A well-finished compound is no longer a luxury for estates and commercial properties. Landscaping improves drainage and shade and the appearance of a home, while paving reduces mud and erosion during the rains in Nigeria. But the final bill is more dependent on the quality of the groundworks, materials and finishing than it is on the size of the building.
For an average residential plot of 500-800 square meters, paving 200-400 square meters with interlocking concrete blocks costs around ₦18,000-₦35,000 per square metre (installation included).
The rate includes excavation, hardcore filling, sand bedding, compacting and laying. So, a paved area of 300 square meters would cost about ₦5.4 million – ₦10.5 million.
Cheap quotes often don’t include the sub-base. This is a serious omission, especially in Lagos, Niger Delta and other areas with soft or waterlogged soil. If the excavation, compaction and drainage are not done properly, in a few rainy seasons the blocks may sink, spread or get weeds.
Other paving options have varying price points. Plain concrete is typically about the same price as or a little more expensive than standard interlocking blocks, depending on the reinforcement and thickness. Natural stone, granite setts and imported tiles can drive the cost over ₦40,000 per square meter. Asphalt is economical for large driveways, but is less common for smaller residential compounds. Still requires good subgrade preparation.
Landscaping is just as variable. Basic soft landscaping (topsoil, grass, shrubs and locally available trees) generally costs ₦8,000-₦25,000 per square metre of planted area. For a small garden of 100-150 square metres, you will likely pay ₦800,000-₦3.75 million. Feature walls, pergolas, raised planters, outdoor kitchens, water features and imported plants can increase that amount by a factor.
Drainage should be a budgeted core construction item, not an afterthought. Open or covered drains can cost around ₦25,000-₦60,000 per linear metre depending on depth, reinforcement and covers. Poor drainage is one of the most common reasons that new paved compounds fail.
To put this in perspective, a 600-square-metre site with 300 square meters of paving, 120 square meters of planting and 50 metres of drainage could cost about ₦8 million–₦18 million, not counting fancy lighting, irrigation, fencing or a new gate. Add 10-20 per cent for design, transport, price changes and unforeseen ground conditions.
Prices vary widely by location. In Lagos and Abuja, labour, logistics and land conditions generally command premiums, but in smaller cities, distance from quarries and block factories can push up costs. With high inflation in Nigeria and volatile prices for cement, fuel and transport, written quotes don’t hold for long.
A carefully measured design and bill of quantities from a landscape architect, quantity surveyor or experienced civil contractor is the best bet.
Look at quotations on the same specs, block thickness, base depth, drainage details and plant sizes, not just the headline total. In landscaping and paving, the cheapest quote is usually the most expensive repair waiting to happen.