Hi.
I have a single storey extension that was built before I bought my house. It is probably 30 years old and there is no record of it at the council.
I would like to build on top of it and I understand that I might need stronger foundations.
However, before I set out digging inspection holes and so forth, I was wondering if someone could tell me exactly what would be involved in strengthening the foundations? Is underpinning the only option (for example could you build columns outside the existing extension and build the upper storey on those?
Thanks,
Carl
I have a single storey extension that was built before I bought my house. It is probably 30 years old and there is no record of it at the council.
I would like to build on top of it and I understand that I might need stronger foundations.
However, before I set out digging inspection holes and so forth, I was wondering if someone could tell me exactly what would be involved in strengthening the foundations? Is underpinning the only option (for example could you build columns outside the existing extension and build the upper storey on those?
Thanks,
Carl