Spotlight on David Lea and low carbon design

 

When we build we reveal our vision of the future.” These words embody David Lea’s approach to designing buildings that are in harmony with the natural world. Today, this has never been more important and here at RISE Design Studio we will continue to take inspiration from Lea’s work, long after hearing the sad news of his death earlier this year.

RISE Design Studio David Lea

Beautiful buildings, minimal harm

At the heart of Lea’s long career as an architect was his desire to create low-impact buildings. Many of his projects were built mainly from natural products, including timber, hempcrete, locally quarried stone and lime render. His last major project included an auditorium built with seven metre high walls of rammed earth. This now renowned project – the Wales Institute for Sustainable Education (WISE) in mid-Wales – comprises a range of accommodation and workshops, with pools of water, paved terraces and timber-slatted galleries interspersed throughout. This keeps the inside spaces in ‘constant dialogue’ with the outside world with an almost Japanese feel.

The WISE centre, like many of his other projects, were based on design principles that embrace creativity, minimise waste and retain an element of simplicity that complements the natural world. In his first important work – a sheltered housing scheme in Surrey – Lea implemented a system of easily built timber details so as to avoid any wasteful cutting. In later phases of the same project, he incorporated lime-rendered wall finishes, a method that he used in combination with locally quarried stone in his other work.

Growing concern for the natural world

As Lea progressed through his career, his concern for the natural world grew and he became increasingly restless with life in London. Relocating to Snowdonia in North Wales, he focused increasingly on rebuilding his own property and cultivating his land as part of the wider ‘back-to-the-earth’ movement.

While in Wales, and through his work at the WISE centre, he was able to showcase his use of hempcrete – a mixture of hemp and lime – as a sustainable alternative to concrete. Students and staff continue to experiment with this material at the Welsh School of Architecture and there is growing interest and use in hempcrete in a wide range of architecture, construction and scientific circles.

An activist at heart

Most inspirational is the way in which Lea instilled in his students a crucial need to think about the future that they build. His appreciation of changing light, combined with creativity, simplicity and responsibility towards the environment, was distilled into the minds of so many architects who now have the opportunity to learn from and carry on his important work.

Francis Kéré, materiality and place

 

In 2022, Francis Kéré was awarded architecture’s highest international accolade, the Pritzker Prize. Kéré’s many projects show us the power of materiality rooted in place, which is something that we emphasise through the use of local materials in our architecture and design work.

Francis Kere RISE Design Studio

Against the odds

Kéré was born in a remote village in Burkina Faso, with no electricity, running water or a local school. He left his family at age seven to study at a city school, where he later trained as a carpenter. After receiving a scholarship for an apprenticeship in Germany, he went on to study architecture in Berlin. Despite being far from home, one of his first projects was to design a school for the village he grew up in, in collaboration with members of the community and using local materials. For this, he was awarded the Aga Khan Award in 2004 and the Global Award for Sustainable Architecture in 2009.

Innovative use of local materials

The Burkina Faso school project included the use of clay-earth bricks and suspended, corrugated metal roofs, to encourage stack ventilation for students learning in a hot, arid climate. By placing the overhanging metal roofs like this – rather than in the common way that makes houses hot inside – cool air is drawn in through the building’s windows and hot air is then released through holes in the ceiling. The innovative use of local materials and adaptation of traditional building techniques, combined with insight and involvement from the community, have been central to Kéré’s renowned approach.

Impact and investment

As awareness of his work grew, Kéré received widespread recognition for his experimentation with different materials to create cool and comfortable buildings in the hot African climate. He has also managed to raise funds for several projects focused on improving schools and other educational buildings for Africa’s young people, often involving buildings’ users in its construction, as he did in his home village.

Continuing to experiment with natural alternatives to air conditioning, one of his most recent projects – a technology campus in Kenya – uses wind towers shaped like termite mounds. In another project – a secondary school in Burkina Faso – he used local, laterite stone as the main building material. By orienting the building east to west, the amount of direct solar radiation on the walls was reduced, and a sharply protruding metal roof (like that used in the school in his home village) creates a large amount of shade.

Other projects in Africa have used a modular approach, with local people employed in the construction of modules, using local materials such as clay, laterite, cement bricks, gum wood and loam. Once again, large walls and impressive overhanging roofs remove the need for air conditioning in most buildings – a vital outcome in the changing climate and in communities without electricity for air conditioning, or the means with which to pay for powering cooling systems.

Inspiration

As the first black architect to win the Pritzker Prize in its 43-year history, Kéré acknowledges that he hopes to inspire young people in Africa to realise that paths like the one he has taken are open to them too. He continues to draw inspiration from local environments and there is a sense that his most impressive works may be yet to come.

