As
Toph said: in WA, the council will have a neighbouring trees policy. There are steps to follow and its up to the complainant to prove, at their cost, that the tree is a problem and represents a danger to life or property. This is done via a report from an independent Arboriculturalist (not just your local tree lopping guy) Quoted $450 for the report. The Arboriculturalist report is unbiased to ownership and only states the issue and potential outcome. (ie Root lopping/barrier, tree removal etc)
To the OP: keep a log and write it all down. You're on the 'other side of the fence' to our situation so take heed at our outcome....
We are still going through this 9 months since discovering our neighbours tree wanted to be in our yard more than theirs.
www.seabreeze.com.au/forums/General-Discussion/Chat/Tree-ID/?page=1 Our neighbour has not even looked over the fence and refuses to acknowledge its their problem. She had been advised by another neighbour a few years beforehand - so she knew of the problem.
The tree (Gleditsia Sp) was cut down (at my and another affected neighbour expense as the tree owner refused to pay for it). We either paid for it and started repairs or go legal and drag it out (as she refused to attend mediation or anything else on the Councils neighbouring trees policy checklist)
Due to the tree type, it suckers even when roots are separated from the trunk. All poisoning did was kill the lawn - it still suckered from roots that had been poisoned.
The roots had to be removed - all of them. We found roots under paving under the main roof of the house 12m away from the tree - way outside the tree canopy area.
We have had movement in footings (cracked roof support columns) in one corner of the house.
Root barrier has been installed to 600mm. We cant get anything mechanical in to our yard so everything has been hand dug.
Retic, power and rainfall drainage had to be repaired or removed. (We have PVC drainage but the tradies didn't glue it together)
Existing paving had to be dug up and laid again.
The other affected neighbours have also had paving re-laid - due to their age they didn't opt to dig up the lawn and garden dug etc - they are now spraying the hundreds of suckers that are coming up.
Design decisions have been made around her refusal to do anything. We cant have any water or fertiliser enticing the several other trees under the fence, thus we now have a paved area instead of lawn and fake lawn going in.
There has been a massive number of hours my wife and I have spent doing the repairs (digging out the roots, which has been approx. 75m2 to a depth of 400mm - roughly 30 cubic meters or 48 ton that had to be moved multiple times by shovel!) To visualise 30 cubic meters of sand think 45 trailer loads from your local garden center.
Essentially we have had a worksite as a backyard for 9 months to get it back to being a usable back yard for our kids to run around in.
So far, it has cost over $6000 for repairs to our yard.
House insurance doesn't cover garden, so that's $6000 that we either suck it up OR now that the full extent is known, I sue the neighbour for.
Given she wouldn't stump up the $280 to get the tree removed at the start of the year - I can see that I'm going to end up in a legal quagmire.
She is already abusing me over the fence due to the noise from compactors and brick saws - she is gonna completely loose her ** when she gets the bill for this. Which will make for a relaxing neighbourly relationship.
Our back yard is now an albatross - I hate going out there as it just reminds me of how much money and most importantly; time with my kids that I have lost because a neighbour did nothing years ago and this all could have been avoided.
Note, I like trees; I liked the tree that was there before I found out what was going on underground. The lack of tree was the one thing my wife and I lamented when we bought our place 8 years ago, we live in a now "normal suburban block" where the houses takes up most of the block and our neighbours houses are never more than 5 meters away in any direction. The fences are all colourbond steel and do nothing to prevent roots travelling (like the old super6 did)
Massive trees have no place in this type of development. Its like keeping a horse in your backyard, you can do it when you have enough space around it for it to prosper and not annoy anyone else. Trees with massively invasive roots should be banned from being planted in these developments.
Not your tree type, but the
Gleditsia Sp is banned in QLD and NSW, it is on the WA Dept of Ag Harmful Plants list.
Long story short - engage with your neighbour - don't be a c**t and accept that with great trees comes great responsibility.