Questions, answered

Rent data questions, answered

Plain answers about New Zealand’s official rental figures — what they are, how they’re worked out, and how to use them. No advice, no verdicts, just the data explained.

What is market rent in New Zealand?
“Market rent” is the typical rent paid for comparable properties in an area. RentTrends shows the published median rent for each suburb, property type and bedroom count, drawn from bonds actually lodged with Tenancy Services (MBIE) — so it reflects real tenancies, not asking prices from listings.
How is the median rent calculated?
The median is the middle rent: half of the bonds lodged in that suburb, property type and size cost more, half cost less. It comes straight from MBIE’s rental-bond statistics. RentTrends never pools or derives its own figure — each number is the one MBIE published, shown with the count of bonds it rests on.
What is the difference between median and average rent?
The average (mean) adds every rent and divides by the count, so a few very high or very low rents pull it around. The median is the middle value and ignores those extremes, which makes it the more honest “typical” rent for a suburb. RentTrends reports medians and quartiles, never a mean.
How often is the rental data updated?
MBIE refreshes the bond data about monthly, roughly two months behind the latest complete quarter. RentTrends rebuilds from the newest official files each month; every figure is shown with the period it covers so you can see how current it is.
Why is a rent figure blank or marked “not published”?
MBIE suppresses any cell with fewer than five bonds to protect privacy, so a blank means the market for that property type and size was too thin to publish that quarter — that is information, not an error. The back-series and the wider all-rentals figure are usually still available.
Where does RentTrends get its data, and can I reuse it?
Every figure is official: MBIE’s rental-bond data (licensed CC BY 3.0 NZ) and Statistics NZ’s SA2-2019 suburb boundaries (CC BY 4.0). You can reuse any series freely, including commercially, with attribution — each chart has a CSV download of the exact figures shown.
Does RentTrends say whether a rent is fair or too high?
No. RentTrends shows where a rent sits against the published distribution — the median and quartiles for that suburb, type and size — and nothing more. It gives no verdict, advice or forecast; what a fair rent is remains a matter between the parties and, if needed, the Tenancy Tribunal.
How far back does the rent data go?
The quarterly suburb series run from 1993 to the latest published quarter, so most suburbs have a back-series stretching back three decades. Every chart lets you view the last 1, 3 or 5 years or the full history, and you can download the exact figures as a CSV.
Which suburbs and areas are covered?
More than 2,000 suburbs across New Zealand, defined by Statistics NZ’s SA2-2019 areas, each split by property type (apartment, flat, house, room and an all-types rollup) and bedroom count (from studio through 5+). Where a suburb spans several SA2 areas, RentTrends also groups them under an umbrella suburb page.
What do the lower and upper quartiles mean?
The lower quartile is the rent a quarter of bonds fell below; the upper quartile is the rent a quarter came in above. The middle half of tenancies sits between them, so a wide gap means a broad spread of rents for that kind of home and a narrow gap means they cluster tightly. MBIE fits these quartiles to the bond sample.
Are these asking rents or rents actually paid?
Rents actually paid. Every figure comes from bonds lodged with Tenancy Services when a tenancy begins, so it reflects agreed rents on real tenancies — not the asking prices advertised on listing sites, which tend to run higher.
Why does a suburb’s median jump around from quarter to quarter?
In smaller suburbs only a handful of bonds are lodged each quarter, so the mix of homes changes and the median can swing sharply — a quarter with more large houses reads higher, a quarter with more studios lower. That movement is a feature of thin data, not an error, which is why RentTrends always shows the lodged-bond count beside each figure.
How is this different from the tenancy.govt.nz Market Rent tool?
Both draw on MBIE’s bond data, but on a different basis. The Market Rent tool reports a trailing six-month window of bonds; RentTrends reports each figure per quarter, by tenancy start date, which is what makes the long back-series and the quarter-on-quarter trend possible. The two won’t match exactly because they count different windows.
How many bonds are behind a figure, and when is it reliable?
Each figure shows the number of bonds lodged that quarter — its sample size. Fewer than about 20 is flagged as indicative, under 50 is moderate, and above that the figure is well sampled. Counts are randomly rounded to base three for privacy, and any cell with fewer than five bonds is suppressed entirely.

Still curious where the numbers come from? See About the data for the sources, basis and lag, or Check your rent to see where a rent sits against the published quartiles.