Spotlight on Lina Bo Bardi

 

Recycling or converting buildings came naturally to Italian-born Brazilian architect, Lina Bo Bardi. Inspired by the use and reuse of basic materials, she devoted her working life to engaging with every facet of culture and designing ‘people-friendly’ buildings. Described as “the most underrated architect of the 20th century”, it is pleasing to see her finally receive the attention she deserves. We take inspiration from Lina Bo Bardi here at RISE Design Studio, particularly her respect for authentic objects and how to preserve and celebrate them in the home.

RISE Design Studio - Lina Bo Bardi

Buildings flowing with the natural environment

In 1951, Bo Bardi created the ‘Casa de Vidrio’ in the rainforest surrounding São Paulo. An early example of the use of reinforced concrete in domestic architecture, she found a Brazilian context for the Italian modernism she was trained in. The landscape ‘flows’ underneath the building and the main living area is almost wholly open, apart from a courtyard that allows the trees in the garden to grow up into the heart of the house (perhaps a source of inspiration for Sverre Fehn’s Nordic pavilion). This celebration of the local environment is a theme that runs through her work.

Engaged public places

Bo Bardi’s designs were used in the the Solar do Unhão cultural centre in Salvador, and the Museum of Art, the Teatro Oficina, and Centro de Lazer Fábrica de Pompéia in São Paulo. In what she termed ‘poor architecture’, she sought to design public spaces that embodied a simple form of monumental architecture. The São Paulo Museum of Art is formed from ‘raw and efficient’ pre-stressed concrete, allowing unobstructed views to the lower-lying parts of the city.

She expertly restored buildings in a manner which neither pandered to nostalgia nor ignored context – the restoration of a 17th century sugar mill into the Solar do Unhão left the colonial exterior intact, with a modern staircase added. This reflected her belief that a museum should be a place for education – an active site of knowledge rather than a mausoleum of the past.

When she was commissioned in the 1980s to turn a burnt out office building into a theatre, she designed the new space almost completely out of painted scaffolding. The intense theatre space is designed to make the members of the audience feel as if they are engaged with the act on the stage.

Simplicity and the historical present

Lina Bo Bardi also designed furniture and she often used plywood and native Brazilian woods in her design. Wanting each object to display its own ‘natural logic’, her designs embodied simplicity and reduction and rawness of material.

Bo Bardi’s work has become much more widely acknowledged in recent years and support has grown for the proper preservation of her buildings. In a lecture at the University of São Paulo in 1989, she was asked to describe her ideas for the preservation of historic buildings. She replied that she sees no such thing as ‘the past’ in architectural practice. Whatever still exists today is what she termed ‘the historical present’ – you have to preserve the typical features and characteristics of a time that is part of our human heritage.

Kitsungi – the art of repair

 

Celebrating the beauty of a naturally imperfect world is a tenet of our work here at RISE Design Studio. By embracing impermanence and accepting that we are always in a state of flux, it becomes easier to appreciate what we have, rather than compare ourselves to others. It is this mindfulness and ‘living in the now’ – with all its imperfections – that we try to capture in our work. An important influence on our approach is the Japanese art of kitsungi – ‘golden repair’ – which respects the unique history of an object.

Reclaimed bricks RISE Design Studio

An accidental art form

It is thought that kitsungi was developed in the 15th century when a Japanese shogun broke his favourite tea bowl. He was disappointed that the repair involved stapling the pieces together, which left the bowl looking unattractive. Instead, local craftsmen filled the crack with a golden laquer. This made the bowl more unique and valuable, and prompted a new style of repair. As the style developed, the lacquer was likened to natural features like waterfalls, rivers, or landscapes.

The need to accept change

We often feel regret when something breaks or is wasted. For the Japanese, this is ‘mottainai’, a feeling that dates back to the original era of kitsungi and remains present in contemporary Japanese environmentalism.

In London, we are tackling the challenge of developing a circular economy to support net zero targets – mottainai and kitsungi can provide us with the inspiration we need. In our ‘throwaway culture’, we often miss opportunities to transform broken or used objects into something new, perhaps even making those objects more rare and beautiful than the originals.

This is the essence of resourcefulness – making the most of what we already have (or what already is) and highlighting beauty alongside any flaws. The perfections and imperfections are what gives our surroundings a story and meaning.

Embracing the past in the home

What does this mean at home? It can include choosing authentic furnishings that create a lived, harmonious space. It might also mean sourcing used furniture and allowing each scratch to add to the narrative of an item’s history. It might mean repairing walls, floors and external materials to reflect the history of the building and the changes it has seen through the years. Sourcing local or reclaimed materials might also help to root the home in its local environment and landscape.

Imperfections are gifts

The art of kitsungi is not only about objects – it is also about how we live our lives. It helps us to realise that we, like the tea bowl, are all fallible. We heal and grow, and we often survive emotional blows and live to tell the story. However, it can be hard to admit our failures and accept that bad things can happen. If we are to learn something personal from the local craftsmen who repaired broken items with gold, it is that imperfections are gifts to be worked with.

We take pride in working with imperfections in our projects, whether those be in buildings with a story to tell, with materials that reflect the local landscape, or with furniture and other fittings that have existed for several generations.