Nairobi County Starts Forcefully Evicting Residents & Demolishing Buildings After Floods In CBD
Geoffrey Mosiria, Nairobi’s Chief Officer for Environment, raised concerns about the city’s flooding, attributing the problem primarily to buildings erected on the county’s drainage infrastructure.
Viral Tea Ke Writer 
The Nairobi County Government has announced new directives following heavy rains on Sunday, May 11, which left several major roads in the capital and surrounding areas impassable.
Geoffrey Mosiria, Nairobi’s Chief Officer for Environment, raised concerns about the city’s flooding, attributing the problem primarily to buildings erected on the county’s drainage infrastructure.
Mosiria urged motorists to remain cautious during the rainy season and warned city landlords that strict action would be taken against any buildings obstructing water flow in the county’s drainage systems.
"We issued a notice for the removal of structures from the drainage systems. With the growing population, land is covered by structures, so most of the water goes to the drainage systems," the Chief Officer of Environment observed.
Flooded roads across Nairobi CBD after heavy rains on May 11, 2025. /X
"If you have constructed on top of drainage systems. Remove them before we remove them without giving a notice."
Mosiria also warned landlords who had extended their buildings onto drainage systems, stating that such actions are illegal as they encroach on government property.
In a separate advisory to developers, the county official issued a 30-metre safety directive for those residing near riparian land, urging them to move away from high-risk zones to prevent potential loss of life.
"To residents living near riparian land, please move at least 30 meters away from both sides of the river. We do not want to lose any lives. Failure to comply will result in appropriate action being taken to relocate you, in order to safeguard your well-being," stated Mosiria in part.
"Those who have constructed structures on top of drainage systems are hereby directed to remove them immediately. A notice had already been issued to that effect, and the County Government will not hesitate to arrest and take legal action against anyone who fails to comply."
Mosiria also urged Nairobi residents to help the county government identify areas with illegal structures blocking drainage systems, which are contributing to flooding in some estates. To do so, they have been encouraged to report such cases by dialling 1508.
On Sunday, a heavy downpour in the afternoon hours hit Nairobi County, with videos and photos seen by Viral Tea showing several roads in the Central Business District (CBD) completely flooded, making it impossible to cross the streets.
Earlier in the day, a wall collapsed at a construction site on Suswa Road in Parklands, trapping several workers. As of the time of publication, the status of some of those workers remained unclear.
On April 22, 2025, in Mathare Phase 4, tragedy struck when a wall collapsed during Monday night’s heavy downpour, killing three people. Among the victims were a mother and her two children, who reportedly died beneath the rubble.
Nairobi Governor Johnson Sakaja recently addressed the ongoing flooding challenges in the city, attributing the problem to outdated drainage systems originally designed to handle only light, seasonal rainfall.
Last year, scores lost their lives and hundreds were displaced during the April flooding, and nothing has been done to address the issue despite Sakaja's promises.
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