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Rainwater-Capturing Wall Utilizing Cross-Laminated Timber Panels in an Off-Grid Microhome

Authors:
Sheena Gary, Surani Gunawardana, Carlos Montes
Rainwater-Capturing Wall Utilizing Cross-Laminated Timber Panels in an Off-Grid Microhome

Project in-detail

Utilizing cross-laminated timber panels and a rainwater-capturing wall, this off-grid microhome integrates renewable energy systems and natural ventilation to create a sustainable living environment.
5 key facts about this project
01
Utilizes a vertical rainwater collection wall that also provides natural ventilation.
02
Incorporates a built-in wind turbine for energy generation.
03
Features a flexible pull-out kitchen counter for efficient space use.
04
Constructed with moisture-regulating lime plaster to enhance indoor air quality.
05
Includes a biogas system for waste-to-energy conversion.
The project "Vida Verde," situated in Marbella, Spain, is an architectural design that emphasizes sustainability, efficiency, and an integrated relationship with the environment. This off-grid microhome serves as a residential space that prioritizes eco-friendly living while ensuring functionality and aesthetic appeal. The design unifies smart resource management with modern architectural principles, creating a dwelling that is both practical and visually coherent.

The principal function of Vida Verde is to provide a comfortable living space that operates independently from conventional utilities, therefore promoting a sustainable lifestyle. The architectural design embodies features that facilitate this independence, including renewable energy generation, water collection systems, and innovative heating and cooling solutions.

Sustainability Features and Unique Design Approaches

An important aspect of Vida Verde is its innovative integration of renewable resources. The project includes a built-in wind turbine and solar panels, allowing the residence to generate its energy. This reduces reliance on external power sources. The architectural plans detail how these systems are strategically placed to optimize efficiency while maintaining an aesthetically pleasing design.

The structure employs a vertical concrete element that serves a dual purpose. It acts as a rainwater collection wall while also housing louvers for natural ventilation. This design is not only functional but elevates the architecture by creating a strong visual element that distinguishes the home within its landscape.

The use of materials is another defining characteristic of the project. Components such as cross-laminated timber, lime plaster, and hempcrete have been chosen for their sustainability and functional properties. Cross-laminated timber provides structural stability, while lime plaster enhances indoor air quality through its moisture-regulating capabilities. The inclusion of hempcrete for insulation highlights a commitment to environmentally friendly materials and effective thermal regulation.

Flexible Living Spaces

Vida Verde incorporates flexible design strategies that enhance the usability of its spaces. Public areas such as the living room and kitchen are open and multifunctional, allowing for adaptability in the day-to-day life of its residents. Key architectural designs include a pull-out kitchen counter that maximizes utility in compact spaces without sacrificing comfort. By prioritizing these design strategies, the project responds to the needs of modern living while maintaining an emphasis on simplicity and practicality.

The overall architectural outcome reflects a clear intention to merge indoor and outdoor environments. Large windows and sliding doors facilitate an organic flow between the home and its surroundings, promoting a connection to nature that is often absent in traditional designs.

For more insights into this innovative architectural project, readers are encouraged to explore the detailed architectural plans, sections, and designs available in the project presentation. These documents offer a deeper understanding of the design approaches and sustainability principles that define Vida Verde.
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MICROHOME
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100,000 € Prize Fund / Kingpsan Edition #10
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Buildner's Unbuilt Award 2025
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100,000€ Prize / 2025

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

Competition organisers

The 10th edition of the MICROHOME architecture competition invites architects and designers from around the world to explore the possibilities of compact, sustainable living. Hosted by Buildner in collaboration with Kingspan and Hapi Homes, this special edition challenges participants to design an off-grid, modular microhome for a young professional couple, with a maximum floor area of 25 m². Designs should prioritize innovation, efficiency, and real-world feasibility. 

A total prize fund of 100,000 € will be awarded, including three main prizes, the Kingspan Award, and the Hapi Homes Award, which will grant 15,000 € and lead to the construction of the selected design. The final registration deadline is September 25, 2025, and winners will be announced on Decebmer 9, 2025. For full competition details and submission guidelines, visit microhome.info.

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
Early bird registration deadline 22 May 2025
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