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Building a duplex home in Nigeria is an exciting yet challenging endeavor that requires meticulous planning and financial consideration. As the trend towards duplex construction gains momentum, it becomes crucial to delve into the essential aspects, including a detailed breakdown of the costs involved. In this comprehensive guide, we will explore the estimated expenses and factors that may influence the budget, providing valuable insights for prospective builders.

Cost Breakdown for Building a Duplex in Nigeria

Cost of Building a 3-Bedroom Duplex:

  1. Substructures: N2,700,000 – N5,200,000
  2. Frames: N1,500,000 – N2,800,000
  3. Upper floor: N1,600,000 – N3,170,000
  4. Internal and external walls: N2,300,000 – N4,250,000
  5. Roofing: N1,750,000 to N3,750,000
  6. Staircase: N350,000 – N480,000
  7. Doors: N1,650,000 – N2,970,000
  8. Windows: N2,100,000 – N3,950,000
  9. Wall finishes: N2,150,000 – N4,250,000
  10. Floor finishes: N1,750,000 – N3,400,000
  11. Ceiling finishes: N480,000 – N950,000
  12. Plumbing installations: N1,450,000 – N2,750,000
  13. Electrical installations: N1,700,000 – N3,050,000
  14. Fittings & fixtures: N1,020,000 – N1,530,000

Total for 3-Bedroom Duplex: N22,500,000 – N42,500,000

Cost of Building a 4-Bedroom Duplex:

  1. Substructures: N3,800,000 – N6,800,000
  2. Frames: N2,000,000 – N4,100,000
  3. Upper floor: N2,150,000 – N4,250,000
  4. Internal and external walls: N2,850,000 – N5,500,000
  5. Roofing: N2,490,000 to N4,800,000
  6. Staircase: N380,000 – N600,000
  7. Doors: N2,020,000 – N3,900,000
  8. Windows: N2,900,000 – N5,700,000
  9. Wall finishes: N3,000,000 – N5,500,000
  10. Floor finishes: N3,350,000 – N4,500,000
  11. Ceiling finishes: N700,000 – N1,200,000
  12. Plumbing installations: N2,300,000 – N4,500,000
  13. Electrical installations: N1,845,000 – N3,750,000
  14. Fittings & fixtures: N1,215,000 – N2,400,000

Total for 4-Bedroom Duplex: N30,000,000 – N57,500,000

Cost of Building a 5-Bedroom Duplex:

  1. Substructures: N5,000,000 – N8,775,000
  2. Frames: N2,900,000 – N4,995,000
  3. Upper floor: N3,150,000 – N5,200,000
  4. Internal and external walls: N4,300,000 – N7,020,000
  5. Roofing: N3,800,000 to N6,010,000
  6. Staircase: N620,000 – N800,000
  7. Doors: N2,950,000 – N5,190,000
  8. Windows: N4,500,000 – N7,020,000
  9. Wall finishes: N4,300,000 – N7,020,000
  10. Floor finishes: N3,375,000 – N5,660,000
  11. Ceiling finishes: N945,000 – N1,485,000
  12. Plumbing installations: N3,200,000 – N5,602,500
  13. Electrical installations: N3,600,000 – N4,320,000
  14. Fittings & fixtures: N1,860,000 – N2,902,500

Total for 5-Bedroom Duplex: N44,500,000 – N72,000,000

Summary: Cost of Duplex in Nigeria

  • 3-bedroom duplex: N22.5m to N42.5m
  • 4-bedroom duplex: N30m to N57.5m
  • 5-bedroom duplex: N44.5m to N72m

Duplex House in Nigeria: Definition

In Nigeria, a duplex house refers to a residential building comprising two floors. Unlike the global definition of a duplex as a structure housing two separate families, Nigerian duplexes are typically occupied by a single family. The ground floor commonly hosts the kitchen and main living room, while the upper floor accommodates private rooms, including the master bedroom, connected by a staircase.

Pros and Cons of Building a Duplex in Nigeria


  1. More space within: Duplexes offer ample interior space, allowing for spacious living rooms, kitchens, and large rooms.
  2. Larger compound: The vertical structure frees up surrounding space, reducing roofing costs and providing a more expansive compound.
  3. Class: Duplexes are often associated with prestige, making them a popular choice among high-profile individuals in Nigeria.
  4. Good view: Balconies on the top floor provide an excellent vantage point for observing the surroundings.
  5. Security: The vertical layout enhances security by making it challenging for intruders to access upper-floor windows.


  1. More expensive: Duplex construction is costlier due to additional elements like decking, pillars, beams, and staircases, requiring substantial concrete and steel reinforcements.
  2. Inconvenience: Frequent movement between the top and ground floors may pose challenges in daily activities.


building a duplex in Nigeria involves careful consideration of costs, benefits, and potential drawbacks. Understanding the nuances of duplex construction can empower individuals to make informed decisions as they embark on this significant investment. Whether opting for a 3-bedroom, 4-bedroom, or 5-bedroom duplex, the outlined costs and insights aim to guide aspiring homeowners through the complexities of the building process.

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