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HDPE Modular Housing with Rainwater Harvesting and Flexible Spaces

Author:
Damon Leverett
HDPE Modular Housing with Rainwater Harvesting and Flexible Spaces

Project in-detail

Constructed from recycled HDPE, this modular housing solution integrates rainwater harvesting and flexible spaces, addressing urban living needs with a focus on sustainability and efficiency.
5 key facts about this project
01
Constructed entirely from recycled HDPE, reducing reliance on new materials.
02
Integration of rainwater harvesting systems enhances sustainability and resource management.
03
Modular design allows for quick assembly and adaptability to various urban contexts.
04
Features flexible living spaces that accommodate changing resident needs.
05
Employs post-tensioning techniques for structural stability and efficiency.

The ReFabMod project presents a modern approach to modular housing, situated in an urban environment where sustainable practices are becoming essential. The design focuses on creating adaptable living spaces that prioritize efficiency and environmental responsibility. Here, the aim is to combine functionality with advanced technology for a better living experience, responding to the changing needs of residents.

SUSTAINABILITY INITIATIVES

The project places significant emphasis on sustainability by recycling High-Density Polyethylene (HDPE) plastic. In the United States, over 115 million pounds of this type of plastic are discarded daily, which presents both a challenge and an opportunity. By transforming HDPE marked #2 into building materials, the project not only reduces waste but also contributes to resource conservation in construction. This recycling process begins with the collection of plastic waste, which is then processed into usable components, minimizing the environmental impact.

FUNCTIONAL LAYOUT

ReFabMod incorporates a carefully planned layout that includes various essential areas for living. There are designated spaces for storage, communal living, a flexible area, a kitchen, baths, showers, and outdoor features like patios and gardens. This arrangement enhances both comfort and community among residents, giving them multiple options for how to use the space. Each area is designed to encourage connection while addressing individual needs, showcasing how thoughtful design can facilitate daily life.

MODULAR CONSTRUCTION TECHNIQUES

The construction methods used in the project are innovative and efficient. Using large format 3D printing and extrusion technology, building parts are created from recycled plastic pellets. Once these parts are manufactured, they can be prefabricated into larger sections or simplified into individual components, which makes transportation and assembly easier. A sectional post-tensioning system is employed to add strength and stability to the entire structure. This approach allows for a faster assembly process with less disruption on site.

The design inherently incorporates elements that support resource management. Rainwater storage and collection systems are integral to the project, enhancing the overall environmental strategy and demonstrating a commitment to sustainable living practices.

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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
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