i realy think you should contact a tree surgeon for the answer for your question

Have you thought about decking?, you don't have to dig round the tree, it can be supported by concrete blocks underneath and the tree will still get water through the cracks.

good thinkin doc yet again you got the answer my friend . i hope your well mate and enjoying the weather.

Well it's just a suggestion Leigh, I'm well thanks, thank you for asking. The weather has been a bit hot for me, but at least I've got a good suntan. Hope you're well.

ow you should get ya bikini out doc lol you take care mate its still better than ice lol .

How wonderful is this, to be able to ask for help! Thanks for replies - we don't want decking as it won't go with the house and garden - will contact a tree surgeon and re-think plans.

Regards
Lynn

You can go for a metal frame to suspend your patio on, this needs a small amount of supports and you save on a concrete base. I have seen a sponge rubber base used also which lasted many years until the house fell into developers hands.