I would cut off about 1/4 of the leaves, starting with the oldest ones, to put less strain on the roots. A dose of dilute seaweed extract would also help.

And stand it out of the sun if possible in the meantime - it'll be less stressed in the shade, especially while its so hot.

Thanks
I removed a quarter of the leaves. tomorrow I will feed with seaweed extract..
I also had the umbrella over it for shade

If it's not too late, don't give it the seaweed feed - its already got nutrients from the John Innes and the growmore you added - giving more won't be helpful and may be damaging, especially as, having been dug up, the roots need time to regenerate and recover so they won't be transporting nutrients anyway. Just keep it out of the sun and water as necessary.

Thank you.
Do you have any idea of time it takes for the roots / plant to recover after the transplant?
I have a south facing garden so theres not much shade. Im using the parasol to shade it.

How long would it take till Im out of the woods? So far the plant looks healthy. Not seen any wilting or discolour of the leaves.

See what it looks like by the time 4 weeks has gone by... any major issues will be obvious by then. How well it copes is largely down to how easy it was to dig out without destroying too many roots...

It was fairly easy to dig out. I was most surprised by this. TBH, I did not see any damage to the roots. There were a couple of small rhizomes at the base which were fairly close to the trunk. Never saw a long tap root. There were some fibrous roots.
I basically dug the soil out around the base. It started moving and then I slowly let it lay on its side and cleared more soil around the roots then I just lifted it out the hole.

I doubt there was more than 30cm of roots around the base.

That;s not unusual - they don't have a massive root system and rarely, if ever, cause problems with house foundations or pipework. There's a few properties near me with Cordylines up to 13 feet tall growing within a foot of a house wall with no problems...