Building Within 1.0m Offset Of The Easement Question

We are building in Berwick and have 3-meter easement at the rear of our block. We knew that we can't construct over the 3-metre easement. So we planned to have a room at the rear of our house 510mm away from the easement. Now when our plan is finalised, our builder sent us an agreement form from Casey council that states if we build over the easement or even within 1.0m offset of the Council asset, these terms will be applicable. I am adding our house plan that shows our building is 510mm away from the easement and 1050mm away from the stormwater pipe under it. I am also adding the agreement screenshot. Can anyone please guide if 1m offset means the distance from the 3m easement area or the stormwater pipe? Because agreement says "1m offset from council asset". So I am assuming the pipe as council asset? Should we worry about this agreement or how risky it is? Or if it is even applicable to us as our wall is 1050mm away from the easement pipe?

I believe 1.0m offset from council asset means setback from the stormwater pipe which council owns. I would suggest you ring City of Casey and talk to someone from engineering who should be able to clarify.

Do you have to build that close to easement? I would prefer to leave more room in case in future Council needs to excavate around stormwater pipe; I would be uncomfortable with excavation too close to house.