Karen Building Collapse Caused by Substandard Materials

Nairobi Buildings Collapse Linked to Substandard Materials
The Nairobi County Government confirmed substandard materials caused the Karen building collapse on January 10, 2026.
Moreover, the tragedy claimed two lives and left seven others injured, raising serious concerns about construction safety standards.

County Executive Patrick Mbogo revealed contractors used timber gun tree supports instead of steel props for the slab. Additionally, he noted poor workmanship and inadequate formwork contributed significantly to the collapse.

Mbogo emphasized that architectural and structural plans had received approval in November 2024.
Furthermore, he assured ongoing investigations would provide additional updates as more information becomes available.

Emergency Response and Investigations
The collapse occurred at 5 pm along Ngong View Lane in Karen Ward, Lang’ata Sub-County.
Consequently, a multi-agency team including Nairobi County Government and Red Cross rescued injured workers and rushed them to hospitals.

Police reported the building had reached the first-floor level before the slab caved in, killing two builders instantly.
Moreover, Nairobi County, the National Construction Authority, and DCI launched investigations to establish the exact cause of the collapse.

Wider Concerns on Building Safety
The incident followed another collapse in South C estate less than two weeks earlier, which killed two people.
Additionally, the Architectural Association of Kenya linked such tragedies to weak enforcement, corruption, and substandard construction materials.

According to the National Building Inspectorate, only 15 percent of inspected buildings were structurally safe.
Alarmingly, 85 percent required major improvements or posed risks to occupants, highlighting urgent reforms in Kenya’s construction sector.