Residential Costs Per Square Foot In NC

OK- I know this is probably a VERY tall order, but it never hurts to ask.......

I am interested in contracting for the construction of a 900sq ft cottage on a tract of property I recently inherited in the central piedmont area of NC (I believe the nearest township is Richfield or Gold Hill). Does anyone here know where on the web I can secure a reasonable estimate of the current costs-per-square-foot for new construction in this particular area?