Sewer build over agreement

[spydie]

Would anyone know if we can start building work (digging of foundations at least) whilst one of these is processing?

Building control have flagged we are building within 3m of a shared/public drain. Builders are due on site after Easter and it's a 4 week turnaround on this latest 'issue'. Architect probably won't even get round to doing the paperwork this week as he's busy...

And £950 fee!?

950? Thames water were only 300 and I though I'd been mugged!
Tbh the architect said it's all definitely fine, they just like to rubber stamp it. The rules are very simple so you can just crack on.