Groundwerk is a property intelligence platform for home buyers in the Netherlands. We pull data from 20+ official Dutch government databases and turn it into clear, actionable reports.

How much does it cost?

Your first report is completely free with all sections included. Additional reports are €9.99 each. The Search Pass (€39.99) gives 3 months unlimited.

Does it work for any property in the Netherlands?

Yes. Groundwerk works for any residential address in the Netherlands.

WOZ is the government-assessed property value, updated annually by the municipality. Used for property tax calculations.

What data sources do you use?

BAG, CBS, EP-online, PDOK, Kadaster, Leefbaarometer, Klimaatatlas, RIVM, DUO, and more. 20+ official sources in total.

Is Groundwerk useful for expats?

Very much so. The Dutch property system has specific concepts like erfpacht, VvE, and overdrachtsbelasting that can trip up international buyers. Groundwerk explains these in plain English.

Groundwerk is a property intelligence platform for home buyers in the Netherlands. We pull data from 20+ official Dutch government databases and turn it into clear, actionable reports. Think of it as your due diligence done in minutes instead of weeks.

Paste a Funda listing URL or enter any Dutch address. Groundwerk fetches data from BAG, CBS, EP-online, Kadaster, Klimaatatlas, RIVM, and more. You get a full report with a buy/don't buy verdict, red flags, viewing checklist, and bidding strategy.

Can I use Groundwerk with my partner?

Yes. Invite your partner to share one account: you each keep your own login and share every report, the property tracker and the billing — no password swapping. One Search Pass (€39.99) covers both of you. And you can each rate a property independently, then see where you agree and disagree, so a vague gut feeling turns into a real conversation.

How much does it cost?

Your first report is completely free with all sections included. Additional reports are €9.99 each. The Search Pass (€39.99) gives you 3 months of unlimited reports plus the property tracker, document analysis, and side-by-side comparison — and it covers both you and your partner.

Does it work for any property in the Netherlands?

Yes. Groundwerk works for any residential address in the Netherlands. Apartments, terraced houses, detached homes, new builds. If it has a Dutch postcode, we can analyse it.

WOZ (Waardering Onroerende Zaken) is the government-assessed value of a property, updated every year by the municipality. It's used to calculate your property taxes. Groundwerk shows you the WOZ history and how it compares to the asking price.

What data sources do you use?

BAG (building registry), CBS (national statistics), EP-online (energy labels), PDOK (geographic data), Kadaster (land registry), Leefbaarometer (livability index), Klimaatatlas (flood and climate risk), RIVM (air quality and noise), DUO (schools), and more.

Is Groundwerk useful for expats?

Very much so. The Dutch property system has specific concepts like erfpacht (ground lease), VvE (homeowners' association), and overdrachtsbelasting (transfer tax) that can trip up international buyers. Groundwerk explains these in plain English and flags risks you might miss.

100% official government data

Check any Dutch home before you bid.

Overbidding, hidden defects, erfpacht, foundation trouble: checked against official government data before you commit. For this home — and every home after it. We do the groundwerk.

Start free reportGenerate your first report free

No credit card required

Property report

Keizersgracht 312

Amsterdam · 1016 EX

Caution advised

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

Sought-after canal location

Roof replaced in 2019

Plenty of natural light (south-facing)

Data confidence 72% — limited VvE documentation available.

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Neighbourhoods profiled

—

Cities covered

Government data sources

Official data sources

Kadaster BAG

CBS

Kadaster WOZ

EP-online (RVO)

Klimaatatlas

RIVM

Leefbaarometer

DUO Scholen

Bodemloket

Ruimtelijke Plannen

What you can't see

Buying in the Netherlands?

Price

Bidding without data

You don’t know what the property is actually worth — or whether the asking price is fair for the neighbourhood.

Most properties sell above asking price, sometimes up to 10% over.

Structural

Hidden risks you can’t see

Foundation problems, asbestos, outdated wiring — Dutch pre-war buildings have specific risks that aren’t in the listing.

Structural issues can cost tens of thousands to fix — and sellers aren’t required to disclose everything.

Legal

VvE and ground lease pitfalls

The VvE (homeowners association) and erfpacht (ground lease) are unique to Dutch property — and can add thousands in hidden annual costs.

Most Amsterdam apartments are on ground lease, and many VvE funds are underfunded.

Three steps

How it works

Paste the property listing

Copy the property description from Funda (the main Dutch listing site) and enter the address.

We fetch the data

Groundwerk automatically queries BAG, EP-online, CBS and other official sources.

