Wetin be the main reason for this particular one?
To me there is inflation in Nigeria not just because of the dollar/ Naira currency saga but other factors too. The clear one to me is the oil and gas prices that are high most especially the popular petrol, if you look at the increase in this area you will see that it affects things local than even the dollar raise. An increase in price of petrol automatically increases the transportation prices and if this increases every sector also faces an increase.
Take for example a farmer who spends more in either transporting his goods to the market or even during the cultivation (irrigational farmers) he will definitely hike his own produce prices. Same thing applies to industries they rely on secondary power sources like through gas or petrol to make production and the higher the prices of this energy source the more they increase their products costs to meet up with demand.
As for housing sectors you see increase in the house rents because the owners are trying to meet up with the price of stuffs in the market and since there is no standard housing regulations they just increases it as they pleased