Stand in front of certain new buildings in Dakar and the first thing you notice is the texture. Courses of earthen brick project from the facade in fine horizontal ridges, like corduroy woven at the scale of a house, and as the sun moves each ridge casts a thin blade of shade onto the wall below it. The building is shading itself, all day, with nothing but its own geometry. The walls are the colour of the ground they came from because they are the ground they came from.
The signature belongs to Worofila, a young Dakar architecture studio that has become one of the most closely watched earth-building practices on the continent, its work now stretching from private homes to train stations to a collaboration with Francis Kéré himself. At its head stands Nzinga B. Mboup, a Senegalese architect who asks a question that sounds simple and lands like an indictment. Why did we ever stop building with earth? She has put the question to clients, officials, and audiences across three continents. Nobody has given her a good answer, because there is none. There is only a history, and her career is the argument against it.
The City Concrete Built
Dakar is one of Africa's great cities, and like most of them it wears a concrete skin. The material arrived with colonial rule and stayed for the same reasons it spread everywhere on the continent. It is cheap at the point of purchase, fast to pour, easy for governments to procure at scale, and it carries the borrowed prestige of the cities that colonized ours. Earth, the material West Africans had refined for centuries, was rebranded as the stuff of villages and poverty, something to graduate away from.
The bill for that rebranding arrives every afternoon. Concrete drinks in the tropical sun and radiates it back into bedrooms all night, so the city hums with fans and air conditioners fighting the very walls that hold them. The construction sector now accounts for roughly a third of global carbon emissions, and Africa's building boom is on track to pour more of the same. Meanwhile the old earthen buildings of the region sit quietly through the heat, cool without a single machine, waiting for someone to notice.
A Practice Named After a Street
Mboup noticed. Born in Senegal and raised across the continent, she watched as a child what colonial urban planning had done to African cities, and the observation never left her. She trained at the University of Pretoria, worked in Johannesburg, took her master's degree in London, and put in time at Adjaye Associates before coming home to Dakar. In 2017 she and French architect Nicolas Rondet, newly arrived in Senegal, threw themselves into a government competition for a bioclimatic regional office, a two-month plunge into the technical depths of earth and fiber construction that set the course of everything after. The practice they went on to found took its name from the street in the old Fann-Hock neighbourhood where their office stands, a small declaration that architecture should be rooted in the place that raises it.
Worofila is now a small team with an outsized portfolio. Homes in Sendou and Ngor. Sixteen stations for Dakar's new regional train line. An experimental eco-pavilion for Senegal's environment ministry. The gallery and garden of the French Institute. When Kéré Architecture needed local partners in earth for the Goethe-Institut Dakar, the building we covered earlier in this series, it was Worofila at the table. International recognition has followed, from Architectural Record's Design Vanguard to invitations across Europe and the Americas, for a practice whose entire method is refusing to import what the ground already provides.
Earth, Reeds, and Vaults
The Worofila toolkit reads like a recovered inventory of West African common sense. Walls rise in compressed earth blocks, pressed from clay-rich soil, whose sheer mass swallows the day's heat and releases it slowly through the night. Ceilings and floors span as self-supporting vaults of mud brick, an ancient structural trick that carries weight through pure geometry and strips steel and cement out of the building's bones. And then there is the reed.
Typha is a cattail that has choked the Senegal River valley for decades, an invasive green tide that clogs waterways and frustrates farmers. Worofila and its collaborators looked at the pest and saw a product. The reed's stem is honeycombed with tiny air pockets, which makes it a superb natural insulator, so the studio weaves it into wall panels, lays it into ceiling mats that soften sound, and mixes it into adobe. A plant the region spends money fighting becomes the material that keeps its buildings cool, the same reversal Francis Kéré performed with despised eucalyptus in Gando. Across this series the lesson keeps repeating. What Africa calls waste is very often material wearing a disguise.
The Question With No Good Answer
What separates Mboup from a builder with good techniques is that she studies the city as closely as the wall. She has co-authored two research projects, Dakarmorphose and Habiter Dakar, tracing how the capital's houses and neighbourhoods actually evolved and how its people actually live, and she has curated international programs asking what the material heritage of African cities can still teach. Her question about earth is not nostalgia. It is a researcher's challenge to an assumption nobody ever justified, the assumption that development must arrive in a material that punishes the climate it lands in.
The honest answer to her question is uncomfortable. We stopped building with earth because someone else redefined what progress looks like, and we kept their definition long after they left. The walls never failed us. The story about the walls did.
The Answer Under Construction
She carries a fitting name for this fight. Centuries ago, another Nzinga spent her life refusing a foreign power's terms, and the tradition of African women leading from the front did not end with the warrior queens. It moved into new arenas. Today one of its fronts is the building site, where a generation of women architects across the continent is dismantling, brick by pressed brick, the idea that Africa must build like somewhere else to count as modern.
Worofila's next projects point at the future this series keeps finding. A gallery in Benin City raised in the ancient cob technique of the Benin Kingdom. A training centre in Sebikotane to teach sustainable construction, so the knowledge multiplies through hands the way it did in Gando. The buildings are the argument, and the argument is winning converts one cool interior at a time.
Why did we ever stop building with earth? Keep asking, and the question changes shape. It stops being about the past and turns to face the decades ahead, when Africa will build more than any place on Earth. The answer to what we should build with has been under our feet the whole time. Now it is going back up in walls.
This article is part of Building Africa, an Africa Rebirth series on the continent's architectural traditions and climate-sensitive building solutions for the Africa of today. Based on original reporting by Shav Ngah (@shavnyuyngah). Worofila is led by Nzinga B. Mboup and Nicolas Rondet in Dakar, Senegal. Images courtesy of Worofila.
