Why the numbers hold
The evidence base and the calibration behind it, published so that anyone can check the claim rather than take it.
- Official grounding: Built on the National Land Authority register and its recorded transfers, not on scraped asking prices.
- Calibrated accuracy: Error is measured per listing against recorded transfers and published with the estimate, not assumed once and inherited.
- Early indicators: Recorded transfers move before asking prices do, so a shift shows in the register a quarter before it reaches the market.
Research
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