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A clever solution: a bathroom with a round shower, washbasin and toilet in just 4.35 m²

20.02.2026 - In Le Perreux-sur-Marne (Paris region, France), a new bathroom featuring a shower, washbasin and toilet was created as part of a comprehensive home renovation, all within a space of just 4.35 m². With the room measuring 1.40 × 3.11 m, every square metre counts, meaning the bathroom design had to be planned with great precision. There was hardly any scope for classic, rectangular shower solutions here without significantly compromising on user comfort.

Opting for a circular shower restored the necessary freedom of movement. The client is a stylist and set designer – so her expectations regarding design and the overall effect of the space were correspondingly high.

When a curve becomes the solution: maximum functionality in a minimum of space

The key feature: the circular shower has been deliberately positioned so that it extends slightly into the adjoining room, an office. This gives the bathroom noticeably more space to move around in, whilst the rounded rear section appears in the office as a visible, gently curved wall surface. What serves as a practical solution also becomes an architectural detail: a true signature element, both functionally and aesthetically, which does not ‘constrict’ the floor plan but opens it up.

A comprehensive, accessible solution for fast and secure implementation

The shower was installed using JACKOBOARD® Aqua Circle from JACKON Insulation by BEWI. The system is designed as a fully accessible, all-in-one solution and consists of a floor panel and a five-part shower screen with tongue-and-groove joints. For installers, this means: clearly defined dimensions, a predictable installation process and a solution that allows the next step – tiling – to be carried out immediately.

Technology that proves its worth in everyday life

The elements feature a waterproof XPS core with a special coating on both sides. The wheelchair-accessible floor element is suitable for very low installation heights and has an integrated CNC-milled gradient that ensures efficient water drainage and facilitates a clean and quick installation. With an internal diameter of 1,000 mm (external diameter 1,100 mm), it creates a comfortable shower area that feels surprisingly spacious despite its compact footprint. The drainage capacity is 0.9 l/s; the drain can be ordered separately. Bespoke sizes are available on request.

The result: more space to move around – and a signature detail

In the finished bathroom, the advantage of the curved design becomes clear: the shower area offers the desired freedom of movement, and the curves give the bathroom structure without the need for additional walls that would visually close off the space. The curved back wall in the office becomes a design feature with a high degree of recognisability – in this project, it even served as inspiration to revisit this motif in the interior design.

 

Project details at a glance

  • Project: Bathroom renovation, Le Perreux-sur-Marne (Paris region)
  • Area: 4.35 m² (1.40 × 3.11 m)
  • System: JACKOBOARD® Aqua Circle, floor-level round shower that can be tiled directly (complete solution comprising a floor element with CNC-milled gradient and a 5-part shower screen) 
  • Dimensions: Internal diameter 1,000 mm / External diameter 1,100 mm / Drainage capacity 0.9 l/s / Custom and made-to-measure designs available on request

Images for the message

  • A clever solution: a bathroom with a round shower, washbasin and toilet in just 4.35 m²
    Image 1 / 6: A perfect fit, step by step: The prefabricated JACKOBOARD® Aqua Circle partition walls can be installed quickly.
  • A clever solution: a bathroom with a round shower, washbasin and toilet in just 4.35 m²
    Image 2 / 6: The starting point: a very narrow bathroom that still needs to be fully equipped with a shower, washbasin and toilet. The opening into the adjoining office has already been prepared.
  • A clever solution: a bathroom with a round shower, washbasin and toilet in just 4.35 m²
    Image 3 / 6: The floor panel features a precise, CNC-milled slope. This significantly speeds up progress on site.
  • A clever solution: a bathroom with a round shower, washbasin and toilet in just 4.35 m²
    Image 4 / 6: The rounded components, featuring practical tongue-and-groove joints, ensure a neat finish.
  • A clever solution: a bathroom with a round shower, washbasin and toilet in just 4.35 m²
    Image 5 / 6: The slight offset of the circular shower into the adjoining room creates noticeably more space to move around in the bathroom.
  • A clever solution: a bathroom with a round shower, washbasin and toilet in just 4.35 m²
    Image 6 / 6: A modern, accessible circular shower even in a small space: JACKOBOARD® Aqua Circle combines functionality with comfort.

For further information, please contact:

Helena Platte
Marketing/Public Relations
+49 (0) 5204 99 55 330