South-east flood modelling based on maths and physics is being derailed by inconsistent council interpretations of state planning policy.

Updated flood maps for two local government areas have revealed how many homes will be at risk of flooding should they face future significant rainfall events.

Flooding isn’t just a risk for those living near hurricane-prone coastlines or riverbanks—floodwaters can rise almost anywhere, including areas where homeowners least expect it. Even a single ...