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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

Project in-detail

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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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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