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Mark Kirby

Mark Kirby

The Conversation

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NZ has a $2.5b building defect problem. Will self‑certification make it better or worse?

NZ has a $2.5b building defect problem. Will self‑certification make it better or worse?

Building defects and rework silently drain millions from construction budgets. Catching those mistakes earlier could be key to faster builds and...

28.07.2026 20

The Conversation

Mark Kirby

NZ’s $2.5 billion shoddy building bill: how to fix the ‘build now, fix later’ culture

Fixing defective buildings shaves billions off GDP and has stalled construction industry productivity for decades. A better quality management regime...

02.02.2026 10

The Conversation

Mark Kirby