ᐅ Planning a 12 sqm Bathroom for a New Build Upstairs – Error Analysis, Improvement Suggestions, and More

Hello everyone,

after reading a lot, this is my first post here, so if I forgot any important information, please just let me know.

We are currently in the planning phase for our new build. The main bathroom on the upper floor will be about 2.8m x 4.5m (9.2 ft x 14.8 ft). It will include a double vanity (about 1.60m / 5.2 ft), a bathtub, a masonry-built walk-in shower, and a toilet. The two windows are fixed, with a sill height of 90cm (35 inches), but the door can still be moved freely. The exterior walls are 50cm (20 inches) unfilled brick.

After some trial and error, this is currently our preferred layout. The square in the upper left represents the laundry chute, and the two rectangles on the right are cabinets. The gap between the shower tray (120cm x 100cm / 47 inches x 39 inches) symbolizes a 35cm (14 inches) deep bench seat. The toilet has 28cm (11 inches) clearance on both sides, and the passage to the shower is 75cm (30 inches).

Below this room are the utility room and the guest bathroom.

We are looking for suggestions, shared experiences, improvement ideas, and most importantly, error detection! Thanks for sharing your expertise!

Best regards,
Tobias

tobiwim schrieb:
After a long time of reading, this is my first post here, so if I forget any important information, please just let me know. [...] The exterior walls are made of unfilled 50cm (20 inches) bricks. [...] We are looking for suggestions, experience reports, improvement ideas, and most importantly, error detection! Thanks for sharing your experiences!

One mistake – especially after such a long time of reading – is to only briefly and textually mention the floor below. A suggestion would be to reconsider the fact that the bricks are unfilled. Especially at this scale, filled bricks might allow for smaller dimensions. All new members (@ all Newbies!) should never miss the opportunity this forum offers by showing only a small part of their project, and even then only when they notice a specific point where they need a second opinion. Who knows, you might save 100,000 on your house by avoiding costly mistakes if you involve those advising you more broadly and use the chance for timely adjustments.

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Visual Details:

Entering a room and immediately facing a wall up close is not pleasing. The same applies to placing objects directly opposite each other (bathtub/washbasin).

Is the laundry chute operated here, or does it just pass through the room? Either way, there might not be enough space to comfortably dry clothes, and you could frequently bump into the edge.

A right-side privacy screen for the toilet would be unnecessary here if several people need to regularly access the laundry chute.

Since we are still only in the preliminary design phase, I did not want to publish the entire plan yet – that is why I have only shared an excerpt. I have created an approximate layout of the rooms below, hopefully this will be helpful:

The laundry chute would be operated here for loading.