Construction cost calculator

How much does it cost to build a house in 2026?

The quickest honest answer is area × rate. Builders quote a rate per square foot (per square metre in the UK and Europe) for a finish level, and the build cost is that rate times the built-up area of all floors. This tool starts from 2026 averages and lets you swap in your own figures as soon as you have a quote.

In India, InfraLens puts 2026 house construction at about ₹1,500–2,000 a sq ft for a basic finish, ₹2,000–2,800 for standard and ₹3,000–5,000 or more for premium, before land, design fees and approvals. The tool uses the middle of each band as the India average (₹1,750, ₹2,400 and ₹3,500), with ₹5,000 for luxury, the top of the premium band. Metro cities sit higher (Mumbai and Bangalore) and smaller towns lower, so treat the average as a starting point.

For visitors elsewhere, the tool switches to local averages: about $150–275 a sq ft in the US (Opendoor, 2026), £1,650–3,500 a m² in the UK (Pocketwise's bands; Humphreys & Sons give about £2,200 a m² for a middle-of-the-road build) and €2,350–4,500 a m² in the euro area, based on Germany's 2026 turnkey offers (median about €2,700 a m², Fertighaus.de) and Austria's 2026 bands.

What the rate usually leaves out

A per-sq-ft rate covers the house itself: foundation, structure, walls, roof, flooring, plumbing, wiring, doors, windows and paint at the chosen finish. Most quotes leave out:

• the land and its registration;
• the architect's and structural engineer's fees, and plan approval;
• the compound wall, gate and landscaping;
• the sump, septic tank and borewell;
• water and electricity connections;
• interiors such as the modular kitchen, wardrobes and false ceilings.

Turn on Add extras to add a safety margin, fees as a percentage, and these other costs as one amount.

Materials: the rules of thumb

For a concrete-frame house with brick walls, the usual way of building in India, builders estimate materials per sq ft of built-up area:

These are the middle of the ranges Houseyog and Brick&Bolt give; real quantities depend on the drawings, the soil and the structural design. Add 5–10% for wastage when you order. Turn on My material prices to see what they cost at your supplier's rates: in 2026 cement is about ₹380–430 a bag and TMT steel about ₹58–68 a kg.

Where the money goes

InfraLens splits a typical Indian build like this: steel 20–24%, finishing 20–25%, cement 12–15%, plumbing and electrical 10–15%, aggregates 7–9%, bricks 5–8%, and labour 25–30%. The answer card shows these as four groups (structure materials, finishing, plumbing and electrical, labour), scaled to 100%. That is why locking steel and cement prices early, or buying them yourself, can make a real difference.

Example: a family home in Kallakurichi

Murugan plans a 1,200 sq ft G+1 house (600 sq ft on each floor) with a standard finish.

1. At the India average of ₹2,400 a sq ft, the build costs ₹28,80,000.
2. A 10% safety margin adds ₹2,88,000, making ₹31,68,000.
3. Materials, by the rules of thumb: about 480 bags of cement, 4.8 tonnes of steel, 1,680 cft of sand, 1,500 cft of aggregate and 10,800 bricks.
4. A local builder quotes ₹2,150 a sq ft. He turns on My own rate and types it: the build comes to ₹25,80,000, about ₹3 lakh less than the average.
5. With Payment stages on, he sees about ₹2,88,000 due at booking and ₹4,32,000 at the foundation.

Payment stages

Builders are usually paid in stages as the work reaches each point. A common pattern:

• 10% at booking;
• 15% at the foundation;
• 10% at the plinth;
• 25% across the roof slabs;
• 15% for walls;
• 15% for plastering and flooring;
• 10% at handover.

Your contract decides the real schedule: never pay well ahead of the work done.

How to use this tool

1. Type the built-up area of all floors together and pick sq ft or m².
2. Choose a finish and the number of floors.
3. Read the total, the cost per sq ft and the materials list.
4. Got a quote? Turn on My own rate. Need the full budget? Turn on Add extras. Buying materials? Turn on My material prices.