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