Two-storey duplexapproval in Wollongong isn't straightforward, and that's an understatement. You're dealing with height restrictions, setback requirements, parking mandates, and council officers who've seen every attempt to squeeze extra space out of a block.

Building a duplex in Australia can run from about $550,000 to $1.3 million. Wollongong comes with its own cost quirks. After 25 years of building duplexes across the South Coast, I’ve seen one pattern repeat: most people underestimate the real price.