Dang trees block any aerial view, but I think I found a solid way to sneak 'em. I'll point out what I reference in here to keep the IC post cleaner.
The First View is immediately to the left, facing the front of the house. Notice how there is a bit of empty space there. Also note the tiny waist-high fence. Could play distraction and sneak around.
Or (P.S. you can use the mouse wheel to scroll out on these next 2 pictures... I just have them zoomed in so you can see where specifically I am talking about.)
Looking at
the second view, you'll notice how the back door is facing
away from the empty space shown in the first pic, instead of straight back into the backyard. This could mean there's a chance any guard there would be in front of that door and facing away as well.
Which takes me to
the third view, if we hop that fence (assuming we don't alert the home owner there) we could potentially sneak over to the backdoor and either quiet-kill the guard, or if no one is there, attempt to hack/pick the lock open for quiet entry.
~~~~~~~
Even if we didn't use any of the methods provided by Byte, Those are the 3 pictures I got of the place that aren't the original, which should provide the best view of the back you're going to find.
EDIT: I dunno how good my last IC post looks. It's a bit clunky, like how we discuss casing, then I snag the com... But, I just assume the pics gave us an idea of what to look for, and Byte gave his thoughts on what to look for in planning. From there, we can still recon and it should fit in fairly well, I think.