ᐅ Staircase Planning for Basement Stairs

Hello everyone,

We are currently looking for a suitable basement staircase for the (very small) self-contained apartment in our house. The stairwell opening measures 145 x 145 cm (57 x 57 inches), and the floor-to-ceiling height is about 246 cm (97 inches). A 140 cm (55 inch) spiral staircase would actually fit well in this space. However, I am concerned that such a staircase might not meet the fire protection requirements. As far as I understand, a basement room must have a "necessary staircase," so the widths, depths, etc. of the steps must comply with certain standards.

There is the option that the escape route from the self-contained apartment leads through the main apartment, where a proper staircase is already installed. The self-contained apartment already has a door to a basement room of the main apartment, which we intended to keep locked. If we leave this door open and, for example, equip it with a door closer, would that hopefully be sufficient?

Or is there another way to install a sufficiently sized staircase in the ceiling opening? I assume that a light well does not provide a proper emergency exit, does it?

I have attached two excerpts from the floor plans of the self-contained apartment on the ground floor and basement.

Thank you very much for your support!

Measure that again. In the plan, it is 2 m by 2 m (6.6 ft by 6.6 ft).

Why don’t you ask the designer who created the plan?

4 minutes???

In the basement, you have a window located directly beneath the terrace.

julian113 schrieb:

I have attached two excerpts from the floor plans of the granny flat on the ground floor and basement.

... and I (with four decades of experience reading floor plans) understand N-O-T-H-I-N-G!
Boldly, I suspect a causal connection here, because non-experts often omit the unfortunately only seemingly irrelevant contextual integration into the overall problem when looking at excerpts. What on earth makes someone decide to place a storage room for a (located on the ground floor?) granny flat in the basement and then size it in such a way that its classification as a non-habitable room becomes questionable and requires the corresponding emergency escape route???

Just remove the staircase and give the granny flat a storage room equivalent in size to the area taken up by the staircase. Some things are really incredibly simple (until someone invents a problem). Are you an engineer (or political consultant)?

---

https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/

I don’t understand either. So, on which floor is the so-called granny flat located? And doesn’t a granny flat have to be at least 30 sqm (323 sq ft)?

hanghaus2023 schrieb:

Measure it again. The plan shows 2*2 m (6.5*6.5 ft).

Why don’t you ask the planner about this?

Thank you very much for your replies. I will, of course, call the planner tomorrow. Basically, a lot seems to have gone wrong during the planning stage, and we’re not happy about some things, although unfortunately, we may only be able to change them partially at this point.

The opening for the staircase between the ground floor and the basement is definitely 1.45*1.45 m (4.75*4.75 ft) in size. Where the window with the light well beneath the terrace in the basement is shown on the plan, we still don’t know if there will actually be a terrace there someday.

My main question is what options we have to install a staircase in a 1.45*1.45 m (4.75*4.75 ft) opening and whether it will meet fire protection requirements. The staircase in question is drawn in the bottom right as a spiral staircase, so it is enclosed by exterior walls on two sides. Attached is a photo of the mentioned opening.