ᐅ Single-Family Home – Floor Plan Bathroom – Master Bathroom

Created on: 8 Mar 2026 15:26
V
VielleichtBau
Hello,

We are planning to build a single-family house and the bathroom layout is causing us some headaches.
Number of people: 2 adults + 1 child (possibly 2 children in the future)
The shell dimensions of the bathroom on the upper floor are currently: 3.48 m x 3.66 m (11 ft 5 in x 12 ft)
The door is fixed. The window position is still flexible and can be adjusted.

We have currently created the following three designs.
One T-shaped solution and two other variants.

Personally, I prefer Variant 1. My partner prefers Variant 2.

Maybe you can provide feedback or have better ideas.

Requirements:
* Washbasin at least 120 cm (47 inches) wide
* Walk-in shower at least 90 cm (35 inches) wide (shower glass door will be installed)
* Ideally, the toilet should not be directly visible

The sanitary fixtures and furniture are only schematic.

Thanks a lot!

T-shaped solution



Variant 1



Variant 2

11ant12 Mar 2026 14:10
VielleichtBau schrieb:
Therefore, all solutions that simply install the sanitary fixtures continuously along the walls are ruled out. [...] With this solution, the bathtub must be rounded; otherwise, the entrance would become too narrow.
Hopefully, readers will take this as a warning about how you, after your flawed approach, are just going around in circles on the spot. Clearly, the root of the problem is having treated the bathroom so far as a black box placeholder in a corner of the floor plan with a randomly given size, and now wanting to "sensibly divide" its area "at almost the last minute" and retrospectively. The fundamental decision between an "L" or "T" shape instead of a "ring" layout should have been made much earlier—and not in a way that the client tries to inject intelligence "on the construction side" into the resulting chaos.

Your approaches are, unfortunately, neither effective nor practical, or even both: #1 You draw a fictional object in the form of a corner bathtub scaled to the available space, which will not be offered by the sanitary industry as a standard item in quantity one; #2 the total thickness of your installation walls is in no way plausible; #3 you do not show any water supply or drainage pipes anywhere (although we know you want to place the floor penetrations for the soil pipes in one of the two upper corners of the room, which is not nearly enough as a working instruction for advisors). Consequently, the planners and builders involved will face tough challenges (this concerns the draftsman for the working drawings) or be forced as craftsmen to improvise, which will result in the ugliest drywall defects.

The price you will pay for, second, your stubbornness in not allowing yourself to be guided by the dice that have already been cast during the ideation phase, and first, for not seeking timely help to actively prevent the situation from deteriorating, will be high and well deserved.

Lessons for the readers should be:
# never ever, under no circumstances, arrange a (main) bathroom as a black box placeholder leftover corner
# principle requirements, such as privacy for simultaneous multi-use, must absolutely be included in the planning specifications
# a house is a complex three-dimensional system with multiple levels that need to be coordinated
# advisors who are asked to think along require comprehensive knowledge of the framework conditions and early involvement.

Based on the described usage and also your thread history, I cannot see anything "special" about the household that could not have been served by one of the many proven standard catalog house designs for ordinary families, which would have avoided this universal headache caused by an individual custom design. Especially the range of standard villas in the size range of 140 to 160 sqm (square meters) (1500 to 1700 sq ft) is practically an overflowing cornucopia, hardly imaginable as more abundant. Were there any deal-breakers here, like trying to squeeze in an additional room or trying to downscale a 160 sqm (1700 sq ft) standard villa design to the 140 sqm (1500 sq ft) size, which created the problem in the first place?

At least in the approximate corner location of the entrance door, all "L or T, at least not ring" bathroom options with an "oh, the exact layout can be postponed" attitude require a minimum size of 15 sqm (160 sq ft)—each one hundredth less leads to bruising tight spots or restricting the room usage to contortionists. Even the authors of the most careless standard villa proposals know and observe this. Only those who reduce figures arbitrarily aim for a layperson’s individual design here.

For the original poster, I see only the choice between "pulling the emergency brake and reversing planning steps" or "accepting a ring bath for this size after all." No proposal has emerged here (largely due to the OP’s secrecy, but not only because of that) that would have been majority-approved as even "good" by the group of experienced advisors. A certain degree of mismatch between wish and reality cannot really be corrected. Imagining a one-of-a-kind corner bathtub is no real solution, and "wireless (waste) water" has yet to be invented.
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H
hanghaus2023
14 Mar 2026 07:46
VielleichtBau schrieb:
If anyone has a useful suggestion for the floor plan here, please feel free to share.

Then please tell me what you don’t like about my proposal.
Y
ypg
14 Mar 2026 09:50
hanghaus2023 schrieb:
Then tell me what you don’t like about my suggestion.
Or mine 😉