plumbing, with overheads and contingency. It is computed from wages and quantities, not quoted. Compare shuttering hire, scaffolding, curing, tile work, services and supervision line by line before choosing a contract.

Day rates describe one worker's time. A per-sq-ft contract also depends on output, included trades and who supplies tools. These references are not a minimum-wage determination. Labour is already included in the with-material total; do not add it twice.

2-katha illustrative plot, G+1: a worked Kolkata estimate

A G+1 house of 2,016 sq ft on this plot costs about ₹36.2 lakh to ₹44.2 lakh in Kolkata with standard finishes.

Using the Bengal cottah/katha convention of 720 sq ft, 2 katha = 1,440 sq ft of land. An assumed 70% footprint gives 1,008 sq ft a floor and 2,016 sq ft across G+1. The CAG reference records the Bengal conversion; confirm the deed's unit. This footprint is an estimating input, not a KMC coverage or FAR entitlement.

CAG — West Bengal report, Bengal cottah conversion · Report 1 of 2020 (year ended March 2018)

Standard finishes, with material, no wall or sump extras. 1,008 × 2 = 2,016 sq ft. The unrounded engine rate is ₹1,993.88/sq ft (shown to two decimals only to audit this example).

Calculation: ₹38,28,244.48 direct/overhead subtotal × 1.05 = ₹40,19,656.71 including contingency. Each stage already includes its share of the 5%. Whole-rupee stage rounding is allocated so the rows add to ₹40,19,657. Steel and shuttering for footings are grouped in “RCC frame” by the engine, so these rows are not a contractor payment schedule.

Budget range: ₹36.2 lakh to ₹44.2 lakh. The exact arithmetic makes the estimate traceable; it does not make the final building price exact.

1,000, 1,200 and 1,500 sq ft house examples

These are floor areas, not plot sizes. Ground-only work carries the foundation over less built-up area. Adding an upper floor to an existing house also needs a structural-capacity assessment; this new-build model does not assess extensions.

Local approvals, plan fees and rules

Approval fees are not in the estimate. Get the authority's itemised demand note for your plot and budget it separately.

Soil, foundations, monsoon and water

The estimate assumes ordinary soil and isolated footings. Your soil report decides whether the foundation costs more.

Kolkata house construction cost FAQ