If you don't have huge amount of money to buy a house mortgage should be your best option. You can do this by getting a house and start paying every month or based on the agreement you signed with the mortgage company. This is a good option for low salary eaners and small business owner.
Sadly, most people are low income earners especially in developing countries like Nigeria. Even getting mortgages here is almost impossible which is why we have so many tenants here. But the case is very different for people in Europe.