Designing an addition to your house can be a complex process that involves multiple steps.  First, you'll need to identify your goals and decide what type of space you want to create. By speaking with a project manager or general contractor early in the process, you can learn a lot of information about home addition building possibilities and the general process. These experts will know about zoning regulations in your area and will know the necessary steps required by your city before beginning any construction.  Next, you’ll want to discuss the layout of your addition with an architect or project manager who can help draw up plans for the new space.  Once you have your plan in place, you'll hire a project manager or general contractor, who can obtain permits, establish a schedule, and order materials. Designing a home addition is no small undertaking, but with careful planning and consideration, it can be a rewarding experience.