Blog
The maths behind the headlines.
Source-cited analysis of NZ property cashflow. New posts most Tuesdays.
22 Apr 2026 · 1 min read · Auckland / Yields
Auckland's median yield: 3.1%. The story behind the number.
Yields in Auckland sit at the bottom of the national table. Why the regional median is a screening filter, not a portfolio plan.
Read post14 Apr 2026 · 2 min read · Mt Eden / Worked example
The maths on a $1.2M Mt Eden bungalow.
A worked example: bond data, mortgage rate, rates, insurance. Every input source-cited; the levers that would shift the verdict shown on the result page.
Read post03 Apr 2026 · 2 min read · Interest rates / Cashflow
OCR vs the rate at the bank: why they aren't the same number.
Wholesale and retail rates are linked but loose. Why a cashflow test against the OCR tests the wrong number, and what to use instead.
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Weekly digest
One number, one chart, one link. Every Friday.
The figure that moved the cashflow picture this week, plain English, never more than five minutes to read.