For architects
Prefabricated bathrooms with architectural freedom
Green Box gives you as an architect great freedom to let the bathroom follow the lines of your project.
In Kaktustårnene in Copenhagen, for example, we have delivered 495 bathrooms in a specially developed trapezoidal shape, matching the rotating geometry of the buildings and contributing to a distinctive architectural look.
Our prefabricated bathrooms are built around an innovative lightweight structure that delivers a range of distinct advantages. The reduced weight enables significantly slimmer structural designs and floor separations compared to traditional, much heavier concrete pods. This creates greater architectural freedom and opens up new design possibilities.
You also have the freedom to work with exclusive materials and finishes. Walls and floors can be clad in large-format tiles (slabs), creating calm, uninterrupted surfaces while minimising maintenance. Explore details and features here.
Although the bathrooms are delivered as complete, prefabricated units, you retain architectural freedom in terms of form, material selection, and detailing.
Bathrooms as an integrated part of the architecture
Whether you are designing a residential building, hotel, student housing or another type of development, we engage in close dialogue on the design and integration of the bathrooms within the overall project.
You gain flexibility in design, material selection and the positioning of technical installations, ensuring the bathrooms support the architectural concept – both aesthetically and functionally.
This enables you to work with distinctive geometries, bespoke solutions and carefully considered material choices, without compromising on function or quality.
Our production process allows for the manufacture of tailored bathroom series aligned with the specific requirements and expression of each project – delivering consistent quality and finish from the first unit to the last.
“We develop prefabricated bathrooms designed to reduce environmental impact by using fewer materials and emitting less CO₂ than traditional solutions – and we continuously work to improve our processes.”
Kirsten Sønderskov Andersen, CEO, Green Box A/S
WE HAVE A SHARED RESPONSIBILITY
BATHROOMS WITH A FOCUS ON ENVIRONMENT AND QUALITY
At Green Box, we take a systematic approach to integrating environmental considerations into the development of our prefabricated bathrooms.
Green Box bathrooms are built using a lightweight structure, where only the floor contains a reduced layer of concrete. This lowers material consumption and results in a significantly reduced weight compared to heavier solutions, e.g. traditional concrete pods. Depending on the overall design of a project, this can influence both the building’s total carbon footprint and its use of resources. The low weight of the bathrooms may also impact the overall structural design of the building.
All materials used in the production of Green Box bathrooms are approved for use in Nordic Swan Ecolabelled construction, and the bathrooms can be supplied for projects certified under schemes such as DGNB and BREEAM.
As a standard, our bathrooms have a calculated carbon emission of approximately 2.9 kg CO₂ per m² per year.*
*The calculation is based on standard assumptions and typical usage conditions. Project-specific documentation is available on request.

STANDARD WEIGHT: 325 KG/M2

INSTALLATION HEIGHT: Down to 95 mm

2.9 KG CO2 / M2 / YEAR*
*Applies to a standard bathroom,
based on Danish LCA calculations.
Documented technical quality
Technical Approval for Use (TGA)
Green Box is the only manufacturer of lightweight, prefabricated bathrooms in Denmark with a Technical Approval for Use (TGA).
The TGA is a voluntary, third-party verified scheme that documents the performance of the bathrooms and outlines their compliance with current Danish building regulations – including requirements for wet rooms.
For you as an architect, this provides a documented basis for design and specification. The TGA supports the integration of prefabricated bathrooms into project documentation with clarity on technical conditions and application.
From factory to site – delivery of Green Box bathrooms
Follow the journey as Green Box prefabricated bathrooms leave the factory and arrive on site. The video demonstrates how delivery is carried out with a focus on safe and efficient logistics that support the overall construction schedule.
You will also gain insight into recommended procedures for blocking, unloading, hoisting and unwrapping – essential details that contribute to correct installation and a high-quality final result.
With Green Box, you receive prefabricated bathrooms prepared for seamless integration into the building, with clear guidelines for handling from the first lift to final installation.
Be inspired by details and features
References
Find inspiration
Building with Green Box bathrooms
At Green Box, we collaborate closely with our clients to develop the right solution for each individual project. As a result, no two prefabricated bathrooms are identical.
Our bathrooms are designed for both new builds and renovation projects – across residential developments, hotels, student housing and more.
Explore our references and find inspiration for your next project in a wide range of tailored solutions.
YOUR SHORTCUTS
WE HAVE MADE THINGS EASY
YOUR SHORTCUTS TO THE BATHROOMS OF THE FUTURE
We have made a collection of shortcuts for you. Here you can find more information about the bathrooms of the future from Green Box.

bathrooms of the future

Our responsibility

References

Details & features

Downloads
Contact us
We’re here to support you
Your consultant on prefabricated bathrooms
If you have questions about prefabricated bathrooms in your project, we are ready to support you with both technical and architectural input.
At Green Box, we work closely with architects throughout the design and specification phases – from layout and material selection to the integration of installations and documentation. We contribute with professional insight and practical experience, ensuring the bathroom supports both the architectural vision, functionality and execution.
With extensive experience in prefabricated bathrooms, we offer qualified guidance to help you identify the right bathroom solution for your project.
















