This 360-metre rock wall between Rose Avenue and Coghlan Road and eight timber groynes was built last year for $3.35 million, as defence against increasing erosion. A report says the cost of mitigation against sea level rise “often exceeds the economic value of individual assets protected”, with the rock wall now causing further erosion east of the wall.
The spike in planning permit refusals is based on sea level rise of 0.8 metres b...
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