Otunba Olumide Osunsina, the Managing Director of Megamound Investment Limited, Lekki, has called on real estate developers to take necessary steps to forestall any reoccurrence of building collapse in the state. Receiving a delegation of Executives of Real Estate Developers Association of Nigeria (REDAN), South-West Zone during a courtesy visit to his Lekki office, he advised that a construction work must be insured to forestall building collapse.