Runaway ball (planning)
The front and back yards were designed separately a few years apart and married together when the 2nd phase was complete.
Creating a patio that will be level with the grass made more sense to create a better flow in the yard. Some old tired shrubs were removed and prairie hardy plantings used to add some serious curb appeal.
The contractor did some major grading to bring the slope up and thus allow for a very level playing field when it came to the grass.