Johnjames32

Thanks all. You'll have to forgive the terrible drawings as I've just done it on my phone on paint, but you can see the manhole (neighbours property) and where the existing drainage runs through out footings

Good evening all. Having recently started our 2 storey side extension and single rear, weve hit a bit of a snag..... sewer drains. Having spoken with Seven Trent before work commenced our utilities provider as well as the local council (neighbours had an extension fairly recently), neither had any records of any existing drain/sewer runs across the back of the houses. We has dug our footings to just over 1m below ground level as advised by the architect. Building inspector visited the property yesterday and advised to dig about 150mm lower at the rear to achieve sandier ground conditions (similar to that of the side). In doing so, we've discovered what looks like an existing sewer main.... What would people advise? Currently the single story (where the trench and subsequent sewer run is located) is only half the width of the house..... could we divert and put x4 90° angles and redirect the sewer (2 at the start and 2 at the end of the run)... I understand we would need permission from Severn trent but this seems the most logical approach? It would mean digging a new trench running parallel to the existing?! Would welcome advice please..... https://ibb.co/ZdwPs23