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Aquatic Habitat Created with Sustainable Concrete and Glass in a Coastal Retreat

Aquatic Habitat Created with Sustainable Concrete and Glass in a Coastal Retreat
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Constructed with durable concrete and expansive glass panels, the design supports marine life through its coral habitat features while serving as a sustainable retreat for eco-conscious visitors.
5 key facts about this project
01
Constructed with marine-grade concrete to withstand coastal conditions.
02
Incorporates coral habitat features designed to promote marine biodiversity.
03
Utilizes a rainwater harvesting system for sustainable water supply.
04
Features large glass panels for unobstructed ocean views.
05
Employs an off-grid energy system relying solely on solar power.

## Overview

The Coral Reef Cabin is located in the Great Barrier Reef, Queensland, Australia, a UNESCO World Heritage Site characterized by its rich marine biodiversity. The project aims to establish a sustainable living model that addresses the ecological challenges posed by climate change while supporting local communities dependent on tourism.

### Architectural Intent

The design integrates habitation with the marine ecosystem while emphasizing sustainability and resilience. Key objectives include the promotion of off-grid living through renewable energy sources, the enhancement of local biodiversity by fostering coral growth, and the engagement of local communities through eco-tourism initiatives.

### Unique Features

The cabin operates autonomously with a comprehensive off-grid system that includes solar panels for electricity generation and a rainwater collection system for water supply. The structure is designed to blend with its environment through the use of materials that mimic natural reef formations, thereby encouraging fish recruitment and coral propagation.

Large glass panels facilitate natural light and expansive ocean views, reinforcing the connection between occupants and their surroundings. Additionally, the selection of eco-friendly materials, including concrete blockwork for structural integrity, stainless steel for durability, and high-performance glass panels for insulation, contributes to the building's sustainability.

### Design Outcomes

The design effectively reduces the carbon footprint through its integration of renewable energy and sustainable materials. It boosts local economies by attracting tourism and generating employment opportunities for community members. By modeling eco-tourism, the project encourages sustainable practices among visitors and residents, facilitating collaborative efforts in marine conservation.

Illustrative highlights such as exploded axonometric diagrams visualize the cabin's spatial organization and functional zoning, while renderings showcase airy, light-filled interior spaces. The construction methods, characterized by low-tech, sustainable techniques, are further detailed in building process diagrams, underscoring the project's commitment to environmental responsibility.

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The Next House: USA — A Global Call to Reimagine the American Suburb

`
Competition organisers

Buildner is launching The Next House: USA, a global architecture competition that challenges architects, designers, and thinkers to reimagine the American suburban home for the 21st century. For decades, the suburban house has symbolized comfort and stability, but today it often reflects excess, isolation, and environmental strain. This competition asks: how can the American home evolve to address climate urgency, economic pressures, and shifting social values?

Participants are tasked with designing a prototype home of no more than 1,500 sq ft (≈140 m²) for a household of two adults and one child. The design should be compact yet generous, adaptable, sustainable, affordable, and replicable across diverse U.S. contexts. More than a design exercise, the competition aims to spark a conversation about how homes can support healthier, smarter, and more connected communities.

The total prize fund is $20,000 USD. The final registration deadline is May 20, 2026, and winners will be announced on September 22, 2026. The Next House: USA invites architects, students, and visionaries worldwide to redefine what the American home means today—and what it should mean tomorrow.

The Next House: USA

Design the next suburban home for the USA

20,000 USD Prize ideas COMPETITION
Prize Monetary award
Eligibility Open to all
Early bird registration deadline 19 November 2025

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Celebrating your unbuilt architecture visions with a €100,000 prize

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