I will be doing a similar thing out my back door (which faces north). Right next to the porch on each side of the walk, I have huge rhododendrons, but past them, on either side of a sidewalk that leads to the driveway, there was only grass. It was always very lush because that area holds moisture, but it was a pain to mow. It is now covered in cardboard and then woodchips on top of that. It didn't have enough time to break down the grass below, so I'm letting it just be as is this season.
Next year, it is my intention to make it an herb and flower (pollinator) garden. I will grow things that are easy to maintain and that I will need on a regular basis. This is where I will grow my basil, instead of taking up room in the vegetable garden. I grow it as a crop from which I harvest almost weekly and make large batches of pesto to then freeze for easy winter meals. Maybe some sorrel for a nice spring soup? I plan to plant dill so that when I'm canning, I will have plenty, although, again, right now, it's taking up space in the veg. garden. I love tarragon and chives, and since I now pretty much concentrate my efforts in the permaculture fruit and nut realm, it will be nice to have some flowers nearby to help feed and draw in good insects as well as for color and fragrance--having some allysum near the walkway, for example, would provide a lovely fragrance. Borage has that startling beautiful blue flower, while catmint blooms all season long. Some pretty medicinals will also be planted in the new garden, so that they are closer. I might even transplant some wine cap mushroom spore. I guess the idea of planting in layers is deeply ingrained in me! This is my view out my kitchen window over the sink, so I don't want it too wild, but I do want it full--full of color, usefulness, fragrance, life and useability. I do have a bird bath already there, which is visited by birds on a daily basis. It gives me a little thrill every time a bird chooses to grace me with its presence. I guess they feel safe because they can very easily retreat to the rhododendrons from which I hear chirping all the year round!