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Trombe-Green Wall Cabin with Prefabricated Wood and Straw Elements

Author:
Mohamed Elbangy
Trombe-Green Wall Cabin with Prefabricated Wood and Straw Elements

Project in-detail

The installation of a Trombe-green wall in a prefabricated cabin made from wood and straw enhances passive heating and air purification, creating an efficient living space designed for individual occupancy in Latvia's natural landscape.
5 key facts about this project
01
A Trombe-green wall enhances energy efficiency and air quality.
02
The cabin is designed specifically for single occupancy.
03
Materials used include wood, straw, and wood fiberboards.
04
It features a compact, multifunctional interior layout.
05
The exterior is finished in black to absorb solar heat.

The prefabricated off-grid cabin is designed for individual use and located in Ozolini, Latvia. It emphasizes sustainability and energy efficiency, while fostering a close connection with the natural surroundings. The cabin's layout is oriented along the east-west axis, which optimizes solar exposure. This design choice enhances the effectiveness of passive heating strategies, allowing the structure to minimize reliance on external energy sources. The overall concept reflects thoughtful consideration of the environment, resulting in a functional and integrated design.

Cuboid Volume and Orientation

The cabin stands as a simple cuboid shape that faces south to capture sunlight throughout the day. This orientation improves passive solar heating and contributes to energy efficiency. Large door-window-skylight openings between interior and exterior spaces allow natural light to fill the cabin. These design features also provide striking views of the surrounding landscape, making nature an integral part of the living experience.

Integration of Trombe-Green Wall

A key component of the design is the Trombe-green wall positioned on the south facade. This element has two main functions: passive heating and air purification. The use of vegetation on the wall not only improves indoor air quality but also helps maintain comfortable temperatures inside. This addition highlights a modern approach to sustainable design, illustrating a commitment to using natural elements for the benefit of the occupants.

Dynamic Interior and Functional Layout

Inside, the cabin utilizes a dynamic cupboard-like wall that offers various functions within a compact space. This innovative aspect integrates essential components such as a closet, bed, kitchenette, and toilet into one unit. The layout encourages adaptability, allowing residents to adjust the space according to their needs. This functionality promotes comfort and creates a suitable environment for rest and meditation.

Materiality and Aesthetic Consideration

The chosen materials include wood, straw, and wood fiberboards, which align with the project's sustainable intent. Using natural materials reduces the ecological footprint and keeps embodied energy low. The exterior is finished in black, which absorbs sunlight and assists with passive heating. This color choice creates a calming visual effect that blends with the landscape. Carefully placed windows frame picturesque views, connecting occupants closely with nature and enhancing the overall living experience.

The cabin’s design highlights a clear relationship with its environment, combining practical functions with a respect for natural elements. Each aspect is thoughtfully executed, resulting in a structure that serves the needs of its inhabitants while harmoniously coexisting with the landscape.

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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

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