A washing bay and other adjoining houses are said to have been demolished in the exercise, while a filling station in the area has been earmarked for demolition.
The demolition is being carried out by Municipal Chief Executive (MCE) of GA West Municipal Assembly, Mr Attorquaye Quaye.
Mr Quaye said the demolition exercise had become necessary following deadly floods which caused about 150 deaths in Accra Wednesday.
He said the exercise will move on to parts of Ofankor and Amansaman.
Experts have expressed the view that building of houses on waterway is a major cause of flooding in Accra