Posted: 25/07/2016 at 10:23
That little bit of grass at the end of the deck looks a likely candidate for removal. You might then be able to add a few climbers along the wall (behind your seating/dining area at the other end) Something like a Clematis montana for instance, which will cover a good distance, and it'll grow towards that sunny end quite readily. You could add a simple pergola to give you a bit more privacy from the adjacent housing - you seem a bit overlooked in that area. You could then take out the extra 'matching' rectangle across the path and create something there. I'm assuming you look out on to that area from your house, so some structure for during winter could be good. The garage wall could have climbers too - a border along there would be straightforward to do. If you're overlooked down the other (left hand) side, you may want a couple of large shrubs or small trees for privacy. Making the grass circular or oval is a simple way of creating borders too.
It depends how much grass you want to remove for planting into, and that's dependent on how much time you have to spend on maintenance, and also on aspect and what you use the garden for, as KT53 says. Budget is always a factor too.
It's hard to be more specific until you give a little more info . Your likes in terms of style and colour etc will help with planting suggestions