Get inspired!

17,725 architecture projects

Learn from past Buildner architecture competition participants through our extensive project library, curated over more than 15 years!

Rammed Earth Structure With Twisting Wind Tower for Sustainable Living

Author:
Nk3 architects Nk3 architects
Rammed Earth Structure With Twisting Wind Tower for Sustainable Living

Project in-detail

A twisting wind tower enhances passive cooling in a rammed earth structure, offering a sustainable living solution tailored to the needs of rural professionals.
5 key facts about this project
01
A two-storey twisting air shaft serves as a wind tower for natural ventilation.
02
The design integrates local materials such as rammed earth and clay bricks.
03
Rainwater is harvested through a unique wind catcher system on the roof.
04
Cross-ventilation is optimized through strategically placed openings.
05
The structure is designed for off-grid living, reducing energy dependency.

The COOLHOUSE project offers a practical response to the housing crisis in rural India, where many young professionals leave for urban areas seeking better opportunities. It is set in a region known for extreme climate conditions, making the design both relevant and functional. The aim is to bring these individuals back home by providing a modern living space that promotes sustainability and comfort. The concept combines contemporary design with elements drawn from local architectural traditions, creating a home that meets the needs of its occupants while respecting the environment.

Design Concept

At the heart of the design is a two-storey twisting air shaft that serves as a wind tower. This feature captures cooler air from above and directs it into the living areas, which helps cool the home in the hot, dry climate typical of rural regions like Rajasthan. By using natural elements for ventilation, the design ensures that indoor temperatures remain comfortable without relying heavily on mechanical systems.

Passive Strategies

The building incorporates several passive design strategies aimed at enhancing energy efficiency. Key features include cross-ventilation and passive solar shading. These components work together to maintain a pleasant indoor climate. The arrangement of openings and spaces encourages airflow, allowing for a reduction in energy use. This approach not only supports environmental goals but also fosters a healthier living space for its occupants.

Water Management

Water management is a critical element of the design. A wind catcher located at the top of the structure collects rainwater and morning dew. This water is filtered and made available for various uses within the home. This system reflects an understanding of local climate patterns and emphasizes the importance of sustainable water practices, which is increasingly necessary in rural areas.

Materiality

Material choices for the structure are closely linked to local resources. The use of rammed earth, clay bricks, and locally sourced timber not only adds durability but also improves thermal performance. This selection reflects a dedication to sustainability while maintaining a connection to regional craftsmanship. The materials contribute to a modern aesthetic that still honors local heritage and culture.

The wind tower serves as more than just a practical feature; it acts as a focal point that defines the home's architectural identity. Its twisting design integrates well into the overall form, bringing both functionality and visual interest. This element not only enhances the building's performance but also connects it meaningfully to its surroundings and community.

Noticed a mistake?
Highlight the text and click on
Noticed a mistake

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

`
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

Buildner's Unbuilt Award 2025
Buildner's Unbuilt Award 2025
100,000€ Prize / 2025
Denver Affordable Housing Challenge
Denver Affordable Housing Challenge
Affordable Housing Series 19th Edition
The Architect's 
Chair
The Architect's Chair
Take a seat and make a statement! Edition #4
MICROHOME
MICROHOME
100,000 € Prize Fund / Kingpsan Edition #10
Kinderspace
Kinderspace
Architecture for Children’s Development #3
To view this project in detail,
please log in with your
Architects’ Network Plus account.
Subscription instantly unlocks all the architecture projects plus other member-only benefits:
  • Access the 17,725 Concept Library
  • Professional tools including file transfer, email, portfolio management, and more
Register now
Already a member? Log in

This website uses cookies to improve user experience and gather usage statistics.

More information is available in our Privacy & Cookie policy