Engineers Raise Fresh Concerns Over Cracks at Karibu Homes in Athi River

Engineers have found signs of possible uneven foundation settlement in three cracked blocks at Karibu Homes in Athi River, while also raising concerns over poor stormwater drainage around the buildings.

Engineers from the Institution of Engineers of Kenya (IEK) inspected Blocks M, N and P in London Court and observed cracks that have continued to widen since they were first noticed in 2019.

In a statement issued on October 2, 2026, IEK said its preliminary visual inspection also found significant damp-related deterioration around parts of some external walls, with residents of several affected units having already vacated their homes.

Engineers Point to Possible Foundation Movement

IEK said the pattern of cracking observed in the three blocks was suggestive of “differential settlement”, where different sections of a foundation sink unevenly.

Engineers also raised concerns about how rainwater is being channelled around some of the buildings. Roof downpipes were found discharging close to foundations, while parts of the stormwater drainage system appeared poorly constructed.

“This persistent water accumulation can, over the years, contribute to weakening of the soil supporting the foundations,” IEK said.

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Damp-related damage was also visible around the lower portions of some external walls, according to the engineers.

However, IEK cautioned that its visual inspection should not be treated as a final finding on what caused the defects.

“IEK does not draw conclusions on the cause of the observed defects at this stage, until the necessary investigations and tests have been completed,” the statement said.

The findings come after concerns over cracks at Karibu Homes were reported in September, with affected homeowners raising questions about the safety of their apartments.

IEK Calls for Structural and Ground Tests

IEK has recommended destructive and non-destructive structural tests on Blocks M, N and P, as well as a comprehensive geotechnical investigation to assess the foundations and supporting ground.

Further technical checks are expected to establish whether the foundation systems are adequate, whether construction followed approved structural designs and whether concrete quality, reinforcement and construction methods met the required standards.

Professional supervision and quality control during construction will also be examined.

Pending completion of the investigations and any necessary repairs, IEK has advised that Blocks M, N and P remain vacant until repair and strengthening works are safely completed.

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Residents in other blocks have been urged to report new or widening cracks, sticking doors or windows and water pooling against walls to management and county authorities for assessment by a qualified engineer.

IEK said the situation underscores the importance of engaging qualified and licensed professionals throughout the design, construction, inspection and certification of buildings, warning that failure to meet applicable standards can put lives and property at risk.

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Cracks visible on a wall at Karibu Homes in Athi River.PHOTO/ Nation