Built Too Fast, Planned Too Late: Inside Nairobi’s Flooding Crisis

It’s the rainy season, and like every year, there’s a period of heavy rainfall. This year, however, feels different. The downpour has been unlike anything previously experienced in Nairobi and its surrounding areas. From major highways being completely submerged to entire estates filling up with water, and homes suffering damage as rainwater enters and destroys property, the impact has been widespread.

Compared to last year, the water almost seems more aggressive. Areas that didn’t previously experience flooding are now affected. And this has left many residents asking the same question: are the rains heavier than before, or is our drainage system simply failing us?

The truth is, there has been a significant increase in development across many of these areas. Places that were once sparsely populated are now home to standalone houses, gated communities, mixed-use developments, and apartment complexes. Population density has increased far beyond what the original infrastructure was designed to support.

And as populations grow, it becomes essential to expand and upgrade supporting infrastructure and amenities to match that demand. When that doesn’t happen, the consequences are almost inevitable. Over time, residents begin to experience unreliable water and power supply, sewage system failures, strained road networks, and when it rains heavily, flooding becomes part of the pattern.

So the situation in Nairobi and its surrounding areas is not just about overcapacity. It’s about planning, enforcement of building codes, infrastructure investment, and long-term urban design. Was this avoidable in the first place? And more importantly, is there a way to fix it?

Let’s get into the nitty gritty.