Raise before you bidBROJul 18, 2026
Check a Dutch home before you bid
Fallen for a house? Take one more look.
Biedbril checks one address against seven public registries, where available, and turns what stands out into the questions to ask before you bid.
Enter a postcode and house number, or a street and house number.
- Free preview before you pay
- Seven registries, where available
- €20 per report, one-time
From the listing“Move-in ready, bright and spacious”
Raise before you bidThe ground sinks 3.2 mm a year
Worth askingThe erfpacht (ground lease) term ends in 2047
Take off the rose-tinted glasses. Put on your Biedbril.
At a viewing, you see the house at its best.
The listing and the viewing show what the seller wants you to see. Biedbril (Dutch for ‘bid glasses’) puts what the public registries know about the address beside it, with the source.
What you see at the viewing
- Characterful 1930s building
- Quiet living by the water
- Move-in ready
- Low service charges
- Made energy-efficient
What the registries say
- Municipal monument: renovating needs a permitKadaster · DSO · Jul 18, 2026
- Noise 58 dB, rated ‘moderate’Atlas Leefomgeving · Jul 18, 2026
- The ground sinks 3.2 mm a yearBRO · Jul 18, 2026
- The VvE (owners’ association) reserve fund is below the normKVK · Jul 18, 2026
- Energy label C, could reach A with improvementsEP-Online · Jul 18, 2026
Sample report
Signals become questions.
Every report opens with the pre-bid score and what stands out. Then come the signals, each with its source, and the questions to take to the viewing, the makelaar (estate agent) or the notary.
Voorbeeldstraat 123456
1015 CJ Amsterdam · built in 1931 · 104 m²
Fictional exampleCEnergy label
Pre-bid score
80 out of 100, Strong
What we found in 14 checks
- 1 before you bid
- 6 worth asking
- 7 good to know
- 0 with no signal
Worth askingKadasterJul 18, 2026
Mortgage: Yes
View the whole sample report
A fictional address, laid out like a real report. Signals come with their source.
How it works
One address, three steps.
Step 1
Enter an address
First you see, for free, what the registries release, such as year built, floor area and energy label, where available.
Step 2
We read the registries
Kadaster, BAG, EP-Online, KVK, DSO, BRO and Atlas Leefomgeving, where available. You can follow each step as we go.
Step 3
You get questions, not a verdict
Signals become questions for the viewing, the makelaar or the notary. Where we don’t know something, we say so.
7 official registries
Kadaster, BAG, EP-Online, KVK, BRO, DSO and Atlas — not scraped listings.
Each section names its source
See which registry a section came from and when it was fetched, so you can check it yourself.
€20 no subscription
Pay once for a single address. You'll create a free account before we generate the report.
Private by default
We only process what the report needs, and your report stays in your account.
A note from the founder
I built Biedbril after watching friends bid on Dutch homes with almost nothing to go on — a listing, a quick viewing, and a few stressful days to decide. The facts already exist in public registries; they're just scattered and hard to read. Biedbril brings them into one honest pre-bid report, so you walk in knowing what to ask. It won't replace a notary or a building inspector — but it means you're never bidding blind.
Pricing
One address, one price.
No subscription for buyers. If you check homes for clients every week, ask us about office pricing.
Individual
Most buyers start hereFor one home you are viewing, comparing, or nearly ready to bid on.
€20 per report
- Available source data, risk signals, and buyer questions
- AI-powered risk analysis
- Shareable report link
- Interactive property chat
- All data categories included
- Email support
Commercial guarantee, in addition to your statutory rights. Not what you needed, or did the full report not load after you paid? Ask within 14 days of payment and we refund you in full, also after delivery: email us or use the withdrawal form. Refunds are handled by hand, usually within 5 business days.
Office pricing
For advisors and teamsFor professionals who check properties with clients every week.
Contact usBuilt from available registries, public datasets and AI analysis. Data can be missing, delayed or wrong. Not a building inspection, valuation, or legal or financial advice.
Questions & answers
Frequently asked questions
What data sources does Biedbril use?
Biedbril uses available sources such as Kadaster, BAG, EP-Online, BRO, DSO, KVK, Atlas/Leefomgeving, and trusted providers such as Mapbox. The exact data can vary by address, so the report also shows what is missing or worth checking with a professional.
How accurate is the information?
We use source data where it is available and show it in context. Some sources update slowly or have access limits, so treat the report as a strong starting point, not legal, financial, or building advice.
How fast do I get my report?
Most checks are ready within minutes. If a source is delayed or unavailable, we show that clearly so you know what still needs attention.
Is my data safe?
Yes. We encrypt your data and only process what is needed to create and manage your report. You can ask us to delete your account and its data at any time.