See what is coming your way.

Enter your address in the free WatKomtEr radar: you immediately see how many building plans, permits, zoning plans and roadworks are going on within 1 kilometre. You can also search yourself, but then in three places: the official notices on Overheid.nl, the Omgevingsloket (Regels op de kaart) and the roadworks planning of your municipality.

Do it before you make an offer. First check the address for free on the radar; if something is going on, the Koopcheck gives you, for each development, what the official source says, what it means and how big the impact is. Also ask the seller or estate agent what they know, look at the zoning plan for the address and get advice from a buying agent or notary if in doubt.

In the Omgevingsloket, via "Regels op de kaart". Since the Environment and Planning Act (1 January 2024), the bestemmingsplan is called omgevingsplan; old bestemmingsplannen remain in force for now as part of it. WatKomtEr shows zoning plans and changes to the environmental plan within 1 km from the past 18 months, so mainly what is changing.

Yes. Overheid.nl has a free email service that notifies you of new official notices around your address, such as permit applications. That is useful for keeping up to date. WatKomtEr shows everything from the past 18 months at once, including zoning plans and roadworks, on a map and in plain language.

Partly. In general, a seller must tell you what they know and what is important to you, but as a buyer you also have your own duty to investigate: you are expected to be able to find publicly published plans yourself. So ask about it, record the answers and check the official sources. This is general information, not legal advice.

For any address in the Netherlands. We look within 1 kilometre of the address in official notices from municipalities, provinces and water boards, in zoning plans, in changes to the environmental plan and in the roadworks planning.

We retrieve the data from the official sources and keep it up to date every few hours. We look at notices and plans from the past 18 months, and at roadworks as they are planned now. The report states for each source when the data was retrieved.

Yes, that is possible. WatKomtEr works automatically with the data that governments publish. A government can publish something late or without a (precise) location, and our classification can misjudge or merge an item. We regularly check our method with samples, but we do not guarantee completeness. That is why every development links to the official source. Check it before an important decision, and also ask the seller, estate agent or municipality what they know.

Then we tell you honestly and do not recommend the Koopcheck for that address: you do not pay for a report without content. Please note: not all plans are in official sources yet, so "nothing found" is no guarantee that nothing will come.

Every development by name, with what the source says word for word, a plain-language explanation, what it may mean for the address, an impact score, a map and aerial photo, what is still uncertain and the link to the source. It is not legal advice and does not replace research by an estate agent, notary or lawyer.

The radar is free. The Koopcheck costs €9.95 one-off per address, including VAT, without an account or subscription. You pay via iDEAL and usually receive the report as a PDF in your inbox within a few minutes, with an invoice.

Yes, free of charge, as long as the report has not been delivered, via the Withdraw page. Because the report is delivered digitally straight away, the right of withdrawal lapses once it has been delivered; you agree to this when ordering. If the report is not in order, you have the usual statutory rights.

WatKomtEr is an independent Dutch company registered with the Chamber of Commerce, not a government body. We only use public, official sources. All details are on the Contact and company details page.

If you only use the radar, we store nothing about you. If you order a Koopcheck, we only keep what is needed for the report, delivery and payment, and delete it automatically. We use no tracking cookies; we count visits anonymously on our own server.