The authority said the incident involved a construction project that was not compliant with required standards at the time of the collapse.
In a press statement, the NCA said the building was a proposed mixed-use development located along Muhoho Avenue.
The site is near the South C Shopping Centre and Nairobi South Hospital, an area that hosts both residential and commercial activities. The plot is registered as number 68/1306 in South C Ward, within Lang’ata Sub County.
According to the authority, the project was registered with the NCA on November 8, 2023. However, despite being on record, the building did not meet compliance requirements when it collapsed.
The NCA did not immediately give full details on the specific areas of non-compliance but noted that the status of the project raised serious concerns.
The authority identified Abyan Consulting Limited as both the developer and the contractor for the project.
This means the same firm was responsible for overseeing the development and carrying out the construction works.
The NCA said this arrangement placed a heavy responsibility on the company to ensure that all safety and legal requirements were met.
The consultants involved in the project were also named.
Architect Gideon Chege Mwangi was listed as the architect, while Engineer Peter Kimani Kireu was responsible for structural engineering works. The quantity surveying services were provided by James Kirika Njoroge.
These professionals were expected to play key roles in ensuring the building was safe and constructed according to approved designs.
The contractor was registered under category NCA 4 for building works. The company’s sole director was identified as Yussuf Mohamed Yussuf.
The NCA explained that contractor registration categories determine the scale and complexity of projects a firm is allowed to handle.