Building A 4-Bedroom Duplex: Block Estimates For Nigerian Homes

Building a duplex home is no easy feat. It requires more planning and groundwork than most other types of homes and is considered significantly more expensive. The cost of building a duplex in Nigeria varies depending on the number of rooms, location, and quality of building materials used.

The cost of building a 4-bedroom duplex in Nigeria ranges from NGN 30,000,000 to NGN 57,500,000. This includes the cost of substructures, frames, the upper floor, internal and external walls, roofing, staircase, doors, windows, wall finishes, floor finishes, ceiling finishes, plumbing installations, electrical installations, and fittings and fixtures.

The cost of building a duplex can be further broken down into the cost of materials and labour. For example, the material cost for a 4-bedroom duplex ranges from NGN 16,000,000 to NGN 30,000,000, while the labour cost ranges from NGN 14,000,000 to NGN 27,500,000.

It is important to note that the cost of building a duplex can vary depending on factors such as location, quality of building materials, and labour charges. Therefore, it is advisable to consult with professionals and get multiple quotes before starting construction.

The cost of building a 3-bedroom duplex in Nigeria

• Substructures: NGN 2,700,000 – NGN 5,200,000
• Frames: NGN 1,500,000 – NGN 2,800,000
• Upper floor: NGN 1,600,000 – NGN 3,170,000
• Internal and external walls: NGN 2,300,000 – NGN 4,250,000
• Roofing: NGN 1,750,000 to NGN 3,750,000
• Staircase: NGN 350,000 – NGN 480,000
• Doors: NGN 1,650,000 – NGN 2,970,000
• Windows: NGN 2,100,000 – NGN 3,950,000
• Wall finishes: NGN 2,150,000 – NGN 4,250,000
• Floor finishes: NGN 1,750,000 – NGN 3,400,000
• Ceiling finishes: NGN 480,000 – NGN 950,000
• Plumbing installations: NGN 1,450,000 – NGN 2,750,000
• Electrical installations: NGN 1,700,000 – NGN 3,050,000
• Fittings and fixtures: NGN 1,020,000 – NGN 1,530,000

The total estimated cost of building a 3-bedroom duplex in Nigeria is NGN 22,500,000 to NGN 42,500,000.

The cost of building a 4-bedroom duplex in Nigeria

• Substructures: NGN 3,800,000 to NGN 6,800,000
• Frames: NGN 2,000,000 to NGN 4,100,000
• Upper floor: NGN 2,150,000 to NGN 4,250,000
• Internal and external walls: NGN 2,850,000 to NGN 5,500,000
• Roofing: NGN 2,490,000 to NGN 4,800,000
• Staircase: NGN 380,000 to NGN 600,000
• Doors: NGN 2,020,000 to NGN 3,900,000
• Windows: NGN 2,900,000 to NGN 5,700,000
• Wall finishes: NGN 3,000,000 to NGN 5,500,000
• Floor finishes: NGN 3,350,000 to NGN 4,500,000
• Ceiling finishes: NGN 700,000 to NGN 1,200,000
• Plumbing installations: NGN 2,300,000 to NGN 4,500,000
• Electrical installations: NGN 1,845,000 to NGN 3,750,000
• Fittings and fixtures: NGN 1,215,000 to NGN 2,400,000

The cost of building a 5-bedroom duplex in Nigeria

Building a 5-bedroom duplex in Nigeria is estimated to cost between N44.5 million and N72 million. This cost is dependent on several factors, including the location of the property, the cost of building materials in that area, the quality of building materials, and the charges of professionals.

• Substructures
• Frames
• Upper floor
• Internal and external walls
• Roofing
• Staircase
• Doors
• Windows
• Wall finishes
• Floor finishes
• Ceiling finishes
• Plumbing installations
• Electrical installations
• Fittings and fixtures

The cost of each of these components will vary depending on the specific choices made during the building process. For example, the type of roofing material chosen will affect the cost of the roofing component. Similarly, the choice of wall finishes, such as paint or wallpaper, will impact the cost of that component.

It is important to note that the above estimate does not include mechanical or electrical requirements, finishes, and preliminaries to the construction. These additional costs can significantly impact the overall cost of building a 5-bedroom duplex in Nigeria. Therefore, it is essential to carefully plan and budget for these additional expenses when considering the total cost of the project.

The definition of a duplex house in Nigeria

A duplex in Nigeria can be thought of as a house where two different units (on two different floors) are stacked on top of one another, like apartments. Duplexes have at least two floors, and there can be functioning apartments on each floor, making this type of home perfect for bigger families.

When one mentions a duplex in Nigeria, this can also be called either a detached, semi-detached, or terraced house, depending on how the duplex is designed/arranged.

A detached duplex is a standalone duplex that does not share a wall with the neighbouring building. This type of house is usually owned by the rich and famous. A detached duplex is always spacious, and you tend to have your own private compound.

A semi-detached duplex is a type of house where a pair of duplexes are built side by side, sharing a common wall called a party wall. The semi-detached differs from the terrace in that the terrace shares a wall on both sides, except for the corner piece. They are also better than the detached because the cost of building is lower than that of the fully detached.

A terraced duplex is one of a row of similar houses joined together by their sidewalls. Terrace duplexes are sometimes called townhouses, and they are usually built upon two or three floors. The advantage of terraced duplexes is that they are more affordable than semi-detached and detached duplexes.

The pros and cons of building a duplex house in Nigeria

Building a duplex house in Nigeria has its advantages and disadvantages. Here is a detailed look at the pros and cons to help you make an informed decision:

The Pros of Building a Duplex House in Nigeria:

• Maximized Space: Duplex houses typically have two floors, which means more surrounding space will be freed up compared to bungalows, where every part of the house is on the ground. This results in the consumption of less ground space, and you will also spend less on roofing since the entire area will be roofed.
• Balconies with a View: Most duplexes have balconies on the top floor, offering a great view of the surrounding area. From the balcony, you can easily keep an eye on what's happening within or outside your property's perimeter.
• Enhanced Security: Duplexes offer better security than bungalows and ordinary houses. Bungalow windows are typically near the ground, making them easy targets for burglars. In contrast, duplex windows are harder to reach, especially those on the top floor, providing an extra layer of security.
• Aesthetic Appeal and Social Status: Duplex houses are considered more aesthetically appealing than bungalows and are often associated with high-end estates, politicians, business people, and celebrities in Nigeria. As such, they represent class and social status.
• Privacy: Duplexes offer the privacy of a single-family home without sharing walls with neighbours, making them more spacious than average apartments.

The Cons of Building a Duplex House in Nigeria:

• Higher Construction Costs: Building a duplex house typically costs more than constructing a traditional home due to additional expenses such as staircases, pillars, decking, and beams. These features require a large amount of steel and concrete reinforcement, driving up the overall cost.
• Inconvenience and Accessibility: Moving between the top and ground floors multiple times a day can be inconvenient and tiresome, especially for older individuals or those with limited mobility. As the owners age or experience health issues, navigating a duplex may become increasingly challenging.

Frequently asked questions