The premier said making a move on their own would ensure the safety of their properties and avoid being on the line in case of floods as that would be to risk their lives.
The new appeal echoed statements by the Tanzania Metrological Agency (TMA) lately that a number of regions including Dar es Salam will receive heavy rainfall with likelihood of far reaching impact on daily lives.
Majaliwa made the remarks in the city yesterday at a forum for Rukwa and Katavi regions development stakeholders to discuss the 2000-2025 development vision for the two regions.
He said the public need to tap rain water for irrigation purposes to help beef up food security in the coming months.
Up to now more than 600 houses in Kinondoni municipality in Dar es Salaam have been demolished.
The demolitions began in Dar es Salaam in December and then suspended for 14 days to enable affected residents to vacate, many of whom failed to do so and were still there by the time demolitions proceeded, touching 600 housing premises in total.
In what seems to be a nationwide campaign against random construction especially in valley areas, more than 15,000 houses in Buguruni, Tabata, Segerea and Vingunguti have marked X and are on line for demolition at any moment.
In a different remark, premier Majaliwa directed regional and district commissioners to ensure that farming and livestock rearing are modernised in their areas, to reduce conflicts between farmers and pastoralists.
He similarly reminded traders in all walks of life to ensure that they pay the relevant taxes, which is vital in raising government income as the money is needed to complete development projects in various areas.
He said that the fifth phase government does not issue punitive tax orders to punish anyone, only seeking to ensure that everyone fulfils his duty to pay tax, so that the government solves various challenges facing the society.