Germany 🇩🇪¶

Germany's cadastre (Liegenschaftskataster / ALKIS) is run per federal state, with no national API. plot-finder routes a lookup to the right state's INSPIRE WFS (determined from the point), then parses the parcel. Geometry is returned in EPSG:4326.

Coordinates / address only, and 10 of 16 states

Lookup works by coordinates or address only (state services differ too much for a uniform id lookup). Free services cover 10 states: Nordrhein- Westfalen, Berlin, Brandenburg, Niedersachsen, Mecklenburg-Vorpommern, Sachsen, Sachsen-Anhalt, Thüringen, Bremen, Hamburg. The other six (Bayern, Baden-Württemberg, Hessen, Rheinland-Pfalz, Schleswig-Holstein, Saarland) are paid/restricted and raise ALKISError.

from plot_finder import Plot

plot = Plot(country="DE", x=6.9583, y=50.9413)   # Köln

Querying¶

By coordinatesBy address

Input coordinates are longitude, latitude (EPSG:4326).

Plot(country="DE", x=6.9583, y=50.9413)   # (lon, lat)

The address is geocoded with OpenStreetMap Nominatim.

Plot(country="DE", address="Domkloster 4, Köln")

Attributes¶

Sourced from the Germany class:

Attribute	Meaning	Example
`land`	state code	`05` (NRW)
`gemarkung`	cadastral district	`4958` / `Mitte`
`flur`	field/section	`030`
`parcel_number`	Zähler/Nenner	`344/17`

The plot_id is the state's Flurstückskennzeichen (e.g. 054958030003440017__).

Notes¶

Area is computed in EPSG:3035 (LAEA Europe, equal-area) so it is accurate across both German UTM zones.
The state is detected from the point via reverse geocoding; attribute detail varies by state (INSPIRE CP, ALKIS-vereinfacht, or Berlin's own schema).

Errors¶

Exception	When
`ALKISError`	a state WFS failed, an unsupported state, or a `plot_id` lookup
`PlotNotFoundError`	no parcel at the point
`AddressNotFoundError`	the address could not be geocoded