This makes sense because the project has a specific stop date (otherwise it is a process), so all tasks have to end sometime. A word of caution, you are still in the "planning" phase here. Do not get overwhelmed with the lack of details. Every home needs a frame before it can be built. But, before the frame is constructed there is a rough idea of the total square footage of the home, how many rooms, bathrooms, etc. that there will be. Thats what the planning phase if for...to determine how this thing should look.