̽��ֱ�� of Cambridge - Ana Gatóo

House of moveable wooden walls promising cheaper, greener alternative to ‘knocking through’, wins award

ta385 — Thu, 22 Jun 2023 10:30:00 +0000

House-owners the world over consider ‘knocking through’ walls to achieve more open-plan living or changing layouts to accommodate new arrivals or circumstances. ̽��ֱ��results may be impressive, but they come at a sizeable financial and environmental cost. But what if it wasn’t necessary to demolish internal brick and/or plaster walls and build new ones?

In June 2023, researchers at Cambridge’s Centre for Natural Material Innovation unveiled 'Ephemeral', an innovative alternative using engineered wood, at the London Design Biennale. ̽��ֱ��team, including partners PLP Architecture, went on to win the Public Choice Award for EUREKA!, the Biennale's first showcase of design-led innovation from UK research centres.

̽��ֱ��project, led by Cambridge researcher Ana Gatóo, invites visitors to step into a home constructed around principles of affordability, sustainability, flexibility and adaptation. ̽��ֱ��flexible wooden partition walls – developed by Gatóo as part of her Cambridge PhD research – are made using kerfing, which allows wood to bend without breaking, the same technique employed in the construction of guitars and other stringed instruments.

̽��ֱ��resulting wooden walls are simple, resilient, foldable and movable, meaning they can respond to the changing needs of residents, for instance, as children are born or leave the nest; as age or mobility bring changing requirements; or as homeworking patterns change.

Watch a short film about the project

Gatóo says: “Self-assembly and modular furniture have improved so many people’s lives. We’ve developed something similar but for walls so people can take total control of their interior spaces.”

“If you have lots of money, you can hire a designer and alter the interiors of your house, but if you don't, you're stuck with very rigid systems that could be decades out-of-date. You might be stuck with more rooms than you need, or too few. We want to empower people to make their spaces their own.”

̽��ֱ��team’s ‘rooms of requirement’ provide elegant, affordable solutions which can be built into the fabric of the building from its first design, or seamlessly retrofitted – avoiding the mountains of carbon associated with demolition and reconstruction.

Gatóo says: “We’re using engineered timber, which is affordable and sustainable. It's a natural material which stores carbon, and when you don’t need it anymore, you can make something else with it. So you are creating minimal waste.”

Gatóo and her colleagues are based in the ̽��ֱ��’s Centre for Natural Material Innovation, a world leader in research into innovative and sustainable uses of timber in construction.

̽��ֱ��team emphasises that their system could be used anywhere in the world, in workplaces as well as in homes, and the researchers have already had encouraging conversations with industry, including with affordable housing developers in India.

Gatóo says: “I’ve worked in development and post-disaster housing with NGOs in many countries around the world, always using sustainable materials. When I started my PhD, I wanted to merge making housing more affordable and social with technical innovation and sustainability. This is what our cities of the future need – caring for people and the environment at the same time.”

Implemented at scale, this innovation could change the construction industry for the better, empowering people to adapt their spaces to their needs while slashing housing costs and overcoming some of the hurdles which the construction industry must tackle to be part of a sustainable future.

Working with Cambridge Enterprise, the research team is seeking industry and policy partners to further advance product feasibility for industry-wide adoption.

̽��ֱ��project is supported by PLP Architecture, ̽��ֱ��Laudes Foundation, the Future Observatory and the AHRC Design Accelerator.

Cambridge architects have won a public choice award at the London Design Biennale for a prototype home constructed with flexible wooden partition walls which can be shifted to meet the changing needs of residents. ̽��ֱ��invention aims to reduce waste and carbon while also improving living conditions for those who cannot afford expensive refurbishments.

This is what our cities of the future need – caring for people and the environment at the same time

Ana Gatóo

Ron Bakker

Ephemeral exhibit at the London Design Biennale 2023

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Building from the ground up: participatory design in Kenya’s oldest slum

jeh98 — Wed, 05 Aug 2015 07:00:00 +0000

̽��ֱ��community of Mathare 3A, built along a small river valley in Nairobi, is located in one of Kenya’s oldest and largest slums. It is lacking in most basic services such as sanitation and electricity. There are few permanent structures, with most people living in temporary shacks made of wood and corrugated iron.

Now a team of Cambridge researchers and students has been working on a project under the UN-Habitat-coordinated Global Network for Sustainable Housing (GNSH) to build a community centre in the heart of this impoverished area, and they are doing so using a model that makes the community’s involvement central to the process – participatory design.

This is the first time that UN-Habitat has worked with a university on a project like this, and it is hoped that it will provide a scalable model for future projects with other communities and institutions.

Project Manager Dr Maximilian Bock, from the Department of Architecture, explains: “the aim of participatory design is not to change the rich culture that already exists in Mathare, but rather to understand it deeply enough to design a space that is useful to and reflective of the community.”

