We have a similar problem with our strata plan ,,, we have recently had a fence come down in wind , between two lots , the Insurance Claim has been rejected, due to as they say many faults in it’s construction , Engineer has said the same thing , it is denoted on plan as a thick black line , other lines a thin , have been in contact with Strata , they say it is Common Property , they should have at least been looking at it to see if it was serviceable , I have ask they say there needs to be an approach made before they do inspections , the lot owner involved is on the EC I believe , what is the Strata responsibility in this matter , they will try and Levy the other Lot owners I would say and try and wash their hands of the matter