[The Great Fumar]

I don't think you can do all that without permission and they won't give you permission............Sounds like you should be looking at a courtyard villa.......You can remove grass and replace with stone and schrubs to create a no maint. home......Thats why many people who go back and forth buy courtyard villa's..........
I had one that I planted palms and water fountain in the yard and it was beautiful ...........only problem was my wife liked so well that she wanted to buy a bigger home and move their permanently....which we did and we love it.................