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Up-Cycled Plastic Roof Shingles and Greywater Management in a Compact Coffee Kiosk

Authors:
Karolina Kielb, Iman Mohd hadzhalie
Up-Cycled Plastic Roof Shingles and Greywater Management in a Compact Coffee Kiosk

Project in-detail

Constructed with up-cycled plastic roof shingles and an integrated greywater recycling system, the compact kiosk provides an efficient and engaging space for coffee service in urban environments.
5 key facts about this project
01
Up-cycled plastic coffee cups are used as innovative roof shingles.
02
A greywater recycling system filters and repurposes sink water for plant irrigation.
03
The compact design includes dual-purpose water tanks for seating and tables.
04
An ergonomic handlebar allows for easy transport and repositioning.
05
The structure's height and roof design enhance the interaction between barista and customer.

The coffee shop kiosk project presents a practical approach to mobile architecture, designed to serve coffee while fostering a sustainable environment. Located in urban areas, the kiosk functions as a compact and flexible space where people can enjoy their drinks and observe the process of coffee making. The design emphasizes functionality, environmental care, and interaction, creating a unique experience for customers.

Structural Design
The structure primarily features a strong steel frame that provides stability. Plywood cladding enhances the appearance while contributing to the overall strength of the kiosk. Up-cycled plastic coffee cups are used as roof shingles, adding an interesting visual aspect while aligning with eco-friendly principles. This choice to repurpose materials showcases a commitment to reducing waste.

Mobility and Usability
Designed for easy transport, the kiosk includes a handlebar that allows for simple movement. The roof canopies fold down, facilitating quick setup and secure closure when not in use. Inside, the workspace is organized for the barista, including a sink, dish rack, and storage. This thoughtful layout ensures efficient operations while serving customers.

Customer Interaction
A key feature of the design is the counter window that allows customers to connect directly with the barista. Patrons can watch the coffee preparation, making the experience more engaging. Seating and tables created from water tanks encourage social interaction, enhancing the overall ambiance without compromising the aesthetic of the structure.

Sustainable Practices
The kiosk incorporates a grey water recycling system that captures water from the sink. This used water is filtered and reused for watering plants nearby. The filtration process employs ground coffee beans, sugar, and silicone. By managing water effectively, the design promotes ecological responsibility while enriching the surrounding environment.

The roof includes an engraved design with a scalloped fringe. This detail softens the structure's outline and adds charm to the overall appearance, helping the kiosk stand out. The combination of form and function creates a welcoming and practical environment for both baristas and customers.

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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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