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Translucent Polycarbonate Cabin with Integrated Rainwater System

Authors:
Marina Parsekian, Thiago Ribeiro, Isabella Molina, Vitor Martins
Translucent Polycarbonate Cabin with Integrated Rainwater System

Project in-detail

With a system of pivot doors that seamlessly connects its polycarbonate envelope to the surrounding forest, the cabin incorporates rainwater collection and lush greenery to create a functional space for meditation.
5 key facts about this project
01
The cabin features a unique system of floor-to-ceiling pivot doors for varied engagement with nature.
02
Utilizes a translucent polycarbonate envelope to optimize natural daylight and enhance interior ambiance.
03
Integrates a rainwater collection system for irrigation of indoor plants, promoting sustainability.
04
Includes removable flower vases on handrails to encourage interaction with the outdoor environment.
05
Designed with a modular wood structural system for efficient assembly and reduced waste.

The Lighthouse Cabin, known as the Tiny Kiwi Meditation Cabin, is a thoughtfully designed space located in a forested area conducive to meditation. Its purpose is to create environments where people can reflect and connect with nature. The design concept focuses on adaptability, allowing users to choose between a communal experience and a moment of solitude. A distinctive feature of the cabin is the use of large doors that open the interior to the outside world.

Design Intent

The main idea behind the design is to strike a balance between openness and privacy. The cabin incorporates floor-to-ceiling pivot doors that serve as a connection to the environment. These doors can be opened to let in fresh air and natural sounds, enhancing the meditation experience. When closed, they offer a retreat, allowing individuals to focus without distractions from the outside.

Spatial Configuration

The cabin's layout features two levels, with the ground floor designated for meditation and the mezzanine used for functions such as storing materials and processing natural essences. This arrangement supports efficient use of space while ensuring access to natural light and ventilation. The translucent envelope of the building plays a vital role in this design, allowing daylight to filter through and creating a calm atmosphere inside.

Sustainability and Resource Management

Sustainability is an essential aspect of the design. The cabin includes a system that collects rainwater from its roof, directing it to a storage area beneath the ground floor. This water is then used to irrigate plants on the mezzanine, promoting an eco-friendly approach to resource use. The cabin also features removable flower vases on the handrails, encouraging interaction with the natural surroundings and allowing occupants to engage with their environment.

Material Use and Construction

In terms of materials, polycarbonate sheets are employed for the cabin’s outer layer. These materials help to manage the amount of light entering the space while allowing the play of light and shadows from surrounding trees. The structure is built using a wood framework designed for modular assembly. This choice simplifies construction and reduces waste, as parts can be pre-cut for efficient installation. The fireplace is central to the cabin's function, providing warmth and generating electricity for lighting, merging practicality with comfort.

The inclusion of elements like removable flower vases enhances the experience. They invite users to personalize the space and strengthen the relationship with the outdoors, making each visit to the cabin unique.

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MICROHOME 10: Celebrating Small-Scale Living with €100,000 Prize Fund and Kingspan’s Innovation

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Competition organisers

The MICROHOME 10 competition invites participants to submit visionary designs for off-grid, modular microhomes that push the limits of sustainable, small-scale living. Organised by Buildner in partnership with Kingspan and Hapi Homes, this tenth edition sets the challenge of designing a dwelling for two people within a maximum floor area of 25 m², encouraging bold solutions adaptable to any urban or rural location. The competition continues Buildner’s mission to foster innovative approaches to compact, energy-efficient housing that can address pressing global challenges.

This year’s edition offers a generous total prize fund of €100,000, including the Kingspan Award for designs that integrate high-performance Kingspan products and the Hapi Homes Award for a project selected for real-world construction. In addition to cash prizes, the winners gain international exposure through Buildner’s media partnerships, publications, and a dedicated MICROHOME magazine, further amplifying their ideas to the wider architectural community.

Key dates for MICROHOME 10 include the closing date for registration on 25 September 2025, the submission deadline on 29 October 2025 (11:59 p.m. London time), and the announcement of winners on 9 December 2025. These milestones ensure participants have clear timelines to develop and present their concepts, with early registration discounts available to support students and emerging designers worldwide.

MICROHOME

Design a new small-scale home concept in the 10th edition of MICROHOME — 100,000 € prize + construction

100,000 € Prize Fund / Kingpsan Edition #10 ideas COMPETITION
Prize 100,000 € + Potential realisation
Eligibility Open to all
Final registration deadline 25 September 2025

Enter an open architecture
competition now

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