Construction costs are currently skyrocketing

Would you lay a pipe to the sewer for a terrace roof or just let it run into the lawn?

We have about 20 sqm and currently just let it run into the lawn. It works, but will it stay that way? It was just too warm so far to install a drainage :)

We will be able to go onto the terrace without a step, therefore there is already a branch for the ACO channel at the house that runs into the cistern... Then I'll put a pipe out to the front.

You

...a branch for ACO channel that runs into the cistern...

You let "groundwater" run into the cistern?

Would you lay a pipe to the sewer for a terrace roof or just let it run into the lawn?

Originally, I wanted to direct it into a rain garden. However, due to the terrain modeling, we ended up a bit higher than planned, so the rain garden is off. Now the plan is to connect it to the cistern.

Which water is that? Rainwater directly from the roof or water that accumulates in the ground? When I think about what I pumped out of the cistern after three years of rainwater without a single leaf in it, just dust, the amount of sediment was respectable.

If her cash runs out, she would have to sell the cabin first before she gets something like Hartz 4 from the state. I think that's somehow harsh.

I think that's absolutely right. Help is given to those who actually need it. Anyone who still owns a property worth 200k doesn't need help but counts as the upper half. Why should the state step in there? It doesn't do that in Germany either. Then nothing is inherited and you move into a rental apartment, so what. Still better than being dependent on social benefits.