My semi-detached neighbour is planning to add a rear single storey flat roof extension 4m deep. He has asked if I would be fine to share a common extension wall which he will build at his cost astride our common boundary.
I plan to extend in future so I am thinking that this will be a good thing for me as we both get some extra space and I will have one wall and side foundation for "free" and almost certainly will get planning permission in future.
Is there anything I need to watch out for? Or is this never a good idea for any reason?
I had a long list of thoughts below. Would really be grateful for any feedback
- Is there any "legal" agreement we need to put in place so that I can exercise my right to use that wall for my extension in future and ensure that he cannot stick guttering or flues through it? Also to make good any damage to our current patio.
- Should the neighbour finish the wall and foundation in a way that I can attach mine to it easily? e.g. Add a small bit of foundation turning into my property with the rebars sticking out and perhaps leave some bricks/sockets at the end of the wall to attach my wall?
- Is it easy enough to join up flat roofs?
- If we ever decide to go beyond 4m (very unlikely as that will wipe out the garden), is there anything to be aware of?
- if we ever decided to build a double floor extension (again very unlikely) should we get the neighbour to put in appropriate foundations now?
I plan to extend in future so I am thinking that this will be a good thing for me as we both get some extra space and I will have one wall and side foundation for "free" and almost certainly will get planning permission in future.
Is there anything I need to watch out for? Or is this never a good idea for any reason?
I had a long list of thoughts below. Would really be grateful for any feedback
- Is there any "legal" agreement we need to put in place so that I can exercise my right to use that wall for my extension in future and ensure that he cannot stick guttering or flues through it? Also to make good any damage to our current patio.
- Should the neighbour finish the wall and foundation in a way that I can attach mine to it easily? e.g. Add a small bit of foundation turning into my property with the rebars sticking out and perhaps leave some bricks/sockets at the end of the wall to attach my wall?
- Is it easy enough to join up flat roofs?
- If we ever decide to go beyond 4m (very unlikely as that will wipe out the garden), is there anything to be aware of?
- if we ever decided to build a double floor extension (again very unlikely) should we get the neighbour to put in appropriate foundations now?