Are you driving to your ride destination then driving home? If so, give bike a wash on way home…if not, give it a wipe down to get excess mank off then give it a wash in your back garden.
Personally, I’d be washing it out front, water will run off to the drains and mud, once dried, can be sweeped away.
Assuming you take suitable security precautions on securing your bike, then will it matter how ‘prominent’ your house is? I’m guessing the washdown will take about 10 minutes so isn’t like you’ll have the bike on show for an afternoon…you wash off the mank then do the finishing stuff out of sight in the back garden…
Doing that will also reduce the amount of mank that is left in your back garden.