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Polycarbonate Canopy and Steel Framework Create a Dynamic Social Hub in Urban Tokyo

Polycarbonate Canopy and Steel Framework Create a Dynamic Social Hub in Urban Tokyo
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A polycarbonate roof and steel framework define a welcoming lookout bar in Tokyo's densely populated Golden Gai district, creating a space for community interaction and social gatherings.
5 key facts about this project
01
Polycarbonate roofing allows natural light while maintaining transparency with surrounding urban views.
02
The steel framework provides structural integrity while allowing for minimalistic design throughout.
03
Open façade enhances airflow and invites passersby to engage with the space seamlessly.
04
A lookout deck offers panoramic views of the Tokyo skyline, merging social areas with cityscapes.
05
Wind turbines on the roof contribute to on-site energy generation, promoting sustainability.

### Project Overview

Located in the Golden Gai district of Tokyo, Japan, this three-story structure is designed to serve multiple functions that prioritize social interaction while providing modern amenities. The architectural design merges traditional cultural elements with contemporary practices to create a space that balances functionality with a welcoming atmosphere.

### Spatial Configuration and User Interaction

The design promotes communal engagement and personal reflection through a carefully considered spatial arrangement. The ground floor accommodates a bar and communal kitchen, fostering interaction with an open façade that enhances airflow. The first floor offers semi-private seating, allowing for social conversations within proximity to street activity, while the second floor provides a lookout point, offering panoramic views of the Tokyo skyline. Each level serves distinct purposes, facilitating both casual gatherings and quiet retreats.

### Material Selection and Sustainability

Materials used in the construction are integral to the building's design ethos. The use of Kingspan AWP LEC wall panels enhances insulation while ensuring structural integrity. A steel frame composed of square tubes provides durability, while polycarbonate sheets on the roof allow natural light to enter the interior. Externally, RAL 7016 aluminum cladding presents a modern yet understated aesthetic. To further support sustainability, wind turbines atop the structure generate energy, exemplifying a commitment to environmental responsibility while adding visual interest to the skyline.

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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.

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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

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Eligibility Open to all
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