̽��ֱ��first residents started arriving in the Mathare Valley in the 1920s, and by 2012 the population was estimated at 188,000 – with around 1,500 living in the informal settlement of Mathare 3A. ̽��ֱ��Kintaco community hall currently consists of a temporary structure with a capacity for less than 100 people. At present, it is mainly used by the men.

Ana Gatóo and Elizabeth Wagemann, also from the Department of Architecture, have now produced construction drawings that will enable the residents of Mathare 3A to build a new, more useful community centre for themselves. ̽��ֱ��structure consists of replicable units so that, with some training, the residents will be able to learn quickly how to build the hall under the guidance of an onsite engineer.

One of the crucial steps in the redesign of the hall saw Gatóo travel to Mathare in January 2015. As Gatóo explains, “engaging with each sector of the community was essential to ensuring that the preliminary designs reflected the input of all those who would use the hall in different capacities and at different times of day.

“ ̽��ֱ��women who participated in the focus group commented that this was the first time they had been specifically asked for their input in the design process of a community construction project.”

With only a limited period in Mathare to find out what the community members wanted from their new facility, the team adapted the often time-consuming participatory design model into a very visual process. “Using wall charts, pictures, models and coloured stickers,” lead designer Elizabeth Wagemann explains, “we were able to find out what residents thought of other community centres, the potential risks to the hall, how they hoped to use the facility, and what skills they could contribute to constructing and managing it.”

“There are instances, for example in the neighbouring settlement of Kibera, where community construction projects aren’t used by the residents. ̽��ֱ��participatory design process is essential for fusing the community’s ambitions for the space with the material and organisational resources necessary to realise the project. Involving the community from the beginning is important in ensuring that, once it is built, they will manage, maintain, and above all make use of it,” says Bock.

Supported by the UN-Habitat programme, the project draws on the expertise of the Department of Architecture’s Natural Materials and Structures group where the Cambridge team is based. Led by Michael Ramage, the group focuses on adapting natural materials and traditional methods to contemporary architecture. ̽��ֱ��design team formed by Maximilian Bock, Ana Gatóo and Elizabeth Wagemann was also supported by Research Associate Thomas Reynolds, Masters students Bob Muhia, Katherine Prater, Anna Rowell and Thomas Aquilina, and undergraduate Chloe Tayali, who have each been volunteering around six hours a week on the project.

Bock explains how they have learned that local acceptance of the building materials is of great importance. “From an environmental perspective, wood is a good sustainable material, but among the local community in Mathare, wooden structures are seen as a fire hazard. In contrast, concrete buildings with multiple floors are seen as aspirational,” he says. “One of the challenges for us was to balance the need for environmental sustainability with the need for local acceptance.”

In their completed design for a 15x30m building, made out of gabions filled with local or recycled stone and a floor and roof structure made from bamboo, they have managed to match what the community had imagined as well as what the complex network of other stakeholders want.

One female resident of Mathare 3A commented: “I really like the design as it includes everything our community needs under one roof.”

̽��ֱ��team has also struck up a unique partnership with the Kenyan Forestry Services to provide the sustainable materials for around $20,000 instead of the team’s original estimates of $100,000. “ ̽��ֱ��design could serve as a model for other community centres using locally sourced sustainable building materials,” says Samson Mogire from the Kenya Forestry Research Institute.

As an experimental project, the team feel it has so far been a great success. ̽��ֱ��residents of Mathare are already very engaged and their feedback sessions have been lively with questions about the hall and the construction process. And now as the project moves from phase to phase, it also moves further into the ownership of the community.

Despite its size, Bock states, Mathare 3A has been identified as an area that has previously been overlooked when it comes to development initiatives. It is hoped that projects such as this one will draw attention and further successful development projects to the settlement.

Back in Cambridge, the team has learnt a lot to apply to participatory design projects in the future, and acquired experience designing with materials that will be important for future research. In two years’ time they will carry out an analysis of how the materials are performing and how the hall is being used to see what else can be learned from this process of building from the ground up.

̽��ֱ��project is also part of the EcoHouse Initiative, which drives sustainable urban development in the developing world. EcoHouse was funded by the AngloAmerican Group Foundation. ̽��ֱ��research has been enabled by the Higher Education Innovation Fund.

Inset images: video courtesy of Roadmap to Mathare; a participatory design session in Mathare 3A (Ana Gatóo); the design for the new community centre (Maximilian Bock, Ana Gatóo, Elizabeth Wagemann, Department of Architecture); Mathare 3A (Ana Gatóo).

In a landmark project with UN-Habitat, a team of Cambridge researchers has designed a community centre in one of Kenya’s biggest and oldest slums, and its future users are now raising funds to build it.

̽��ֱ��women commented that this was the first time they had been specifically asked for their input in the design process of a community construction project

Ana Gatóo

Mathare, Nairobi

̽��ֱ��text in this work is licensed under a Creative Commons Attribution 4.0 International License. For image use please see separate credits above.

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