ᐅ Planning a Guest Bathroom in a New Build – What Is the Minimum Size? (Building Standards?)

Created on: 11 Dec 2022 12:59
T
T-i-m-m
Hello house building forum,

we are currently planning a semi-detached house. The building plot is very small, and the footprint is accordingly limited. To achieve a reasonably usable living area, we want to keep non-living spaces small and allocate the saved space to the living rooms.

On the ground floor, we are planning a guest toilet without a shower—that is, only a toilet and a washbasin. Recently, I have been carrying a laser measuring device when visiting friends and have measured several guest toilets. Conclusion: 1 meter (3.3 feet) in width and 2 meters (6.6 feet) in length are more than sufficient. In our case, the door would be on the short wall, the toilet opposite the door, and the washbasin on the long wall.

We are currently looking for a builder and have roughly presented our plans. One potential builder mentioned that according to the DIN standard, a guest toilet must be at least 1.24 meters (4 feet) wide.

My online research so far hasn’t been enough to find the relevant regulation or DIN. The DIN 18022 on bathroom planning appears to have been withdrawn without replacement.

Is anyone familiar with this requirement? Is it not allowed to plan a 1 meter (3.3 feet) wide guest toilet in a new build?
T
T-i-m-m
12 Dec 2022 08:12
The future dining table will definitely be extendable. For now, our current small kitchen table will be moved with us anyway. Life experience has shown that we spend 95% of the time with guests at the kitchen table and only 5% of the time in the living room. Therefore, it should be a large kitchen table. Folded for everyday use, extended when guests come over. It just needs to fit well and doesn’t have to look perfectly harmonious.

And hosting celebrations should not be a problem. It never was in my old 50 m² (540 sq ft) apartment and won’t be in the duplex house either. If a larger space is ever needed, there are actually many options in Hamburg that we have also used in the past.
i_b_n_a_n12 Dec 2022 08:14
T-i-m-m schrieb:

We had also asked for a technical basement. However, it was beyond our budget. Given the house dimensions, the price wasn’t that far off from a full basement. Inflation and global events have unfortunately made the project significantly more expensive than originally expected.

I don’t mean a basement! Just a single-story, “poorly insulated” annex directly attached to the house for the technical equipment. It is 3m deep (10 feet) and is located on our property line, so it doesn’t require any setback (a condition is no gas, no oil, no pellets). That’s how we solved it, and for us at least, it was the perfect solution. A basement is definitely much more expensive and complicated, especially regarding the (stair) access.
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T-i-m-m
12 Dec 2022 08:18
Ah, okay. We have considered something along those lines, yes. But more in the sense of keeping the utility room small and, if additional storage space is needed, attaching a minimally insulated storage area. But that’s a good point, I’ll take that into consideration again.
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WilderSueden
12 Dec 2022 09:03
motorradsilke schrieb:

How often does this happen?
Probably not very often when you are young. However, it can occur more frequently with age.
kati133712 Dec 2022 09:05
Malunga schrieb:

Looks great, how was the upper gray finish created? Is it plaster or wallpaper?

Regards
Thank you.
A painter did it for us. It is wallpaper with an effect paint applied over it, which has a slight texture in silver metallic.
M
motorradsilke
12 Dec 2022 09:25
WilderSueden schrieb:

As long as you are young, probably not. But it can happen as you get older.

Yes, of course, it can happen. It’s also possible that you are home alone and don’t get any help. The risk is significantly higher.
What I mean is, you cannot eliminate all dangers. If it works out, great. Then you can plan it that way. If not, I wouldn’t redesign the house because of it.