Chimney stack removal

[Spider3]

Hi everyone, I live in a terraced house 1930's and my neighbour has recently just started a loft conversion and is all going well and has kept me well informed, This where the issues start, she has asked the builders to render the chimney stack but builders have told her the stack is in a bad way and not worth repairing and is cheaper to take the stack away, she has scaffolding up already and neighbour has agreed 2 pay for it, do we need planning?, she also has building inspector and she has told me that she will make sure that the work will be carried out properly, my main worry is do we need to sign any kind of agreement for future reference incase any questions are asked if I sell or have a major fall out,God forbid the roof leaks and I have a flood and will insurance company need to see proof of work?, I do not want to see the wool pulled over my eyes and would appreciate any response ,thanks

 

[tony1851]

Unless it's a listed building, you would not need planning permission to drop the chimney.
Before starting work, the neighbour should have applied the provisions of the Party Wall Act, but if that has not been done, it does not absovle her of her responsibilities.
I'm sure other forum members will elaborate on this for you.