To build your dream house, think about details you liked or disliked in past houses to give you a starting point, then decide what features you most want in your dream house, such as the number of floors, bedrooms and bathrooms, and any special features, such as a porch or bay window. Once you have a general idea, find a floorplan that fits all of your goals, from a website such as ePlans.com.
Your lot size determines what you are allowed to build, so if you already own your lot, determine what restrictions and covenants apply, especially size. EPlan and other floorplan websites allow you to search based on the features you choose, such as the number of bedrooms, bathrooms and garage bays, as well as the square footage and the style of house you want.
For each floorplan you like, imagine walking through the house, performing your daily activities, and whether the layout of the rooms works for everything you need. For instance, if you entertain guests, imagine them walking around the living area and kitchen, or if you have children, imagine where they will play while you cook or work. Hire an architect to make any changes you need in the final floorplan. Then hire a contractor, find funding at a bank or credit union, and pick out appliances.