And the question is...?

The cost /sf of building new residence.???

I think Sophie's analogy of cost/sf being like asking what a car costs on a /lb basis is a good one. The number has no real meaning. Design a plan, get bids.

Anywhere between $97 per square foot and $398 per square foot, approximately. The more detail you add the smaller the range becomes.

Construction cost is dependent upon many things including complexity of design, materials, geographic location, builder, among many other factors.

You could call an architect a craftsman...

(Ibrahim, if you need advice, we need information and the question)