Check any Dutch home before you bid.
Paste the Funda link of the home you’re considering. In about three minutes you have a verdict, the red flags, a market value with an opening and maximum bid, and your questions for the makelaar.
No home in mind yet? Find the neighbourhood that fits your budget
Property report
Keizersgracht 312
Amsterdam · 1016 EX
groundwerk Verdict
Data 72%Good location but older construction requires further foundation inspection.
Market value around €485,000. Don’t bid higher without a foundation report.
Strengths
Data confidence 72% — limited VvE documentation available.
From the piles to the roof
Where a report looks, drawn on a canal house. Pick a point.
Wooden piles, built before 1970, never inspected. Ask for the foundation report before you bid.
BAG and foundation data
Foundation: Wooden piles, built before 1970, never inspected. Ask for the foundation report before you bid.
What you’ll know before you bid
One report per home, built on the listing and 20+ official sources. The neighbourhood included: safety, schools, noise and transport.
The examples are from an illustrative report on a canal house, not a real home.
A clear verdict
Recommended, caution or not recommended, with the reasoning behind it.
Caution. Good location, but the pre-1970 foundation hasn’t been inspected. Ask for the foundation report before you bid.
Red flags, ranked
What could be wrong with this home, from high to low risk, so you know what to look at first.
High: foundation risk. Medium: the erfpacht ground rent is reviewed in 2027. Medium: label D, roughly €8,500 to improve.
Market value and your bid
A market-value estimate from the WOZ, recent sale prices in the region and the local market, with an opening bid and a maximum bid.
Asking €525,000. Market value around €485,000. Open at €465,000, stop at €490,000.
A strong opening. You keep room to negotiate.
What the listing doesn’t say
Checked against the official registers, with what it means for your costs.
The listing doesn’t say ‘eigen grond’. The Kadaster shows ongoing erfpacht, with a review in 2027.
Questions for the makelaar
Specific questions for the viewing and for the selling agent, based on what we found.
“Has the foundation been inspected, and can I see the report?”
How it works
1.Paste a Funda link
We fill in the property details and listing text for you. Not on Funda (the main Dutch listing site)? Paste the description from the listing instead.
2.We check it
Groundwerk sets the listing against 20+ official sources: BAG, WOZ, EP-online, CBS, Klimaatatlas and more.
3.Your report in about three minutes
Verdict, red flags, market value with opening and maximum bid, and your questions for the viewing.
Built on official sources
Every report combines the listing with the registers of the Kadaster, CBS, RVO, RIVM and more.
- Kadaster BAG
- build year, floor area, permitted use
- Kadaster WOZ
- WOZ value and its history
- EP-online (RVO)
- the registered energy label
- CBS
- incomes, households, local sale prices
- Klimaateffectatlas
- flooding, heat stress, subsidence
- RIVM
- noise and air quality
- Leefbaarometer
- liveability and safety by neighbourhood
- DUO
- schools and their results
- Bodemloket
- known soil contamination
- Ruimtelijke Plannen
- zoning and what may be built nearby
3,300+ neighbourhoods in 340+ cities already have a profile.
Viewing several homes?
Groundwerk keeps your whole search together, not just one report.
Property tracker
Every home, viewing and bid in one place.
Rate it together
You and your partner rate separately and see where you disagree.
Viewing checklist
A checklist from your report, for when you’re standing in the home.
Price alerts
An email when the asking price or status changes on Funda.
The tracker, checklist and price alerts are free. The bid check, the purchase contract check, rating together and AI comparison come with the Search Pass.
Transparent pricing
The average Dutch home costs €500,000. One report costs €9.99. Your entire search costs €39.99.
What you get at each stage of your search: how Groundwerk works
Frequently asked questions
Got a home in mind?
Paste the Funda link. Your first report is free, with every section.