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Hemp Insulation and Clay Structure Create a Flexible Community Space

Author:
Alexander Gutman
Hemp Insulation and Clay Structure Create a Flexible Community Space

Project in-detail

A round structure with a hemp-insulated facade and abundant natural light serves as a versatile community space, inviting various activities and fostering social interaction.
5 key facts about this project
01
A circular form inspired by shell geometry enhances spatial harmony with the landscape.
02
Hemp insulation contributes to the building's energy efficiency and sustainability.
03
Natural light is maximized through a central skylight and large façade windows.
04
Flexible interior spaces can be divided with curtains for varied activities.
05
Multiple entrances, including summer access from a pergola, promote outdoor connection.

The SPIRALA Community Home is located on a hillside and encourages community interaction among its users. Its circular design is inspired by the natural patterns seen in shells, creating a harmonious link to the surrounding landscape. Focused on functionality, the building is suitable for various activities, such as gatherings, meditation, and yoga classes. This thoughtful architecture makes the most of the site's natural features, helping occupants feel connected to their environment.

Design Concept

The design prioritizes the use of natural light inside the building. Large windows and glass doors allow daylight to fill the interior spaces, creating a warm and welcoming atmosphere. A round skylight positioned in the hall allows even more light to enter, ensuring the space remains bright throughout the day. This clever use of light not only enhances comfort but also supports energy efficiency.

Layout and Functionality

The interior layout of the SPIRALA Community Home is adaptable and flexible. This means that the space can be divided with curtains, allowing multiple activities to take place at the same time. There is a main entrance as well as a side entrance, along with six additional access points from the pergola during the summer months. These various entryways create an open connection to the outdoors, encouraging movement and interaction among users.

Sustainability and Materiality

Sustainability is a key focus in the building's design. Natural ventilation and heating solutions are incorporated for efficiency. A tiled stove with two chambers provides heat during winter, using a space below the floor to draw in fresh air. In addition, open dormers in the kitchen and toilets improve airflow inside. The materials chosen for SPIRALA include wood, clay bricks, hemp insulation, and a green roof. These selections support ecological objectives while allowing community involvement in the construction process.

The design features a cantilevered green roof, which helps to minimize heat loss in the winter and reduces excessive sunlight in the summer. This not only enhances the building's energy efficiency, but also reinforces the connection between the built environment and nature.

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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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Buildner's Unbuilt Award 2025
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MICROHOME
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