Independent research · Netherlands
A study of Dutch residential property, built on public data.
Nordaragon is the research practice of an independent analyst based in the Netherlands. It exists to answer one question properly: what does a Dutch home actually cost, and what does it actually return — measured with open, official data, with the arithmetic shown.
- Open, official sources
- Every source named
- Arithmetic shown
What this is
The Dutch housing market is unusually well documented and unusually badly explained. Registries, statistics bureaus and energy databases publish most of what a buyer would want to know — openly, for free. Nordaragon reads it, and writes down what it says.
01 — Focus
Five questions worth measuring
These are the areas under study — each one a question the public record can answer, if you ask it carefully enough.
-
01
Price per square metre
The single most comparable number in property. Tracked by municipality and neighbourhood, so that two homes of different sizes can be compared at all.
-
02
Time to recover the investment
Gross yield expressed as years rather than a percentage: how long the rent a property could command would take to return its purchase price.
-
03
Neighbourhood comparison
National averages hide everything that matters. The interesting spread is between districts inside one city, not between provinces.
-
04
Energy label and running cost
A label is a registered fact, not an opinion. What it implies for monthly cost and for future renovation obligations is measurable.
-
05
The full cost of buying
Transfer tax, notary, valuation, advice and financing costs sit outside the asking price. Mapping them completely is half of understanding a purchase.
02 — Method
Show the arithmetic, every time
The core measure is deliberately simple enough to check by hand. A number nobody can reproduce is not research.
Illustrative figures, chosen to show the shape of the calculation — not a measurement of any real market, city or property. Rent per m² per year is monthly rent per m² × 12.
-
Public sources only
Every figure traces back to an official register or statistics office that publishes it openly. Sources are named, with the date of the release.
-
The calculation is visible
Inputs, formula and assumptions are stated alongside any result, so a reader can disagree with the assumption rather than the conclusion.
-
No personal advice
Nothing here is a recommendation to buy, sell, finance or invest. Personalised financial and mortgage advice in the Netherlands is a regulated activity, and this is not it.
03 — Foundation
The open record
The Netherlands publishes its property fundamentals as open data. These are the registers the research is built on — every one of them public, official and free to consult.
-
Registry
Kadaster open datasets
The national land registry: parcels, ownership boundaries and registered transactions.
kadaster.nl -
Statistics
CBS StatLine as open data
Statistics Netherlands: house price indices, transaction prices, rents and household data.
cbs.nl -
Buildings
BAG — addresses & buildings
Every registered address and building in the country, with surface area and year built.
data.overheid.nl -
Geodata
PDOK
The public geo-services platform: maps, boundaries and location services for Dutch government data.
pdok.nl -
Energy
EP-Online
The national register of energy labels — the official source for a property's energy performance.
ep-online.nl -
Valuation
WOZ-waardeloket
The publicly consultable municipal valuation of Dutch residential property.
wozwaardeloket.nl
Sources that restrict reuse in their terms are not used. Where a commercial platform's terms forbid automated collection, that platform is left alone — the open registers above are sufficient, and they are the ones that can be cited.
04 — Snapshot
One reading from the record
All three figures are for July 2026, as published by Statistics Netherlands
(CBS) on 21 August 2026 together with the Kadaster.
Read the release
This is a dated snapshot reproduced from the source, not a live feed, and it is not updated
automatically. Check the source for the current figure.
5 — Initiative
OneMillion NL
A parallel project under the same roof, for an English- and Spanish-speaking public. It documents the same research in plain language — how the Dutch buying process works, what the terms mean, and what the public numbers say.
Data analysis, not financial advice.
@onemillion_nl on Instagram06 — Contact
An open door.
If you work with property data, research or analysis in the Netherlands — or you are simply curious what the open registers can be made to say — a conversation is welcome.
onemillion@nordaragon.nl