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Earth Sheltered Retreat Featuring Passive Cooling and Rammed Earth Construction

Authors:
Anindya Pandit, Mustafizur Rahman, Ajmain Robin, Pritam Dey, Md. Jahidul Ahasan
Earth Sheltered Retreat Featuring Passive Cooling and Rammed Earth Construction

Project in-detail

Incorporating rammed earth construction and a sunken courtyard for passive cooling, this retreat maximizes thermal efficiency while providing a serene living space within a harsh desert environment.
5 key facts about this project
01
Incorporates a sunken courtyard that optimizes natural cooling and minimizes direct sunlight exposure.
02
Utilizes locally sourced rammed earth for high thermal mass and energy efficiency.
03
Features a wind-catcher design that enhances airflow and indoor comfort.
04
Integrates native vegetation around the structure to improve the microclimate.
05
Employs an orientation strategy to maximize passive solar heating during winter months.

### Project Overview
"Shadow of the Sand" is situated in a desert landscape and aims to address the challenges posed by extreme climatic conditions through the application of sustainable building techniques combined with traditional architectural practices. The design seeks to create a retreat that offers protection from intense heat while fostering a connection to the natural environment.

### Spatial Configuration and User Interaction
At the core of the design is a sunken courtyard that serves as a multifunctional outdoor space, promoting passive cooling and shielding areas from direct sunlight. The incorporation of a wind-catcher enhances indoor air quality by directing prevailing winds into living spaces, further improving user comfort. The arrangement of rooms around this central feature facilitates both communal interactions and privacy, creating a harmonious flow between private and shared spaces. This strategic layout encourages residents to engage with the surrounding desert while reflecting traditional spatial organization principles.

### Material Selection and Environmental Impact
The structure utilizes a combination of reinforced rammed earth, concrete, wood, glass, gravel, and metal, all chosen for their thermal performance and sustainability. Local materials have been prioritized to minimize transportation emissions, reinforcing the project’s commitment to environmental stewardship. Additionally, the passive solar design significantly reduces reliance on mechanical cooling systems, aligning with contemporary sustainable architecture goals. This thoughtful selection of materials not only contributes to the building's durability but also enhances its integration with the desert landscape, promoting an ecological balance.

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

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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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