What does the Windlastzonen Deutschland Karte show?
Germany is divided into four wind load zones, defined in the national annex to Eurocode 1, DIN EN 1991-1-4/NA. The zone assigns each location a basic wind velocity and the corresponding velocity pressure, the starting point for every wind load calculation on buildings, facades and roofs. Mapular provides these zones as queryable polygons, so you read the zone for a site programmatically instead of locating it on the paper map in the standard.
How binding are Windlastzonen in structural design?
Legal status
Reference data
An authoritative input for analysis and screening. It carries no legal effect of its own.
The wind load zones are defined in DIN EN 1991-1-4/NA, the German national annex to Eurocode 1 for wind actions. The zoning itself parametrises a binding design standard. This layer is reference data that makes those standardised zone definitions queryable as geodata.
What this means for you
For your workflow, the zone is the entry point of every wind load verification: it fixes the basic wind velocity your engineers calculate with. Having it as data means feasibility studies, tenders and portfolio screenings start from a consistent, documented zone value. The binding verification itself remains the structural engineer's task.
Which attributes do the Windlastzonen include?
- Wind zone: The wind load zone value from 1 to 4 as defined in DIN EN 1991-1-4/NA, from inland zone 1 to the exposed coastal zone 4.
- Zone geometry: The zone boundary as a polygon, so any address or coordinate can be intersected and assigned to exactly one zone.
- Federal state: The Bundesland each zone polygon belongs to, for filtering, state-level reporting, and portfolio breakdowns.
- Classification basis: A reference to the underlying standard, DIN EN 1991-1-4/NA, documenting which zoning scheme the value follows.
Wind zones follow Germany's geography rather than its administrative borders: the North Sea and Baltic coasts and their islands sit in zones 3 and 4, while most inland states fall into zones 1 and 2. Several federal states span multiple zones, which is exactly why a per-site lookup beats a state-level assumption.
What can you do with Windlastzonen as Geodaten?
- Screen an acquisition portfolio of hundreds of properties for their wind zone in one query instead of looking each site up by hand on the standard's map.
- Feed early structural design assumptions for halls, high-rises, and facades with a documented zone value before the detailed wind load calculation starts.
- Automate feasibility checks in site selection: flag locations in zones 3 and 4 where wind loads drive structure and cladding costs upward.
- Keep documentation consistent across projects: every report cites the same zone value from the same layer, with the classification basis attached.
Where do the Windlastzonen come from?
Standardised zone definitions from the German national annex to Eurocode 1, compiled and harmonised into one consistent, queryable layer for the whole country.
Which Bundesländer do the Windlastzonen cover?
The Windlastzonen layer covers all 16 German federal states, from the coastal zones of Schleswig-Holstein and Mecklenburg-Vorpommern to the inland zones of Bavaria and Baden-Württemberg: one consistent layer, nationwide.
Coverage by federal state
- BBBrandenburgAvailable
- BEBerlinAvailable
- BWBaden-WürttembergAvailable
- BYBavariaAvailable
- HBBremenAvailable
- HEHesseAvailable
- HHHamburgAvailable
- MVMecklenburg-Western PomeraniaAvailable
- NILower SaxonyAvailable
- NWNorth Rhine-WestphaliaAvailable
- RPRhineland-PalatinateAvailable
- SHSchleswig-HolsteinAvailable
- SLSaarlandAvailable
- SNSaxonyAvailable
- STSaxony-AnhaltAvailable
- THThuringiaAvailable
Where the federal state publishes this layer, we carry it: 16 of 16 federal states today. Where it doesn't, we say so.
Coverage gap
Your region of interest isn't covered?
Coverage follows what each state and municipality has actually digitised, so there are real gaps, and they are not always where you would expect. Tell us the region and the layer you need and we will look into what can be sourced for it, including data we do not list today.
Tell us what you needHow do you access the Windlastzonen layer?
One unified dataset: Ready for direct integration into your GIS, CAD, or BI tools. Standard formats, documented schema.
Mapular Explorer: Instant planning interface, no GIS setup required. Filter, analyse, and export from your browser.
Frequently asked questions about Windlastzonen
What are Windlastzonen?
Windlastzonen are Germany's four standardised wind load zones, defined in DIN EN 1991-1-4/NA, the national annex to Eurocode 1. Each zone assigns a basic wind velocity and velocity pressure to a region, from zone 1 in sheltered inland areas to zone 4 on exposed coasts. They are the starting parameter for wind load calculations on structures.
How many wind load zones does Germany have?
Germany has four wind load zones, numbered 1 to 4, defined in DIN EN 1991-1-4/NA. Zone 1 covers sheltered inland regions with the lowest basic wind velocity, zones 2 and 3 cover most of the north and the low mountain ranges, and zone 4 covers exposed coastal strips and islands with the highest wind velocities.
What does the wind zone determine in structural design?
The wind zone determines the basic wind velocity and the corresponding velocity pressure at a site under DIN EN 1991-1-4/NA. From these values, engineers derive the wind loads acting on load-bearing structure, facades, and roofs. A higher zone means higher design wind pressures and typically heavier or stiffer construction to carry them.
Is a Windlastzonen dataset a substitute for a structural engineer?
No. The Windlastzonen layer provides the standardised zone value for any site as reference data, which makes screening and early design assumptions fast and consistent. The binding wind load verification for a specific building must still be performed and signed off by a qualified structural engineer under the applicable standards.
Why use Windlastzonen as geodata instead of the map in the standard?
As geodata, the wind zones become queryable: a coordinate goes in, a zone value comes out. That enables portfolio screening across thousands of sites, automated feasibility checks and consistent documentation, none of which is practical when each site has to be located manually on the printed zone map in DIN EN 1991-1-4/NA.
Which parts of Germany does the Windlastzonen layer cover?
Mapular's Windlastzonen layer covers all 16 German federal states in one consistent dataset. Every location in Germany, coastal or inland, can be assigned its wind load zone from 1 to 4 by intersecting the site coordinate with the zone polygons.