I've used such a loop that was resonant on 80m and worked all bands relatively well.
But I had an apple tree in one corner of the back yard, another tree in the other
corner, and a push-up mast at one point, in addition to a couple 1x2s nailed to
the fence.
The first question is, what sorts of things would generally be expected or accepted in
yards? Bird houses or feeders on posts? A trellise for flowering vines? A gazebo of
some sort? Tiki torches? Area lighting? Security cameras? Sun shades for your
patio? A post marked in feet to measure snow depth? Frames for growing hops to
make your own beer? Palm trees? Tall plastic cactus? A tall post to keep a gate
from sagging?
And if the best you can do is run the wire along the top of a wood fence for most
of the distance, it is still worth trying.