Step-by-Step Guide to Building a 4-Bedroom Duplex in Nigeria (2025) with Cost Estimates.

Building a 4-bedroom duplex in Nigeria involves multiple stages, from acquiring land to finishing the house. Below is a step-by-step guide with cost estimates, though costs vary based on location, material quality, andlabourr. 1. Land Acquisition The cost of land varies based on location: Lagos/Abuja: ₦10M - ₦50M+ Other cities: ₦3M - ₦15M Rural areas: ₦1M - ₦5M Estimated Cost: ₦5M - ₦30M 2. Building Plan & Approval Architectural & Structural Drawings: ₦250K - ₦1M Government Approval Fees: ₦300K - ₦1.5M (depends on location) Estimated Cost: ₦500K - ₦2.5M 3. Site Preparation & Foundation Clearing & Excavation: ₦300K - ₦700K Foundation (Concrete, Blocks, Iron Rods, Sand,Labourr, etc.): ₦4M - ₦6M Estimated Cost: ₦4.5M - ₦7M 4. Substructure (Ground Floor Slab) Materials (Cement, Sand, Granite, Iron Rods, etc.): ₦3M - ₦5MLabourr & Miscellaneous Costs: ₦1.5M - ₦2.5M Estimated Cost: ₦4.5M - ₦7.5M 5. Superstructure (Blockwork & Framing) Blocks (3,000 - 4,000 pieces): ₦1.5M - ₦2M Cement, Sand, Granite, Iron Rods, etc.: ₦3M - ₦5MLabourr & Miscellaneous Costs: ₦1.5M - ₦2.5M Estimated Cost: ₦6M - ₦9.5M 6. Roofing Woodwork (Trusses, Rafters, etc.): ₦2M - ₦3M Roofing Sheets Aluminiumm, Stone-Coated, etc.): ₦3M - ₦6MLabourr & Miscellaneous: ₦1M - ₦2M Estimated Cost: ₦6M - ₦11M 7. Doors & Windows Windows Aluminiumm or Casement Glass): ₦1M - ₦3M Doors (External & Internal – Wood, Metal, or Security Doors): ₦2M - ₦4M Estimated Cost: ₦3M - ₦7M 8. Electrical & Plumbing Works Wiring & Electrical Fittings: ₦2M - ₦4M Plumbing Materials & Installation: ₦2M - ₦4M Estimated Cost: ₦4M - ₦8M 9. Plastering & Finishing Plastering (Walls & Ceilings): ₦2M - ₦4M Painting (Interior & Exterior): ₦1M - ₦3M POP (Ceiling & Decoration): ₦2M - ₦5M Estimated Cost: ₦5M - ₦12M 10. Flooring & Tiling Tiles, Cement, Grout, etc.: ₦3M - ₦6MLabourr & Miscellaneous: ₦1M - ₦2M Estimated Cost: ₦4M - ₦8M 11. Fencing & Gate Fencing (Blockwork, Cement, Iron Rods, etc.): ₦2M - ₦5M Gate & Installation: ₦1M - ₦2M Estimated Cost: ₦3M - ₦7M 12. Miscellaneous & Contingency Additional costs for unforeseen expenses: ₦2M - ₦5M Total Estimated Cost Breakdown Stage Estimated Cost (₦) Land Acquisition 5M - 30M Building Plan & Approval 500K - 2.5M Foundation 4.5M - 7M Substructure 4.5M - 7.5M Superstructure 6M - 9.5M Roofing 6M - 11M Doors & Windows 3M - 7M Electrical & Plumbing 4M - 8M Plastering & Finishing 5M - 12M Flooring & Tiling 4M - 8M Fencing & Gate 3M - 7M Miscellaneous 2M - 5M Total Cost ₦44M - ₦115M Final Thoughts Cost varies by location (Lagos/Abuja is more expensive). Material quality affects pricing (imported materials cost more). Using a project manager can save costs and prevent wastage.Labour costs fluctuate, so negotiate wisely.