Consider some of these friendly design tips for the best Chicken Coop in the neighborhood.
Without the right design features, you may be disappointed.
These do not cost anything to consider now, for a design idea, but they sure can cost you later, when you drop the eggs in the morning! Design Feature -Tips for a friendly Chicken Coop: 1/2 dozen free ones:

1. Automatic door, helps when your hands are full.
   
2. Electrical hookup - You may need an outlet for an electric blower for maintenance time.
   
3. Lights - Most cases picking eggs is before sunrise, get some lights into your design, now.
   
4. Door size- One for picking eggs.
   One to access for cleaning, moving chickens, and more.
   
5. Wheels for portability - Skids work well to, but must make a coop movable in some method that works.
   
6. Roof material - Consider the seasons, weight of snow, sun-heat, an proper vents required.
   Temp.
   is important.
   

These will get you thinking, however, the best design for functionality is thinking your routine through, by steps, this will stir up some more ideas, that will payoff later.
Think about walking out in the snow in the morning, for some breakfast eggs.
Step one, did you remember a small basket for more than a handful? Just a simple example, leave a few small empty baskets in a close reach to your coop, so you are ready, no headache, running back to the house, especially in the snow! There, now got you thinking, there is more to consider.