An outdoor room is like any other room. First decide what you want to use it for. For example, my back yard has a couple of rooms. The "dining room" is a table and 4 chairs under an inexpensive ($150) 12 ' X 12' Home Depot gazebo . The gazebo gives a pleasant feeling of enclosure and privacy when we sit at the table, and it also keeps the table clean and dry. We have a big hydrangea shrub right at the edge of this area to mark its edge. It's pleasant to sit so close to something blooming. The "living room" is 2 comfortable chairs and a love seat around a coffee table. We entertain there and pull the dining room chairs over if there are more than 4 of us. We also sit there to read in the evening. There's a smallish tree right beside it so it's pleasantly shady. The "kitchen" is the grill and a small table to set things on, and is closest to the kitchen door. Once you have decided how you want to use the space, you'll need to decide whether you want a new "floor". We have a low L-shaped deck that has the three rooms. Or you may decide on a concrete or slab patio for all or part of it. Farther from the house is some grass, and then more big shrubs (evergreen and blooming - little maintenance). And a little raspberry patch because it's fun to eat them right from the bush. The landscaping really comes last, once you have decided on the functions of the area. Don't start planting without a room plan. You may want, for example, to put one of your rooms right against the fence or wall, and if you've already planted shrubs or made beds then they will be in the way. You want to plant trees and larger shrubs so they are useful as the walls and roof of your rooms. Be sure to check the mature size of your plantings (it's on the tags) so you don't end up with branches hanging over your roof or over your neighbor's property. Don't make the mistake of putting in so many beds or plantings that you don't have time to sit and enjoy. A few low-maintenance shrubs that are planted close to where you sit are just as enjoyable as big swaths of flower beds that need weeding, annual bedding plants and maintenance (unless gardening is a hobby that you enjoy spending time at.) Enjoy your new home!

I think it is outdated too.. But some people love the strip. I just planned my showers and had no strips. Instead I did a tile change half up the wall (tile chair rail between) and in my master did this picture frame look (pic below)

This made me laugh: http://www.theguardian.com/environment/2016/jun/09/seagull-turns-orange-after-falling-into-vat-of-chicken-tikka-masala I couldn't copy the picture, but it's hilarious.

Well that is an interesting picture. I can assure you that hanging wall gardens are all the rage and that is a great idea but they can also be high maintenance if exposed to high winds / sunshine etc. I have seen some lovely fake ones that would do just as well. You could also have a few pots with additional greenery. As you say your view is not "great" maybe you can have a creeper in one of the pots that can weave its way through the railing. I probably wouldn't go for one big chair as it could dominate the entire space. I would consider a table with a couple of fold-able chairs .... something that is comfortable, inviting if you have friends over but can be placed in a corner if you just want to open up the space. I do not think you need a carpet and but maybe some fancy outdoor tiles will look just as nice. You want it to be easy care and weather proof. Do you need or wish to incorporate a washing line? A pull out one from a wall will be perfect that way you can retract it back when you are not using it. If you deck gets too much sun, you may want to consider some shade shutters. I have seen them called 'plantation' shutters. GOOD LUCK