Before deciding to build a custom home it is critical to do a lot of research. You will need to understand any building regulations or zoning criteria for the area, as well as research exactly what you want In your home. The internet offers lots of opportunity to look around at options available, but remember not all may work in your area.
Don't expect your custom home builder to be a mind reader. Often a custom home builder will only work on a few homes at a time, so they have the opportunity to really get to know what you want. The more specific you can be with them, the more exactly they can match your needs with regards to your custom designed home.