Your cost will vary of course by where you live, I m not sure about the New Jersey market. One thing to take into consideration is that material cost are at about a 10 year high. The cost of wood is severely inflated as of right now. Interest rates are still low enough right now that you may be able to offset the extra material costs. This is where your local area market values will become vital. In most cases you will have to own your land in order to get the loan to build the house. So, there are many factors that to think about before building. I would check out the State Comptrollers Office web page. You can pull all the tax cards for houses and land you may be looking at. This will give you the amount the state has appraised the property for tax purposes. This is generally about 20% below market value. HAPPY HUNTING!!