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3D-Printed Concrete Pavilion with Flexible MDF Caves for Community Storytelling

Authors:
Scott Aker, Yang Du
3D-Printed Concrete Pavilion with Flexible MDF Caves for Community Storytelling

Project in-detail

Constructed with 3D-printed concrete and flexible MDF, the pavilion integrates four interconnected caves into a narrative space for filmmaking and community engagement, seamlessly blending with the surrounding Icelandic landscape.
5 key facts about this project
01
Constructed using a waste-reducing 3D-printed concrete system.
02
Features four interconnected caves designed for enhanced interaction.
03
Includes an outdoor Camp Theater framed by natural rock formations.
04
Incorporates an outlook cave providing panoramic views of the landscape.
05
Utilizes flexible MDF for improved acoustics and warmth in the interiors.

The Troll Theater in Iceland serves as a space for storytelling and filmmaking, designed to blend with its dramatic natural surroundings. Set against a backdrop of rugged landscapes, the pavilion offers a multifunctional venue that allows for film production, exhibitions, and community activities. The overall design concept draws from local myths, connecting the past with present-day creativity in an engaging architectural form.

Form and Orientation

The structure features an inverted "V" shape, echoing the lines of the nearby Icelandic hills. This form helps create a connection with the environment, where visitors can appreciate both the building and the landscape. The pavilion is oriented from east to west to make the most of sunlight throughout the day and provides frames for views toward significant local sites, including Grjótagjá. This arrangement enriches the experience for those inside, making it more than just a building.

Interior Spatial Organization

Inside, the Troll Theater consists of four interconnected caves, designed to enhance movement and interaction among users. The central cave acts as the main theater. It accommodates 50 people, with a layout tailored to meet the requirements of film projections. Surrounding this central area are spaces for collaboration and an informal cave museum, fostering a community atmosphere. The overall design encourages not just individual creativity but also collaboration among visitors.

Materiality and Sustainability

Construction of the pavilion employs a waste-reducing 3D-printed concrete system, which reflects an approach focused on sustainability. This method not only supports environmental goals but also allows for a varied architectural expression. The interiors utilize flexible MDF for wall and ceiling cladding, improving sound quality while offering a welcoming feel. These material choices highlight a commitment to both innovation and care for the environment.

Exterior Features

An intriguing aspect of the design is the outdoor Camp Theater. It is framed by existing rock formations, integrating the pavilion with its natural setting. This feature provides an open space that expands the usage of the pavilion beyond its walls. Additionally, the back of the building includes an outlook cave, which offers expansive views of the Icelandic landscape, establishing a link between the structure and the beauty of the 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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