This guide explains how to handle land plots that are smaller than 0.01 ha (100 m²), which cannot be uploaded as polygon geometries to the osapiens Supplier Portal. Three approaches are available – choose the one that best fits your situation.
Approach A Point Geometry | Approach B Buffer / Expand Polygon | Approach C Contact osapiens Support |
|---|---|---|
Best for: Any user – recommended first step | Best for: Teams that need polygon geometry | Best for: Users without technical setup |
Requires: Land plot coordinates (lat/lon) | Requires: QGIS or AI tool + GeoJSON file | Requires: Access to osapiens Support Portal |
Result: Single GPS point | Result: Minimally enlarged polygon | Result: Processed GeoJSON file returned via support ticket |
Approach A – Convert to Point Geometry
Replace the polygon with a single GPS coordinate point.
Under the EUDR regulation, plots smaller than 4 ha may be represented by a single GPS coordinate (latitude/longitude) instead of a full polygon.
Step 1 – Identify the plot center coordinates
You need the latitude and longitude of the plot center. How you obtain these depends on what data you already have:
Option 1: Use geojson.io to extract the centroid from GeoJSON:
Open https://geojson.io in your browser.
Upload your GeoJSON file: use Open → File from the top menu, or drag and drop your
.geojsonfile directly onto the map.Your plot polygon appears on the map. Click on the polygon to select it.
A toolbar appears at the top of the page – click on the Create Centroid button. A new point feature is automatically placed at the polygon's centroid.
Click on the newly created centroid point. In the Feature Editor at the bottom of the page, click on GeoJSON to display the coordinates of the point.
Use the Copy button to copy the coordinates. You can now use the copied coordinates or the full GeoJSON file for Step 2.
Option 2 – Use an AI tool to extract the centroid from your GeoJSON:
Upload your GeoJSON file to an AI tool (e.g., claude.ai) and send the following request:
I have a GeoJSON file containing a land plot polygon. Please calculate the centroid (geographic center point) of this polygon and return the result as latitude and longitude in decimal degrees (WGS 84).The AI tool will return a single coordinate pair that you can use in Step 2.
Step 2 – Create a point GeoJSON file
Create a new
.geojsonfile using the following template. Replace the coordinate values with your actual plot center coordinates from Step 1:
{
"type": "FeatureCollection",
"features": [
{
"type": "Feature",
"geometry": {
"type": "Point",
"coordinates": [<longitude>, <latitude>]
},
"properties": {
"name": "Plot identifier"
}
}
]
}Note: GeoJSON uses [longitude, latitude] order – not [latitude, longitude].
Step 3 – Verify the point location
Open geojson.io in your browser and paste or upload your new file to visually confirm the point falls within the correct plot area:
Step 4 – Upload to the osapiens Supplier Portal
Upload the new point GeoJSON file via the standard upload process in the osapiens Supplier Portal.
Approach B – Buffer / Expand Polygon to Minimum Size
Enlarge the polygon to meet the 0.01 ha minimum threshold.
If you need to retain a polygon representation, the plot can be slightly enlarged (buffered) so that it meets the 0.01 ha minimum. The geographic centre remains unchanged. The following options are available:
Option 1 – Buffer in QGIS
Option 2 – Buffer via AI Tool
Option 1 – Buffer in QGIS
Step 1 – Install QGIS (if not already installed)
Download the Long Term Release (LTR) version from:
Available for Windows, macOS, and Linux. No license required.
Step 2 – Load your GeoJSON file
Open QGIS and go to Layer → Add Layer → Add Vector Layer. Select your
.geojsonfile and click on Add.Tip: Drag and drop the GeoJSON file directly onto the QGIS window.
Step 3 – Reproject to a metric CRS
The buffer must be applied in meters, not degrees. Right-click on the layer → Export → Save Features As. Set the CRS to a local metric projection (e.g. EPSG:32632 for Central Europe / UTM Zone 32N). Click on the Select CRS button to browse all available coordinate systems. Save as a temporary file.
Step 4 – Apply buffer
Go to Vector → Geoprocessing Tools → Buffer. Set the Distance to a value that will bring the area above 0.01 ha. As a guideline, a circular buffer of 6 meters around a point yields approx. 0.011 ha.
Run the tool. The result is a new buffered polygon layer.
Step 5 – Verify area
Open the Attribute Table of the buffered layer. Use the Field Calculator to confirm the area: Expression:
$area / 10000. Confirm that the value is ≥ 0.01 ha.Choose an output field name to be able to click on OK.
Step 6 – Export as GeoJSON (WGS 84)
Right-click the buffered layer → Export → Save Features As. Choose Format: GeoJSON and set the CRS to EPSG:4326 (WGS 84). Save the file.
Step 7 – Upload to the osapiens Supplier Portal
Upload the exported GeoJSON file via the standard upload process in the osapiens Supplier Portal.
Option 2 — Buffer via AI Tool
Step 1 – Open an AI tool in your browser
Go to the AI tool and sign in. (E.g., use the standard Claude chat interface at claude.ai – no special setup required.)
Step 2 – Upload your GeoJSON file
Click on the plus button and then on the paperclip/attachment icon in the chat input and attach your
.geojsonfile.
Step 3 – Send your request
Use a prompt like the following:
I have a GeoJSON file containing a land plot polygon that is smaller than 0.01 ha (100 m²). The osapiens Supplier Portal requires a minimum plot size of 0.01 ha to upload.
Please do the following:
1. Calculate the centroid of the polygon.
2. Compute the radius required for a circle with an area of exactly 0.01 ha (100 m²), converting meters to decimal degrees at the correct latitude.
3. Generate a circular polygon (36 vertices) centered on the centroid with that radius.
4. Return the result as a valid GeoJSON FeatureCollection with CRS EPSG:4326.The AI tool can perform these calculations directly and will return a ready-to-upload GeoJSON polygon.
Step 4 – Verify the output
Open https://geojson.io and upload the returned file. Confirm that:
The polygon is centered on the original plot location.
The shape appears as a small circle (this is expected – the polygon is a circular approximation).
No obvious errors or misplaced coordinates are visible.
Step 5 – Upload to the osapiens Supplier Portal
Upload the verified GeoJSON file via the standard upload process in the osapiens Supplier Portal.
Approach C – Contact the osapiens Support Team
Step 1 – Open the osapiens Support portal
Access the osapiens support portal via the link available in the Supplier Portal:
Step 2 – Create a new support ticket
Click on Submit a new ticket and fill out the relevant fields:
E-mail address
Subject: "Request to buffer plot smaller than 0.01 hectare"
Application: "EUDR"
Company name
Corresponding osapiens customer for suppliers (optional)
Environment: Demo vs. Production
Step 3 – Describe your request
In the ticket description, include:
The number of plots affected
Whether you prefer a buffer (polygon) or point geometry as the output
Any additional context relevant to the plots
Step 4 – Attach the GeoJSON file
Use the file attachment option in the ticket form to upload your
.geojsonfile.
Step 5 – Receive and upload the processed file
The support team will process your request and return the updated GeoJSON file via the ticket.
Once received, upload it via the standard upload process in the osapiens Supplier Portal.