How to cover a concrete staircase in the basement

Hello everyone,

we are currently waiting for our building permit and my thoughts are already waaay ahead...
We will have an untreated concrete staircase as the basement access, which will also be separated from the living areas by a door.
I want to use the basement to pursue my DIY ambitions.
As a floor covering for the basement, I would use a simple floor paint, it's easy, quick, and I don't care about the appearance in the basement since it's just a basic utility basement.
Now, about the stairs: our "supervisor" from the house company said that this would not be sufficient for the steps of the stairs and he would recommend tiling here. Not really a problem, but our staircase is half-turn, meaning I would really have to do a lot of cutting and work extremely carefully for slip resistance. I myself have only tiled a small piece of wall as a trial before, that went pretty well, but with a staircase, the edges and joint surfaces also have to be treated, right?

How have you solved this? As I said, it doesn't have to look super fancy, but I want to do it myself and it should be slip-resistant and not come off right away.
Do you have any other ideas that are preferably also not too expensive?

I am happy to take suggestions from you here.

Best regards
Tanita

I do not consider it sensible to attempt a staircase as a DIY project - staircases are too non-trivial (even if they are straight).

The covering also makes a difference in the evenness of walking on the staircase: if the thickness of the covering changes (between the finished floor on the ground floor and the top step and/or between the bottom step and the finished floor in the basement), then the height step at the relevant step(s) is somewhat different, which poses a tripping hazard.

Therefore, it is not recommended to vary the thickness of the covering within the "system" of these three reference points - nor to change your mind later.

Especially if you can see the upper end of the basement staircase from the ground floor (basement staircase without a door), I would extend the floor covering of the ground floor all the way down (to about 1 meter past the end of the staircase in the basement, and then use a "ramp" in the screed to smoothly reach the level where the top edge of the DIY floor is supposed to be.

Hello 11ant,
thank you very much for your answer!
The basement stairs are absolutely not visible, there is a door here and the stairs to the upper floor are closed.
I would also prefer to only have to paint the stairs, but that does not seem to be sufficient.
I am quite confident in laying the tiles evenly; I still need to report the covering thickness before constructing the stairs so that the covering thickness can be compensated. I don't need to worry about that here.
Best regards
Tanita

I would still proceed as described – such seemingly insignificant details also affect the resale or loan value. If a buyer were to retrofit a covering of a different thickness, the tripping hazard would arise again. Studded flooring, as often seen in school buildings, would also be a material alternative.

One can also plaster or paint/seal concrete stairs. Or buy them in a smooth formwork version and leave them as exposed concrete.