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Geodata Altena
Stadt Altena · Kreis Märkischer Kreis · North Rhine-Westphalia · Municipality key (AGS) 05962004
Processed by us
Ready-made files from this server — one click, one download, uniform nationwide in EPSG:25832.
🗺️ ALKIS — Real-estate cadastre: parcels, building footprints and land use
18,571 parcels, 13,633 buildings, 5,568 land-use polygons.
| Package | Size |
|---|---|
| Complete package (3 layers) | on demand |
| Parcels only | on demand |
| Building footprints only | on demand |
| Land use only | on demand |
Source: © Geobasis NRW · Licence dl-de/zero-2-0
⛰️ DGM1 — Digital terrain model: elevations on a 1-metre grid
65 tiles of 1 km² each (153 MB), 1 m grid, EPSG:25832.
| Access | Extent |
|---|---|
| Tile list (65 tiles, JSON) | 153 MB |
🏙️ DOM1 — Digital surface model: unified 1-metre elevation grid including buildings and vegetation
65 tiles of 1 km² each (186 MB), 1 m grid, EPSG:25832.
| Access | Extent |
|---|---|
| Tile list (65 tiles, JSON) | 186 MB |
Directly from the state
There is no copy of these datasets here: the tables link per tile to the server of the responsible state agency.
✈️ DOP — Digital orthophotos: current aerial imagery directly from the state agencies
65 tiles, period 2025-09-20–2025-10-01.
| Access | Note |
|---|---|
| Download links (65 tiles, JSON) | directly from the state agency |
Show historical years individually (15)
📷 bDOM — Image-based surface model at native resolution — directly from the state agency
65 tiles, period 2025-09-20–2025-10-01.
| Access | Note |
|---|---|
| Download links (65 tiles, JSON) | directly from the state agency |
📡 LiDAR — Raw laser-scan point clouds of the official surveys — directly from the state agency
65 tiles, period 2021-02-24–2021-02-25.
| Access | Note |
|---|---|
| Download links (65 tiles, JSON) | directly from the state agency |
Show statistics
Land use in Altena
What the land is used for — summed from the ALKIS land-use polygons, not taken from official statistics. Shares refer to the municipal area of 44 km².
| Use | Area | Share |
|---|---|---|
| Forest | 28 km² | 62.4 % |
| Agriculture | 7 km² | 14.8 % |
| Residential land | 323 ha | 7.3 % |
| Industry & commerce | 147 ha | 3.3 % |
| Road transport | 134 ha | 3.0 % |
| Woodland | 118 ha | 2.7 % |
| Paths and tracks | 76 ha | 1.7 % |
| Water bodies | 64 ha | 1.4 % |
| Sports, leisure & recreation | 43 ha | 1.0 % |
| Mixed-use area | 37 ha | 0.8 % |
| Special-purpose area | 25 ha | 0.6 % |
| Rail transport | 13 ha | 0.3 % |
| Cemetery | 11 ha | 0.2 % |
| Squares | 6 ha | 0.1 % |
The data covers the municipal area completely. All states compared →
Terrain elevation in Altena
Calculated from the digital terrain model (DGM1): minimum, maximum and a tile-area-weighted mean of the elevations above sea level (NHN).
| Metric | Elevation above sea level (NHN) |
|---|---|
| Minimum | 142.6 m |
| Mean | 349.4 m |
| Maximum | 516.4 m |
The extract is generated on click and covers the entire municipal area.
Click parcels and buildings directly.
Kreis Märkischer KreisA larger area as a package.
North Rhine-WestphaliaThe whole state as a ready-made package.
Extract-APICustom extracts and other formats via the API.
Data as of: 2026-09-02.