How Much Do Custom Home Builders Charge

I Have Some acreage Where I want to build a custom home, approx 7 to 10,000 sq ft.If I choose a decent, reputed builder for the job, How Much Do You Think It Would Cost To Build Such A sincere home I Already Own The land?

Also, does it matter Where the House Is Being Built? The Land is expensive year in area, so I'm Concerned That Might thesis builders charge more due to That Fact.

Percs (allowded etc.) Have Already Been and financing Obtained.