2. Don't build too big. The first step that most churches take when they begin to outgrow their present facilities is to go to multiple services. That's a wise choice from a stewardship perspective (making the most out of what you have) and it gives people in the community more options when deciding on whether or not to attend your church.
However, when it comes to building a building, it's a huge mistake to build so big that you can house everyone in one service and at one time. You will unintentionally remove the flexibility you have for multiple service options and you also run the risk of overextending the budget with a larger mortgage. So, build smaller with the intent for multiple services and maximize ministry dollars with a lower mortgage.