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Cost of building a 4-bedroom duplex + BQ in Badagry (2026)

Estimated for Badagry, Lagos (238 m² floor area) using current material prices and local labour rates.

Standard finish
₦94,860,550
Basic ₦77.4M · Luxury ₦149.0M · ₦398,574/m² · without BQ ₦78.6M
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Cost breakdown

ElementShareCost
Foundation7.4%₦7,007,305
Structure21.7%₦20,573,869
Finishes25.1%₦23,812,624
Services11.3%₦10,693,314
External Works23.2%₦21,995,871
Prelims & Contingency11.4%₦10,777,567
Total100%₦94,860,550

Materials you'll need

MaterialApprox. quantityCost at today's prices
Cement (50kg bags)952 bags₦12,181,888
Sandcrete blocks (6" & 9")8,213 blocks₦7,391,898
Iron rods4.8 tonnes₦3,816,000
Sharp sand180 tonnes₦2,344,940
Granite115 tonnes₦2,294,600

Construction timeline (8 months)

PhaseMonthsCost
Site preparation1–1₦1.7M
Foundation1–2₦7.0M
Structure2–4₦16.7M
Roofing4–5₦3.9M
Services 1st fix5–6₦4.8M
Plastering & screeding5–6₦4.8M
Interior finishes6–8₦19.1M
Services 2nd fix7–8₦5.9M
External works7–8₦22.0M
Snagging & handover8–8₦9.1M
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Compare with nearby areas

Lekki₦103.6M standardIkoyi₦108.5M standardVictoria Island₦108.6M standardAjah₦100.5M standardIbeju-Lekki₦98.7M standardEpe₦96.1M standard

Frequently asked questions

How much does it cost to build a 4-bedroom duplex + BQ in Badagry?

About ₦94.9M with standard finishing, ₦77.4M basic and ₦149.0M luxury (2026 prices).

How long does it take to build a 4-bedroom duplex?

About 8 months with steady funding.

How many bags of cement does a 4-bedroom duplex need?

Roughly 952 bags of 50kg cement.

Read more: 4-bedroom duplex costs across Nigeria · 12 ways to reduce building cost

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