Stay awake and alert while spending money on building a new home! Plan, Then Build - Have the details in place before you start building. That means not just knowing how the floor plan will look but knowing how the rooms will be finished. This process takes place before you sign final construction contract. Pick your finishes including cabinets, flooring, tile, windows, doors, etc. Hire the right people. Make sure you get all licensed contractors and professionals. Make sure they are properly insured.