Stop separating the outside of your property from the inside of your house, try to think of your home as all one place. Look at your outdoor space, look at your yard and take inventory of the things you have naturally in that space. What has mother nature already provided for you? Hopefully you will have some kind of natural elements that can be the focal point of the new outdoor family room such as a large tree, a hedgerow, a great slope, or a beautiful view. There could be other qualities you can start with, such as a lovely angle of morning sun, maybe a nice brick wall using one side creating a microclimate, or even an interesting urban view of some kind, though in urban locations, your yard might be a barren rectangle, with nothing in it however, some weeds and dirt.