http://www.courts.sa.gov.au/courts/e...k_v_unley.html
This is a great example of opinions by experts on gum trees probability of limb failure. In a nut shell, worried resident wants gum tree gone as it "might" fail, but loses.
Lots of facts in here.
It's a long read but worth it. I applaud the SA govt regs and the way the building spec was laid down for the construction around the trees. Even had foundations changed for the trees benefit, it would be great if some-one could put up pics of the trees, the address is in the court document.
What I also like here is that it was mentioned in court that pruning and mitigation be carried out approx every 5 years @ $1500 which is considered most reasonable for retaining trees.
I also loaded a text only copy just in case the one on the net goes dead (has happened to me before)