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Rammed Earth and Polycarbonate Integration in a Community-Focused Residential Structure

Authors:
Jiajun Cheng, Yaxin Sun, Chenglu Xue, Zijie Wei
Rammed Earth and Polycarbonate Integration in a Community-Focused Residential Structure

Project in-detail

Incorporating rammed earth and a polycarbonate façade, this residential structure enhances energy efficiency while fostering community interaction through its thoughtfully designed layout.
5 key facts about this project
01
Rammed earth provides thermal mass and durability while minimizing environmental impact.
02
The polycarbonate façade allows natural light while insulating the structure from heat.
03
A two-bar layout separates living spaces from service areas, enhancing functionality.
04
Community spaces are integrated with outdoor areas to foster social interaction.
05
Natural ventilation strategies reduce reliance on mechanical cooling systems.

### Project Overview

The Long House is situated in Topanga, California, and has been designed to respond to the region's Mediterranean climate while promoting sustainable living practices. With an emphasis on community engagement and resource efficiency, the project incorporates a cohesive architectural approach that balances functionality and aesthetic integrity. The design is intended to facilitate adaptability and replicability in similar geographical contexts.

### Spatial Organization and Community Integration

The Long House features a dual-bar configuration that distinctly separates living and service areas. This organization allows for a flexible layout that can be adjusted to meet the diverse needs of occupants. Outdoor spaces are integrated throughout the design, serving as communal gathering areas while providing amenities such as bike storage and charging stations. The inclusion of natural ventilation and daylight strategies enhances environmental performance by reducing reliance on artificial lighting and HVAC systems.

### Material Selection and Environmental Considerations

In alignment with sustainable architecture principles, the Long House utilizes locally sourced materials, such as rammed earth, which offers thermal efficiency and durability. The outer polycarbonate façade permits natural light into the spaces while minimizing heat gain, thereby supporting energy conservation. A robust steel frame ensures structural resilience and facilitates efficient assembly. Additionally, the use of skylights and glass enhances the quality of natural light within the living areas, creating an inviting atmosphere that fosters interaction with the surrounding environment.

This project also incorporates ecological considerations, including planting grids for native flora and nesting sites for local wildlife, thereby reinforcing biodiversity within the urban landscape. The design promotes an integrated approach to living that prioritizes connection with both nature and community.

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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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