The foundation of every building project is the most important thing during construction. The entire building is set up upon the foundation of every project, and anything that goes wrong with the foundation affects the entire house structure completely. As such, builders pay paramount attention to the foundation of their building.
It’s possible to use whatever quality of materials in certain areas of the house, but low-quality materials are never acceptable in any building project. Given that, this is one reason why home builders spend more money during the foundation stage of their projects. Now, if you are wondering, here’s a rundown cost of how much it’ll cost to develop the foundation of a 3-bedroom building.
Cost Of Foundation For A 3-Bedroom Flat
Certain factors determine the price when it comes to the foundation of any house. Things like the site’s location, labor, and materials will determine the cost. However, it won’t cost as much for the foundation of a 3-bedroom flat as it’ll cost for a 6-bedroom flat. The major factor here is size.
However, here’s a cost breakdown of everything it’ll cost to set up the foundation of a 3-bedroom flat in Nigeria.
- Plank—5 pieces of Plank (1 by 12) = ₦7,000 – ₦9,000 (based on location)
- Pegs—5 bundles of pegs = ₦7,000 – ₦8,000 (based on location)
- Nails—2 inches and 3 inches = ₦1,000 – ₦2,000
- Rope—4 bundles = ₦700 – ₦1,200
- Labour—₦7,000 – ₦10,000
Cost Of Digging & Excavation
This is the first cost you’ll encounter during the foundation stage of your building stage. This area requires as many workforces as possible depending on how fast you need the project to be carried out. This part of the foundation stage will cost between ₦12,000 – ₦25,000.
Cost Of Binding
A typical foundation is about 150mm thick on the base, having a height of 0.45 meters and a length of 85.5 meters. Here’s a breakdown of the estimated cost.
- Cement —10 to 12 bags = ₦31,500 – ₦40,000
- Sand—20 tons of sand = ₦85,000 – ₦100,000
- Granite—20 tons of Granite = ₦100,000 – ₦120,000
Iron bars might not be necessary if the soil is firm enough in the site’s location. Water costs will be reduced if workers also have close access to water. But if not, the cost of water is between ₦25,000 – ₦35,000.
Based on these estimations, you’ll spend roughly ₦250,000 – ₦320,000 for binding.
Cost of Laying Foundation Blocks
The next is the cost of laying foundation blocks in the ground. If you are using 9 inches block for this project and laying four coaches, it will require things like:
- Cement —12 to 14 bags = ₦37,500 – ₦40,000
- Vibrated Blocks —650 pieces = ₦130,000 – ₦150,000
- Work relating to plumbing = ₦25,000 – ₦35,000
Sand is not budgeted here because the sand and granite from the binding work are expected to remain still and be enough for this stage.
Cost of Filling & Foundation Casting
During this process, you’ll need to factor in the cost of digging the soak-away and septic tank to reduce the cost. Because the sand from the soak-away will be used to fill parts of the foundation instead of buying new sand. After that, other remaining costs for this stage include:
- Laterite—About 3 trips to 20 —20 tons = ₦65,000 – ₦80,000 (based on location)
- Cement —25 bags = ₦75,000 – ₦85,000
- Nylon = ₦15,000 – ₦20,000
- Labour—₦35,000 – ₦40,000
The price estimation above highlights how much each stage of the foundation process of your building project will cost you. The price could also increase depending on the location of your site.