Contemplating a rear extension, which I knew would involve building over a sewer, but I wasn't overly concerned about that because I knew that could be done.
I was pretty sure that it would not entail building over an inspection chamber.
Having looked on the ground to see where the walls would actually be, I found it would be a close thing - they would almost, but not quite, go over the manhole cover.
But then I thought - uh-oh, what about the fact that the footings will be wider than the wall. And I wondered how large the inspection chamber actually was, so I lifted the cover to take a look.
To my dismay, I found that it was larger than the cover - it extends about 30cm on one side:
This is where the walls and footings would be:
Is this remotely do-able? Or are my only options going to be to change the design so that the walls are further away (i.e. make the extension smaller ) or to "move" the inspection chamber?
I was pretty sure that it would not entail building over an inspection chamber.
Having looked on the ground to see where the walls would actually be, I found it would be a close thing - they would almost, but not quite, go over the manhole cover.
But then I thought - uh-oh, what about the fact that the footings will be wider than the wall. And I wondered how large the inspection chamber actually was, so I lifted the cover to take a look.
To my dismay, I found that it was larger than the cover - it extends about 30cm on one side:
This is where the walls and footings would be:
Is this remotely do-able? Or are my only options going to be to change the design so that the walls are further away (i.e. make the extension smaller ) or to "move" the inspection chamber?