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Spiral Community Hub with Photovoltaics and Natural Ventilation

Authors:
Cristiana Martins Pereira, Julia Francesca Schwarzmann
Spiral Community Hub with Photovoltaics and Natural Ventilation
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A spiral structure integrates natural ventilation and photovoltaic panels within a community hub, fostering connectivity and sustainable living in the heart of Portugal.
5 key facts about this project
01
Community hub designed in a spiral form to enhance social interaction.
02
Incorporates photovoltaic panels for renewable energy production.
03
Utilizes natural ventilation for improved indoor climate control.
04
Orientation aligns with cardinal directions for optimal light and views.
05
Focus on multifunctional spaces to support diverse community activities.

The design is located in an ecological village in central Portugal, near Idanha-a-Nova. It focuses on creating a community space that encourages connection with nature while providing necessary facilities for residents. The concept revolves around a spiral shape that organizes different functional areas to reflect the values of culture, social interaction, economy, and ecology.

Design Layout

The layout features distinct spaces including a community room, a kitchen and dining area, an office, a library, a terrace, storage areas, a workshop, and an entrance/gallery. Each space is thoughtfully arranged to promote interaction among residents and foster a sense of belonging. The building's orientation takes advantage of the four cardinal directions, enhancing its relationship with the landscape and offering varied experiences within the different areas.

Sustainability Features

Sustainability is a key focus of the design. Photovoltaic panels are included to provide a source of renewable energy, reducing reliance on non-renewable resources. Natural light is maximized through the use of bright wall colors and reflective ceiling surfaces, minimizing the need for artificial lighting during the day.

Thermal Performance

Thermal considerations are important, with thick walls designed to retain heat and maintain a comfortable indoor climate. The project also incorporates natural ventilation by allowing airflow through well-placed openings, reducing the need for mechanical systems. A geothermal heating system is recommended, connecting heating through walls and floors to enhance energy efficiency.

Incorporation of Materials

The choice of materials reflects a commitment to sustainability. Photovoltaics serve as an optional feature to capture solar energy. LED lighting is integrated throughout the design to improve energy efficiency and reduce consumption. These material selections align with contemporary approaches to sustainable living.

The terrace serves as an outdoor area that connects with the landscape, inviting gatherings and interactions among residents. It provides a space where community members can come together and enjoy the natural surroundings.

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Kingspan MICROHOME 2026: Building Less to Create More

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Competition organisers

The Kingspan MICROHOME 2026 competition invites architects and designers worldwide to rethink small-scale living by creating an off-grid, modular micro dwelling under 25 m². Now in its 11th edition, the contest emphasizes sustainable, innovative, and human-centered design that demonstrates how compact living can have a big impact.

With a €100,000 prize fund, entries will be evaluated for originality, efficiency, and their response to contemporary environmental and social challenges. The competition is open to everyone, with submissions allowed individually or in teams of up to four. Registration closes on 30 September 2026, and winners will be announced on 15 December 2026.

By celebrating creativity within strict limits, MICROHOME 2026 continues to push the boundaries of compact architecture and sustainable living.

MICROHOME 2026

Design a new concept of small-scale home and share a prize fund of 100,000€

100,000 € Prize Fund / Kingpsan Edition #11 ideas COMPETITION
Prize 100,000 €
Eligibility Open to all
Final registration deadline 30 September 2026

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