Cost to build a 100 sqm house in Lagos in 2026

Updated 2026 · Nigeria · Reference estimate

In short: for a 100 sqm house in Lagos, expect roughly 44,200,000 ₦ for an economy finish, up to 102,000,000 ₦ for high-end. Plan for about 240 bags of cement, 2,261 blocks, 1,747 kg of steel and 21.8 m³ of concrete. These are the items a contractor can inflate, so these are the numbers to have proven.

Estimated budget in Lagos by finish level

Level	Price / sqm	Total (100 sqm)
Economy	442,000 ₦	44,200,000 ₦
Standard	663,000 ₦	66,300,000 ₦
High-end	1,020,000 ₦	102,000,000 ₦

Indicative 2026 ranges, turnkey finish, excluding land and administrative fees. They help you spot an abnormally high quote, not replace a proper bill of quantities.

Material quantities for 100 sqm (single storey)

Item	Estimated quantity
Cement (50 kg bags)	240 bags
Blocks 20x20x40	2,261 u
Rebar steel	1,747 kg (~163 HA12 bars)
Total concrete to pour	21.8 m³
Sand	12 m³
Gravel	17 m³

For a two-storey house, the structure (concrete, steel, cement) roughly doubles, while the ground footprint is divided by the number of floors.

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How to avoid an inflated quote in Lagos

On a site managed from abroad, overcharging almost always hits three areas: structural materials (cement, steel), inflated quantities, and overbilled labour. Three simple reflexes:

Always compare the quote you receive to an independent reference estimate like the one above. A 10 to 15 percent gap is normal; beyond that, ask for explanations.
Pay by stages, never more than 20 to 25 percent upfront, and demand proof before each stage (a photo of the rebar before pouring, cement bags counted at delivery).
Where possible, buy the major materials yourself and have them delivered to site, rather than advancing cash to the contractor.

Get your exact plan and bill of quantities

The figures above are orders of magnitude for Lagos. For your exact project, describe your house on nokah or import an existing plan: you get the 3D plan, the detailed bill of quantities and a stage budget in Nigeria's currency. You then face your builder with numbers they cannot argue with.