Entrance stairs part of foundation construction?

[Frekvenz]

We have received notice from our KA that an entrance stair should be considered part of the foundational structure and should be founded frost-free and on undisturbed ground. According to him, the foundations should have been cast at the excavation bottom, and the piers should have been cast when the basement walls were being built and before backfilling, which was not done. Now it is backfilled and difficult to remedy. The stairs we intend to build are simple wooden stairs, and we had planned to cast piers with casting tubes. There are no specific drawings in the building permit documents for the stairs, only façade drawings. We will receive a remark from our KA on this, which we find a bit strange. Could this be correct?

 

[Testarn]

That sounds very strange. As long as the staircase is not a cast staircase anchored to the foundation so that it can affect the foundation wall, it should be considered freestanding and not part of the foundation construction.
A wooden staircase won't be able to tear down the wall if it sinks, even if you set some anchoring points at each end.

We have an assembled Lecamur on a slab, about 2 meters high, with 60 cm above ground for our new entrance. We will also initially build a wooden staircase and maybe in a few years pour another one. Our KA, our engineer, and the municipality's inspector/building engineer (of the meticulous kind) have all said that it's a perfectly OK solution.

If I were you, I'd ask your KA to show some regulation stating that the staircase is part of the foundation construction. In the drawing, it doesn’t appear to be founded together with the rest of the house but stands on piles (which should themselves be dug down to frost-free depth).

 

[Frekvenz]

That sounds very strange. As long as the stairs are not concrete stairs that are anchored into the foundation so they can affect the foundation wall, they should be considered freestanding and not part of the foundation construction.

A wooden staircase will not be able to tear down the wall if it sinks, even if you set some anchor point at each end.

We have a laid block wall on a slab, about 2m high, with 60 cm above ground for our new entrance. We will also initially build a wooden stair and maybe in a few years pour another one. Our supervisor, our constructor, and the municipality’s inspector/building engineer (of the more thorough kind) have all said that it is a completely OK solution.

If I were you, I would ask your supervisor to show some rule that says the stairs are part of the foundation construction. On the drawing, it doesn’t look like it was laid out with the rest of the house but stands on piers (which in themselves should be dug down to a frost-free depth)

Thanks for the detailed response.
I will check with the supervisor.
Yes, the intention was for there to be piers.