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Inflatable ETFE Housing Integrated Within an Abandoned Water Tower

Authors:
Salam Yousef, Maryem Lachgar
Inflatable ETFE Housing Integrated Within an Abandoned Water Tower

Project in-detail

Nestled within an abandoned water tower, the design merges inflatable ETFE structures with two compact living units, creating a sustainable residential solution that revitalizes underutilized urban space.
5 key facts about this project
01
Repurposes an abandoned water tower as a residential space.
02
Incorporates inflatable ETFE structures for energy efficiency.
03
Features a roof garden that enhances greenery in urban settings.
04
Utilizes rainwater collection for sustainable water supply.
05
Offers panoramic views from the viewing platform atop the tank.

The 360° Inflatable Parasite project reimagines an abandoned water tower located in Scalo Ferroviario Porta Romana, Milan, Italy, into a lively residential space. The design addresses urban development challenges by creating a functional living environment that respects the history of the structure. The core concept integrates two tiny houses within the tower, offering an efficient housing solution that reduces the demand for new construction.

Residential Integration

The design includes two tiny houses, with one placed inside the tower and the other situated nearby. Each unit occupies a compact space, limited to 15 m², and incorporates necessary amenities such as a kitchen, washroom, storage, and combined living and bedroom areas. This thoughtful arrangement makes the most of limited space while ensuring comfort and usability.

Sustainable Features

Sustainability is a key focus of the project. The existing water tank provides a source of water for the two tiny houses. A rainwater collection system further supports its self-sufficiency. The design includes circulation paths that allow easy movement both within and around the tower, fostering a connection between the residents and the vibrant urban environment outside.

Material Approach

The inflatable structures that wrap around the tower are made from ethylene tetrafluoroethylene (ETFE). This material is known for being durable, lightweight, and highly transparent. It enhances energy efficiency by allowing more UV light inside while providing better insulation than traditional materials. These inflated volumes create adaptable living spaces that respond to different weather conditions, enriching the experience for those living there.

Community Engagement

A notable aspect of the design is the roof garden and viewing platform on top of the water tank. This feature not only improves the building's appearance but also serves as a shared space where residents can interact and enjoy views of their surroundings. The inclusion of communal areas reflects a modern understanding of urban living, where social connections are as important as private comfort.

The project creates a blend of past and present, turning a forgotten structure into a place that invites people in. With its focus on utility, sustainability, and community, it illustrates a thoughtful approach to urban living that respects its historical context while adapting to contemporary needs.

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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

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