A good friend of ours bought a semi in Watford with such a big back garden that he was able to build a nine car garage/workshop, making the existing garage a drive through. Sadly he died young from Type A diabetes, but a lovely bloke and utter car nut.
Over the road there is a house with a double garage, two car spaces on the drive, and one of the garages is drive through to a hard standing at the rear. That row of houses also have excessively long gardens by todays standards.
I have plenty of off road space with a double garage but it's all very narrow and tight.