Know before you bid.
Keyday reads the seller's dossier and official Dutch registers — Kadaster, BAG, WOZ, EP-Online. You get one plain-language answer: is the price fair, what could go wrong, and what it'll actually cost you.
Free to join. No card required.
Bidding blind is expensive.
In a fast market you get maybe a week between viewing and bidding — and the seller's dossier is thirty-plus pages of Dutch legal boilerplate.
What one missed clause can cost you
An erfpacht (ground rent) step-up in a few years. A VvE reserve fund that won't cover the roof. A foundation note buried on page 24. Any one of these can turn a fair price into a bad deal — after you've already signed.
Your two options today
Read it all yourself — hours of manual lookups across registries, in a language you may not fully read, under a bid deadline.
Hire an aankoopmakelaar — solves it, but adds a person to coordinate with, a fee, and a few more days you often don't have.
One report. Three answers.
Is the price fair?
An independent estimate of market value, built from official registry data and a professional AVM — not just the seller's asking price.
What could go wrong?
Erfpacht, VvE reserves, foundation notes, energy label — the dossier clauses that change your bid, read for you and translated into plain English.
What will it actually cost?
The full cost to buy — transfer tax, notary, advice, running costs — laid out before you commit, not discovered after.
From listing to report in minutes.
No account setup, no forms to fill in twice — just an address.
Paste the address or listing link
A Funda or Pararius link works — Keyday resolves the address for you.
Keyday reads the registers and the dossier
Kadaster, WOZ, BAG, CBS and the seller's move.nl documents, checked automatically.
Get one plain-language report
Value, risks, area, and the full cost to buy — ready before your next viewing.
Before you join
Every figure comes from an official Dutch registry — Kadaster, the WOZ-waardeloket, BAG, CBS, or the Leefbaarometer — and the report shows you the source next to the number. Nothing is a scraped guess.
Keyday isn't legal or financial advice, and it doesn't replace your notary. What it does is give you the independent read most buyers only get by hiring an aankoopmakelaar — in minutes, before you decide whether you need one at all.
We're onboarding buyers one at a time right now. Leave your email and we'll reach out personally to get you set up — no automated queue.
Join the waitlist
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We'll be in touch by email once we're ready for you.