Without your consent, the scaffolding erected by your neighbour is trespass.
Your neighbour should have obtained your consent.
However, if you did not consent your neighbour may have been able to get a court order to erect the scaffolding under the access to neighbouring land act.
However the court order would have specified conditions in respect of the scaffolding.
Now the scaffolding represents a trespass.
If your neighbour refuses to remove within a reasonable time, evict it has done, you csn apply to court for an order/injunction fir it to be removed forthwith. As part of your application to court you can claim your costs/expenses incurred but there is no guarantee that you will be awarded costs.
Any questions or queries?
Happy to assist further.
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Sorry, that part went wrong. Think the predicted text took over.
What I was trying to say is that your neighbour has not removed the scaffolding within a reasonable time so therefore you can apply to the court.
Do you have any further questions or queries?
Please can I remind you to accept /positive rate my reply otherwise the website will not pay me for assisting you. Many thanks.