Koudougou Central Market: A Masterclass in Earth and Vaults, Koudougou, Burkina Faso

Designed as a profound urban community project, the Koudougou Central Market is an Aga Khan Award-winning triumph of sustainable infrastructure. Crafted by Laurent Séchaud and the Swiss Agency for Development and Cooperation (SDC), the design utilized a highly participatory process to keep the market in its historic city center. Spanning 29,000 square meters, the project rejects imported concrete in favor of locally extracted Compressed Earth Blocks (CEB) and soaring vaulted arches, providing a naturally cooled, beautifully rhythmic commercial hub that serves over 1,800 vendors.

Empowering the Urban Fabric

In a predominantly rural country facing extreme dry and wet seasons, the Koudougou Central Market posed a unique design and implementation challenge. The mission was not simply to build physical infrastructure, but to improve the human spirit and socio-economic standing of the community.

Rather than imposing a top-down design, the SDC and the architects implemented a deeply participatory process. Following lengthy community discussions, it was decided to retain the original 27,750-square-meter site in the commercial and administrative zone, ensuring the new market would actively enhance the existing urban fabric and strengthen the neighborhood's commercial vocation.

The Vision: Rhythmic Grids and Open Plazas

The layout manages an incredibly high density of commerce without sacrificing breathability or visual appeal. The Dual Grids: The master plan relies on two simplistic, regular orthogonal grids. Rows of shops running east-west define the main alleys, while shops oriented north-south define smaller gathering places. The Vaulted Core: This grid is beautifully interrupted in the center by the main stalls zone, an open, vaulted space supported by a series of high arches that permit visual continuity across the market. Passive Climate Control: The juxtaposition of the two grids creates a special, rhythmic aesthetic. More importantly, this organization ensures excellent cross-ventilation and allows every single building to benefit from the shade cast by its neighboring structures, minimizing solar exposure.

Tectonics: Manual Earth Extraction

The innovative use of compressed earth blocks was intended to demonstrate both the aesthetic and environmental superiority of local materials over imported concrete. Hand-Pressed Earth: The primary construction material—earth—was extracted manually from a hill just two kilometers from the site. The raw earth was then compressed on-site using manual presses. Vaults and Domes: The market features a massive covered hall with space for 624 stalls, surrounded by 125 buildings containing 1,195 individual shop units (most averaging 6.20 square meters). The complex vault and dome construction was executed by local enterprises that had acquired specialized experience on previous regional projects.

The Living Building: An Economic Engine

The Koudougou Central Market proves that labor-intensive, localized architecture is a massive economic driver. Because the project avoided imported, mechanized concrete construction, it generated significantly more jobs for the community. The raw material was extracted by locals, and all blocks were made on-site at an astonishing rate of 1,000 bricks a day per worker. By utilizing stabilized earth, the project successfully revived the popularity of traditional construction in the region, boosting ongoing demand for these materials and securing long-term employment for the newly trained local labor force.

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