110mm Soil pipe to ensuite

[Murdoch]

planning any rodding points?

 

[s_workman]

planning any rodding points?

There is an inspection chamber just after the wye branch on the brown pipe. Would that be sufficient?

 

[Welder]

What worries me is the fall. At nearly 6m it's a long way.
Personally, I'd put a tee in for the WC and then reduce down to 50mm to outside to under the soffit. So long as it's not near an opening window that can be both vent and inlet.
Then you tee into the 50mm with a 40mm for the shower and 32mm for the basin - obvs all in solvent weld and properly supported under floor.
There would never be a problem then with traps