Just to bring up this topic again, the creaking has become more persistent over the last few months. It happens every time on my driveway without fail as mentioned above but also does it on uneven road surfaces or occasional minor pot holes and speed bumps. It's definitely noticeable even to SWMBO who previously said she couldn't hear it.
So off it went to Skoda last week and surprise surprise they couldn't find anything. They acknowledged the creak on an audio recording I'd emailed them when I placed my phone in the footwell but it didn't make any difference to their findings and any suggestion of known issues from reading online forums was dismissed immediately.
It was absolutely tipping it down with rain on the day which would hamper their efforts they said. In any case, the mechanic fetched the wheel off and did a thorough check but no issues.
Yet there clearly is an issue somewhere as it still persists!