Cost of building a 6-bedroom duplex + BQ in Port Harcourt GRA (2026)
Estimated for Port Harcourt GRA, Rivers (322 m² floor area) using current material prices and local labour rates.
Standard finish
₦125,331,156
Basic ₦101.7M · Luxury ₦196.3M · ₦389,227/m² · without BQ ₦107.2M
Customise this estimate →Cost breakdown
| Element | Share | Cost |
|---|---|---|
| Foundation | 7.8% | ₦9,772,875 |
| Structure | 23.3% | ₦29,170,184 |
| Finishes | 26.3% | ₦33,001,573 |
| Services | 11.9% | ₦14,955,347 |
| External Works | 19.5% | ₦24,478,172 |
| Prelims & Contingency | 11.1% | ₦13,953,005 |
| Total | 100% | ₦125,331,156 |
Materials you'll need
| Material | Approx. quantity | Cost at today's prices |
|---|---|---|
| Cement (50kg bags) | 1,164 bags | ₦14,903,808 |
| Sandcrete blocks (6" & 9") | 9,095 blocks | ₦8,185,284 |
| Iron rods | 6.2 tonnes | ₦4,976,000 |
| Sharp sand | 214 tonnes | ₦2,782,780 |
| Granite | 141 tonnes | ₦2,817,000 |
Construction timeline (9 months)
| Phase | Months | Cost |
|---|---|---|
| Site preparation | 1–1 | ₦2.1M |
| Foundation | 1–2 | ₦9.8M |
| Structure | 2–5 | ₦23.3M |
| Roofing | 5–6 | ₦5.9M |
| Services 1st fix | 5–6 | ₦6.7M |
| Plastering & screeding | 6–7 | ₦6.6M |
| Interior finishes | 7–9 | ₦26.4M |
| Services 2nd fix | 8–9 | ₦8.2M |
| External works | 8–9 | ₦24.5M |
| Snagging & handover | 9–9 | ₦11.9M |
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Frequently asked questions
How much does it cost to build a 6-bedroom duplex + BQ in Port Harcourt GRA?
About ₦125.3M with standard finishing, ₦101.7M basic and ₦196.3M luxury (2026 prices).
How long does it take to build a 6-bedroom duplex?
About 9 months with steady funding.
How many bags of cement does a 6-bedroom duplex need?
Roughly 1,164 bags of 50kg cement.
Read more: 6-bedroom duplex costs across Nigeria · 12 ways to reduce building cost
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