Take out the grass, put in a swimming pool and path to the house. Little patio (existing) gets a pagoda roof and stone wall around it; bowls as water feature, if space for some grass on the edge, why not
Plan 77619FB: 4 Bed Northwest House Plan with Bonus Room
More in our budget, although with the house we have an offer on, we plan to wrap the deck around and replace the small wooden deck that is in place to enter the kitchen door. Hopefully a screened in porch might be an option down the road, but to start, this is what we plan....with a gate, so we can let the fat cats out to lounge.