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Biodiversity-Focused Attic Spaces with Integrated Solar and Water Management

Authors:
Ali Lavasani, Fateme Azizzadeh, Mahdi Fard
Biodiversity-Focused Attic Spaces with Integrated Solar and Water Management
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Incorporating biodiversity-friendly attic structures, solar energy systems, and rainwater management, the design fosters community living while prioritizing ecological sustainability in a residential setting.
5 key facts about this project
01
Incorporates an attic designed to support local bat populations.
02
Features solar panels integrated into the roof design for sustainable energy.
03
Utilizes a water storage tank for collecting and purifying rainwater.
04
Adapts facade elements to mitigate wind disturbances.
05
Offers a blend of public, private, and workshop areas for communal engagement.

The project is located in a community-focused area designed to encourage connections among residents while also providing private spaces for individual needs. With a clear spatial hierarchy, the layout effectively combines public, private, and workshop areas. This thoughtful organization supports social interaction, allowing people to come together while still having retreats for personal quiet time.

Sustainable Design Principles

Sustainability is a key aspect of the design. The facade is adaptable, allowing it to change with the seasons. This feature offers different vistas and experiences for residents throughout the year. By connecting the living spaces to the natural environment, the design fosters a sense of harmony between the occupants and their surroundings.

Energy Efficiency Measures

Energy efficiency plays a vital role in the overall concept. Solar panels are strategically installed between the roofs of the residential units to provide a steady source of electricity. This setup not only reduces reliance on traditional energy sources but also helps lower energy costs. Additionally, an engine house is included to heat stored water for domestic use, improving the practicality and efficiency of daily living.

Water Resource Management

A water storage tank is an integral part of the sustainability measures in the project. It collects and purifies rainwater from the roof, creating a renewable supply for domestic use. This system highlights the importance of managing water resources effectively. A septic tank is also included to handle excess rainwater, contributing to the ecological balance of the site.

In the attic, structures are designed to accommodate local wildlife, particularly bats. This choice enhances biodiversity and highlights a commitment to ecological awareness. By integrating living spaces with environmental considerations, the design reflects an understanding of the interconnectedness of nature and built environments.

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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.

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Early bird registration deadline 19 November 2025

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