Your report in minutes

Groundwerk synthesises everything into a practical report: checklist, bidding strategy and more.

The real search

Viewing one home isn’t the hard part. Viewing fifteen is.

Most buyers lose several bids before one lands. Months in, the homes blur together, the disagreements get sharper, and the temptation is to overpay just to make it stop. That is the real risk.

After the fourth viewing, they blur

Which one had the damp patch by the meter cupboard? Which VvE had no reserve fund? You won’t remember — and that detail is what decides your bid.

You capture each viewing while you are standing in it, and it stays attached to that property.

You will lose bids. Several.

That’s normal. Every lost bid tells you what the market actually pays — but only if you kept track of what happened.

Every bid you log becomes evidence: what you offered, what it went for, and what that means for your next one.

You’re not deciding alone

You and your partner remember different things and want different things. That usually surfaces at the bid, when there’s no time left to talk it through calmly.

You each score a home separately, and we show you where you genuinely disagree.

Then you get a day to decide

Viewings last twenty minutes and bids close within 48 hours. Whatever you haven’t looked into by then, you won’t.

The checks that take a surveyor a week are already done before you walk in.

That’s why Groundwerk is built around your whole search, not around a single report. See the full journey

Property tracker

Track every property. Bid with confidence.

Most buyers are seriously considering 3–5 properties at once. Groundwerk’s Property Tracker keeps them all in one place — from first viewing to final bid. Compare side by side and let Groundwerk tell you which one is worth fighting for.

InterestedViewing plannedViewedShortlistedBid submittedWon

Property tracker

Viewed

Bids

Won

Da Costastraat 89-II, 1053ZP AmsterdamCaution

€795k84 m²Label C

Boiler verification needed — north-side window frames look rough

Asking price 6% above neighbourhood WOZ

ShortlistedOpen report →

Retiefstraat 17-HS, 1092VX AmsterdamRecommended

€545k€562k bidLabel A

Bid submittedClosing plan →

Baarsjesweg 204-III, 1058AC AmsterdamWon

€625k€640k accepted

Groundwerk Property Tracker comparison available with the Search Pass.

New · Buying together

Buying a house together

Two people, two opinions, one big decision. Groundwerk is built for couples buying together.

One account, two logins

Invite your partner to share your Groundwerk account — you'll both see the same reports, the same Property Tracker, and the same closing plan, each with your own separate login. No password sharing.

Decide together — without the arguments

Buying with a partner? Rate each home independently on what matters — and Groundwerk reveals exactly where you agree and where you don’t. Gut feeling becomes an honest, fact-based conversation.

How buying together works

Keizersgracht 312Example

YouPartner

Light42
Neighbourhood55
Condition33
Price24

You disagree on light and price. That's what the conversation is actually about.

In your report

Everything you need to bid smart

Every report includes 14 sections, based on official government data and groundwerk analysis.

groundwerk Verdict

Strongly recommended, caution, or not recommended — with reasoning

Red flags

Risks ranked by severity: high, medium, low

Renovation costs

Estimated costs per item, urgent to optional

Bidding strategy

Opening bid, maximum bid, and market value estimate

Neighbourhood analysis

Safety, schools, transport links, and flood risk

Energy label

EP-online label, heating costs, and upgrade advice

Viewing Companion

Walk every viewing with AI at your side

A personalized checklist built from your report, photos analysed by AI on the spot, and a severity summary at the end so you know where you stand before you leave.

Checklist tailored from your report
Photo & floor-plan AI analysis on the spot
Severity summary & red-flag count at a glance

Viewing · live

3 red flags

ChecklistPhotosSummary

Damp on walls

Window frames

Boiler age

Foundation cracks

Fuse box check

Transparent pricing

The average Dutch home costs €430,000. One report costs €9.99. Your entire search costs €39.99.

Free

€0

Your first report

1 free report with all sections:

All 12 report sections
3 AI chat questions

Start free

What’s included in each plan?

Report section	Free	€9.99	Pass
AI Verdict & red flags
Strengths
Viewing Checklist
Neighbourhood Summary
Property Profile
Financial Overview
Legal & Risk
Regulations
Energy Analysis
Bidding Strategy
Agent Questions
Soil & Foundation
Development & Zoning
Safety & Environment
Extra features
AI chat	3	15	50
Property Tracker
Comparison & synthesis	—	—
Viewing Companion	—	—
Document analysis (VvE + seller)	—
Shareable link + PDF	—
Invite your partner (2 logins)

All sections are built on official Dutch government data.

Frequently asked questions

Ready to buy with confidence?

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