01 · Supply
New parcels & plots
See new land supply from across the market bundled on one map, including supply that isn't public yet. No more trawling ten sites.
hundreds of sourcesincl. off-market
Grondradar · development sites for housing
Be first to know which land position is about to move
Grondradar flags new plots, parcel splits and zoning changes across the Netherlands. Auto-matched to your development thesis for housing: zoning, plan capacity, surface area and location. So you spot development sites before they hit the market.
Nationwide · dailyFiltered to your development thesisGDPR-ready · NL data
LIVE · NL · RADAR
9.6M objects
SignalParcel splitnow
Farmland · BarneveldParcel K 1215 → 1216 + 1217
One nationwide picture, updated daily
9.6Mobjects in view
~3.6Mparcels nationwide
Dailyparcel boundaries & IDs
All of NLnationwide coverage
01The problem
Missing development sites isn't a mistake: it just costs time
The best land positions are gone before they become visible. Keeping up today means manually jumping between listing sites, environment plans, municipal notices and Excel, and still hoping you don't miss a split or a quiet sale. Grondradar flips that around.
Environment planMarket sitesMunicipalityExcel
Parcel split · BarneveldAgricultural zoning · 2.4 haMatch
New plot · ZutphenOff-market listing · 1,100 m²
Parcel mutation · EdeBoundary changed · same-day
02How it works
From all of the Netherlands to your shortlist, in three steps
The system watches continuously and only speaks up when something happens that fits what you're after.
01
Monitor
We track every parcel in the Netherlands daily: new parcels, splits, mergers and parcel mutations, plus fresh land supply from hundreds of sources.
02
Match
Every signal runs past your development thesis automatically: zoning, the environment plan, plan capacity, CBS data and market information. Noise out, opportunities in.
03
Signal
Does a location fit your development strategy? You get an alert, with all the context in one view, ready to act on.
03What you get
Every signal the land market gives off
From new supply to the evidence behind every opportunity. And you steer it all with the chatbot: just ask which locations you want to see.
02 · Movement
Parcel splits & mergers
A parcel that splits is often the first sign of a sale or development. Grondradar sees it, often already at the provisional boundary, before it's final.
121512161217
03 · Mutations
Parcel mutations
If something changes about a parcel (size, boundary or status), you'll know. Same-day data, nationwide.
boundary t-1boundary same-day
04 · Filters
Smart filters, or just ask
Combine zoning, the environment plan, plan capacity, zones and CBS into exactly your development thesis for housing. Or type what you're after in plain language and the AI agent sets up the filters for you. Build it once, let it run continuously.
AgriculturalEN> 2 haENPath-to-build
05 · AI agent
Steer everything by chat
Ask in plain language which locations you want to see, such as 'agricultural parcels in Gelderland that just split and are larger than 2 ha', and the AI agent searches, filters and interprets the data. Every search and every filter is controlled by chat.
“Show agricultural parcels in Gelderland that just split”
06 · Evidence
Sale prices & market data
Back up every opportunity with current sale prices and market data, available directly through Revelop.
Sale price € 480/m²Comparables < 1 km
04The difference
Not a map to search through. A signal that comes to you.
Most real-estate tools make you search: you open the map, you ask the question, every single time. Grondradar runs continuously in the background and speaks up on its own the moment something moves that fits your criteria.
Searching
A map you have to search through
You open the map, you ask the question, every time. Miss a day and you miss the movement.
- Manually checking: listing sites, environment plan, municipality
- You only find it once you go looking
- One region at a time, a snapshot
Being signalled
A signal that comes to you
Grondradar runs continuously in the background and speaks up the moment something moves that fits your criteria, and you set those criteria just by asking the chatbot.
- Continuous, nationwide and same-day
- Only what fits your development thesis
- Steer everything in plain language by chat
05Who it's for
Built for people who develop areas
From area development to housing: one nationwide picture for everyone hunting land positions for new homes.
01
Area developers
Watch land positions emerge and recognise separate plots forming a development site: the early signals of a new residential area.
02
Housing & project development
Fill your pipeline with locations that fit your housing programme, including off-market supply.
03
Land strategy & acquisition
Build your land portfolio where the plan capacity sits, well before a location hits the market.
See it for yourself: on your region, your filters
Book a 30-minute demo. We'll set up Grondradar for your area and show you live which opportunities are already out there.
GDPR-compliantDutch dataPublic and commercial data sources
06FAQ
Frequently asked questions
Short answers to what area developers ask us most.
Where does the data come from?
Grondradar combines public and commercial data sources, such as the BAG, zoning and environment plans, CBS and market data, into one current picture.
How current is it?
Parcel boundaries and numbers are same-day fresh; other data follows its source's update cadence.
Does it cover the whole of the Netherlands?
Yes, monitoring is nationwide. Land supply we bundle from a growing number of sources.
Can I set the filters through the chatbot?
Yes. You steer everything in plain language: ask which locations you want to see and the AI agent sets up the search and filters for you, searches the data and interprets the result. Manual fine-tuning is available too.
Can I filter on housing potential?
Yes. Combine zoning, the environment plan and plan capacity with surface area and location, so you see exactly the locations that fit your housing programme.
Do I get to see sale prices?
Yes, sale prices and market data are available through Revelop.
How is this different from a map or acquisition tool?
Those make you search. Grondradar signals proactively, nationwide and filtered to your criteria.
Book a demo
Rather explore the parcels yourself first? Open the cadastral map.