Pls my dear fellows, how much do you think it will cost me to set up a boutique business in Abj or its suburb

It depends on your situation. With as little as N50,000 you can start from home or if you want to rent a shop then we may be talking anything from N500,000 excluding rent and other costs. You might also find this article interesting Make money from Boutique Business

Its all depend on your target market, your environment, what they can afford, and so on.
It doesn't base on the amount, but people who are cominng to buy.
Take a time out to work around your area to see and know what the environment is like, what they can afford, do they like cheap things, do they buy from boutique, all this are fact you must consider before doing business.

You can contact me for supplies of cloths and shoes from the United states when you are ready and have it delievered in 2weeks.deolaosu@yahoo.com or shopperscorner11@yahoo.com.