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Vertical Gardens and Recycled Plastic Define Compact Urban Living

Authors:
Nick Husband, Matt Jones
Vertical Gardens and Recycled Plastic Define Compact Urban Living
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Recycled plastic and vertical gardens create a compact housing solution that redefines urban space in the United Kingdom while fostering sustainable living practices.
5 key facts about this project
01
Recycled plastic is used for the building's façade.
02
Vertical gardening systems provide residents with space to grow food.
03
The design fits within two standard UK parking spaces.
04
Rainwater harvesting supplies water for domestic use and irrigation.
05
Modular layout allows for flexible living arrangements and future expansion.

The Hoitor Itoma project aims to change how parking spaces are used by turning them into residential units. Located along a city canal in the United Kingdom, the design addresses contemporary urban needs and offers adaptable living solutions. By focusing on modularity and sustainability, the project shows how urban spaces can be effectively repurposed for housing.

Architectural Concept

The design features modular units that fit within two standard UK car parking spaces. This configuration offers flexibility for creating different types of living arrangements. Residents can expand their homes into larger units through various design options. This approach not only makes better use of available land but also supports diverse housing needs in the community.

Sustainability Features

Sustainability is central to the project's goals. The design encourages an off-grid lifestyle with a vertical gardening system that allows residents to grow vegetables and herbs. This focus on local food production reduces reliance on outside sources and promotes self-sufficiency. The angled shape of the building supports rainwater harvesting, ensuring water is collected for use in kitchens and bathrooms as well as for watering plants.

Spatial Arrangement

Inside the units, the layout clearly separates public and private areas. Private living spaces are treated with a solid timber façade that provides privacy, while common areas are behind a translucent plastic front. This design choice permits natural light to enter the spaces while maintaining a connection to the outside world. A central glazed lightwell brings in additional light, enhancing the comfort of the home.

Materials and Construction

The materials used in the project play a significant role in its sustainability goals. Recycled plastic and sustainably sourced timber help minimize environmental impact while promoting durability. These materials not only support energy efficiency but also contribute to the visual appeal of the structure, creating a harmonious and functional living environment.

A distinctive feature of the design is the vertical garden system that is integrated into the façade. This system allows residents to grow plants in a compact manner, enhancing their connection to nature and improving the building’s ecological performance.

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competition now

Denver Affordable Housing Challenge
Denver Affordable Housing Challenge
Affordable Housing Series 19th Edition
The Architect's 
Chair
The Architect's Chair
Take a seat and make a statement! Edition #4
MICROHOME
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100,000 € Prize Fund / Kingpsan Edition #10
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Buildner's Unbuilt Award 2025
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100,000€ Prize / 2025

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

Open architecture competitions

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    Selected winning projects have the potential to be constructed
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    Experimental competitions with the focus on pushing the boundaries of creativity
Denver Affordable Housing Challenge

AIA (American Institute of Architects) invites you to design affordable housing in Denver

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Prize Monetary award
Eligibility Open to all
Final registration deadline 18 September 2025

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