Outdated wiring of more than 20 years at Seri Perdana could pose a fire hazard if left unchanged, according to former premier Muhyiddin Yassin.<br /><br />Muhyiddin said the matter was among expert advice given in relation to renovations at the prime minister's official residence, aside from replacing old lighting and air conditioning systems.<br /><br />Commenting on the renovation costs of RM38.5 million, Muhyiddin said the bulk of the amount involve repairing physical damage to the building.