Mathare was inundated this month when the Mathare River, which runs through it, burst its banks after heavy rainfall, killing dozens.
The members claimed the timing of these arrests raises suspicion since they occurred amidst criticism by the Mathare Justice Center of the government's handling of the flood crisis.
The residents questioned the selective nature of the evacuations, pointing out disparities in treatment between slum dwellers and other residents facing similar risks.
Ian Henry Otieno family said he was sifting through mounds of rubble at the scene to recover any possessions that were spared the destruction.
The traders are angry with the government, accusing it of inadequate communication and a lack of options.
Changamwe is among the estates set to host the affordable houses, following Buxton, where construction is ongoing, and Likoni.
Reports indicate that the home was demolished to pave way for President Ruto’s affordable housing project.