Congrats on the new Like!
Myself, I live in a garden home / townhouse with a communal parking lot which I do not use. Every night I wheel my girl to the backyard. We have ground level patio stones so its nice and stable.
The week before I bought the bike I installed a 4 camera surveillance system. They are infrared with amazing night vision. They also have a motion sensor alarm that wakes me up once in a while when an animal scurries around back there (also a spider once that was building a web near the lens.)
If you've ever seen infrared cameras at night you know how intimidating they can look. Every inch of my property is covered and the cameras cover each other as well and have a tamper alarm anyway.
Needless to say I have not had any issues so far, aside from the neighborhood beasts and bugs!
If you live in a single detached I bet the backyard with a good lock is enough....if you live in the states you could also put up a big warning sign about tresspassers being shot ...