City villa - Your opinion on the floor plan

Good evening,

The building authority has given the green light.

What, please, does this mean concretely? How are you allowed to build and how should the connection to the existing property be handled? In your example, you have already built over, and you will certainly not receive approval for that.

Rhenish greetings

We have a quarter-turn staircase and it is 3.75m long with a floor-to-floor height of 2.60m. So from the finished floor to the ceiling top edge. Maybe as a reference.

What ceiling height do you have then? So from the top edge of the floor to the bottom edge of the ceiling?

2.46m

Is your ceiling between the ground floor and the upper floor only 14 cm thick?

16cm. I looked at the plans again. 2.62m is the story height.

No sorry. 16cm is the floor construction. The ceiling is 22cm. So the story height is 2.84m, right?

You have a story height of 3 m. That's quite decent, but it also means you need a proper staircase.