The beauty of having a plan is that you know where the project is going. Even if it takes years to get there, all of your work and expense will be taking you in the right direction. Savor the pleasure of this accomplishment and carry it with you as you build your dream landscape.
Review all your preliminary designs, pulling from each the components you like most and compromising if necessary. Make the final plan as accurate as possible. It will be the guide to determining costs. Make copies to give to the contractors you hire to do the work.
Finally, ask yourself: Have I resolved the existing problems? Does the plan meet building codes and easement restrictions? Have I provided for the use and pleasure of everyone in the family? Does the plan suit our lifestyle and our home's style? Is the plan realistic in terms of the time and cost needed to implement it? Will the landscape be pleasing, accessible, and safe year-round?
At this stage you don't have to be too specific about plant types, structure design, or materials. Employees at home and garden centers can help you make final choices.