What we know so far: Sinking Mombasa building demolished - The Standard
Controlled Demolition in Mombasa
An 11-story building in Mombasa, Kenya, has been demolished in a controlled explosion orchestrated by the Kenya Defence Forces (KDF). The building, located at Kilifi Corner along Abdel Nasser Road, was deemed unsafe and sinking. The demolition was preceded by evacuations of most residents, with authorities aiming for minimal disruption and casualties.
Impact and Precautions
Authorities suspended activities within a 1.2-kilometer radius, including temporarily closing Nyali Bridge. Emergency teams, including fire engines and ambulances, were on standby. A loud thud was expected during the demolition, with an estimated one hour for dust to settle. Security was reinforced by various agencies, including the National Youth Service (NYS), Kenya Army, Kenya Wildlife Service (KWS), and National Police Service (NPS).
Authorities' Statements
- Mombasa Governor Abdulswamad Sheriff Nassir confirmed that most residents had evacuated and that the operation was expected to restore normalcy in the afternoon.
- Mombasa County Commissioner Mohammed Noor assured residents of their safety and urged patience regarding traffic disruptions.
Significance
This demolition marks a significant event in Mombasa, highlighting concerns about construction standards in rapidly developing areas. The controlled explosion is considered one of the most high-profile in the city's history.
The condemned 11-storey building at Bondeni in Mombasa County on April 9, 2025. [Courtesy]
The demolition of an 11-storey building located at Kilifi Corner along Abdel Nasser Road in Mombasa, being handled by the Kenya Defence Forces (KDF), has started.Â
Mombasa Governor Abdulswamad Sheriff Nassir, speaking at the site this morning, said the building’s fall is expected to have an impact, but no casualties are projected owing to evictions leading to today’s exercise.
Although most residents had vacated ahead of the demolition, a few were still leaving as the exercise started Tuesday morning.
 “We thank Mombasa residents for their cooperation. Majority have temporarily vacated, and we remain on course to restore normalcy by this afternoon,” said Governor Nassir.Â
Mombasa residents at Marikiti waiting for the bombing of the condemned 11-storey building on April 9, 2025. [Kelvin Karani, Standard]
“We will likely hear a loud thud. This is a controlled demolition, so we don’t expect much impact.”Â
The operation is expected to last eight hours.
Authorities estimate it will take about an hour for the dust cloud to settle once the structure collapses.
Activities within a 1.2-kilometre radius of the building have been suspended.Â
Nyali Bridge, a key link in and out of Mombasa Island, has also been closed for the duration of the exercise to prevent accidents.
Emergency teams, including fire engines and ambulances, have been deployed and remain on standby.Â
Security has been reinforced by personnel from the National Youth Service (NYS), Kenya Army, Kenya Wildlife Service (KWS), and the National Police Service (NPS).
Mombasa County Commissioner Mohammed Noor assured residents of their safety, noting the multi-agency coordination.
“We request those who were evacuated to wait for our communication on when to go back to the buildings. We also urge patience from those who will be stuck at various traffic points,” said the commissioner.
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The building’s demolition marks one of the most high-profile controlled explosions in Mombasa’s history, coming amid growing scrutiny over construction standards in rapidly urbanising areas.
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