Rethinking African Cities: A Human-Scale Approach to Urban Infrastructure

African cities are growing faster than any urban settlements in human history. By 2050, the continent will be home to an additional 950 million urban residents — more than the entire current population of Europe. The infrastructure decisions made over the next decade will shape the quality of life, economic opportunity, and environmental resilience of those cities for generations. And yet, the dominant model of urban infrastructure investment in Africa remains dangerously misaligned with the realities on the ground.

The Scale of the Challenge

Drawing on our urban planning work across 14 countries — from Accra to Nairobi, Kigali to Muscat — a consistent pattern emerges: the cities growing fastest are the ones least prepared for that growth. Road networks, water systems, sanitation, public transport, and digital infrastructure are routinely overwhelmed. The urban poor, who make up the majority of new urban residents, bear the largest burden.

The financing gap is real. The African Development Bank estimates the continent needs $130–170 billion per year in infrastructure investment to meet demand. Current public funding covers perhaps a third of that. But the problem isn't only capital — it's also design philosophy, governance, and a persistent tendency to import solutions that don't fit the context.

"The cities that will thrive in 2050 are not those that built the biggest roads — they're the ones that designed infrastructure around how people actually live."

The Mega-Project Trap

Large-scale infrastructure projects — expressways, metro systems, satellite cities — have an obvious appeal to governments: they're visible, bankable, and politically legible. But the track record of mega-projects in the African urban context is mixed at best. Many have been built without adequate connection to existing neighbourhoods, without affordable access for ordinary residents, or without the maintenance capacity to sustain them over time.

We've observed a recurring pattern: a gleaming new ring road is built on the city's periphery, but the informal settlements that house 60% of the population remain unconnected to it. A new bus rapid transit corridor runs through wealthier neighbourhoods but doesn't reach the areas with the highest commuting burden. The infrastructure exists — but it doesn't serve the people who need it most.

What Human-Scale Design Actually Means

Human-scale urban design isn't a rejection of ambition — it's a recalibration of what ambition should target. It means asking, before any project is scoped, who will actually use this infrastructure, how, and at what cost to them. It means designing streets that are safe for pedestrians and cyclists, not just cars. It means building markets, schools, and health centres within walking distance of homes, rather than concentrating services in central business districts accessible only by private transport.

In practice, this approach tends to produce infrastructure that is less photogenic and more functional: better-maintained local roads rather than showcase motorways; community water points that actually work rather than treatment plants that don't; distributed energy solutions rather than centralised grids that fail during peak demand. These aren't glamorous. But they change lives.

Participation as Infrastructure

One of the most consistent findings from our field work is that participatory design — genuinely involving communities in planning decisions — doesn't just improve social outcomes; it improves technical ones too. Communities know where flooding recurs. They know which paths people actually walk. They know where informal markets assemble and why. That knowledge is infrastructure. Ignoring it produces plans that look good on paper and fail in execution.

The barrier to participation isn't usually community capacity — it's institutional willingness. Government planning departments, often under-resourced and under time pressure, find consultation processes inconvenient. Donors pushing projects to disbursement deadlines don't build in the time for genuine engagement. Changing this requires advocacy, yes — but also practical tools that make participation faster and less burdensome, not more so.

What Governments Can Do Now

The good news is that African governments are not starting from zero. There is a growing body of urban planning practice on the continent that works — from Medellín-inspired cable cars in steep-terrain cities, to incremental neighbourhood upgrading programmes in East Africa, to decentralised water management in the Sahel. The challenge is learning from these successes faster and scaling what works.

We would argue for three immediate priorities: first, require human-scale design assessment as part of all public infrastructure appraisals; second, invest in local planning capacity rather than perpetually outsourcing to international consultants; and third, fund community-level infrastructure at scale — recognising that the cumulative impact of thousands of well-designed local improvements will outweigh a handful of showcase mega-projects every time.

The cities Africa builds in the next twenty years will either entrench inequality or challenge it. The choice, to a surprising degree, is still open.