Jeff, other than demolition costs, the approximate cost to build, or rebuild your home can be determined using construction estimating software. You simply answer a few questions as the quality of the home and the design of the home, enter your state and zip code. It's fast, it's easy and it's free!
Also, learn more about cost estimating. This article is designed for people who have never built a home before. http://www.byoh.com/costestimating.htm