diff --git a/src/lib/components/blocks/WindkarteBlock.svelte b/src/lib/components/blocks/WindkarteBlock.svelte
index 8899f57..6c4d85f 100644
--- a/src/lib/components/blocks/WindkarteBlock.svelte
+++ b/src/lib/components/blocks/WindkarteBlock.svelte
@@ -7,6 +7,8 @@
   import WindAreaPanel from "$lib/components/WindAreaPanel.svelte";
   import { useTranslate, T } from "$lib/translations";
   import { getBlockLayoutClasses } from "$lib/block-layout";
+  import Icon from "@iconify/svelte";
+  import "$lib/iconify-offline";
 
   const t = useTranslate();
 
@@ -112,6 +114,18 @@ let areas = $state<WindArea[]>([]);
     </div>
   {/if}
 
+  <!-- Daten-Disclaimer (default geschlossen, oberhalb der Karte) -->
+  <details class="data-disclaimer mb-3 rounded-md border border-stein-200 bg-stein-50 text-xs text-stein-600">
+    <summary class="flex cursor-pointer items-center gap-1.5 px-3 py-1.5 font-medium text-stein-700 hover:bg-stein-100 list-none">
+      <Icon icon="mdi:information-outline" class="size-3.5 shrink-0 text-stein-500" />
+      <span class="flex-1">Hinweis zu den Daten</span>
+      <Icon icon="mdi:chevron-down" class="disclaimer-chevron size-4 shrink-0 text-stein-500 transition-transform" />
+    </summary>
+    <p class="border-t border-stein-200 px-3 py-2 leading-relaxed">
+      Diese Karte zeigt zu den Vorranggebieten die amtlichen Angaben aus den Prüfbögen, also Flächengröße und Windhöffigkeit. Wir hatten zusätzlich eigene Schätzwerte zu Anlagenzahl und Anlagenhöhe ergänzt. Diese waren keine amtlichen Festlegungen, der Regionalplan legt beides nicht fest, das entscheidet sich erst im Genehmigungsverfahren. Wir haben diese Schätzwerte entfernt, um Missverständnisse zu vermeiden. Wer einen Fehler findet, kann sich gern bei uns melden.
+    </p>
+  </details>
+
   <div class="map-container relative overflow-hidden rounded-xl border border-stein-200 shadow-sm">
     <!-- Reset button -->
     {#if resetMap}
@@ -213,6 +227,7 @@ let areas = $state<WindArea[]>([]);
       {/each}
     </span>
   </div>
+
 </div>
 
 <style>
@@ -220,6 +235,10 @@ let areas = $state<WindArea[]>([]);
     height: clamp(460px, 75vh, 620px);
   }
 
+  .data-disclaimer[open] :global(.disclaimer-chevron) {
+    transform: rotate(180deg);
+  }
+
   /* Panel: mobile = bottom sheet, sm+ = right side panel */
   .panel-slide {
     position: absolute;
diff --git a/src/lib/iconify-mdi-subset.generated.json b/src/lib/iconify-mdi-subset.generated.json
index 4e570c2..93f3ba6 100644
--- a/src/lib/iconify-mdi-subset.generated.json
+++ b/src/lib/iconify-mdi-subset.generated.json
@@ -84,9 +84,6 @@
     "download": {
       "body": "<path fill=\"currentColor\" d=\"M5 20h14v-2H5m14-9h-4V3H9v6H5l7 7z\"/>"
     },
-    "information-outline": {
-      "body": "<path fill=\"currentColor\" d=\"M11 9h2V7h-2m1 13c-4.41 0-8-3.59-8-8s3.59-8 8-8s8 3.59 8 8s-3.59 8-8 8m0-18A10 10 0 0 0 2 12a10 10 0 0 0 10 10a10 10 0 0 0 10-10A10 10 0 0 0 12 2m-1 15h2v-6h-2z\"/>"
-    },
     "loading": {
       "body": "<path fill=\"currentColor\" d=\"M12 4V2A10 10 0 0 0 2 12h2a8 8 0 0 1 8-8\"/>"
     },
@@ -168,12 +165,6 @@
     "vector-square": {
       "body": "<path fill=\"currentColor\" d=\"M2 2h6v2h8V2h6v6h-2v8h2v6h-6v-2H8v2H2v-6h2V8H2zm14 6V6H8v2H6v8h2v2h8v-2h2V8zM4 4v2h2V4zm14 0v2h2V4zM4 18v2h2v-2zm14 0v2h2v-2z\"/>"
     },
-    "wind-turbine": {
-      "body": "<path fill=\"currentColor\" d=\"m13.33 11.67l2.88 2.91c1.41-1.42 0-2.83 0-2.83l-1.49-1.51c.18-.38.28-.8.28-1.24c0-1.05-.54-1.97-1.36-2.5L15 2.11c-1.91-.58-2.5 1.33-2.5 1.33l-.81 2.59c-1.23.13-2.23.97-2.56 2.15L4.67 9.63c.64 1.9 2.53 1.27 2.53 1.27l2.07-.67c.34.74.96 1.31 1.73 1.59V19s-2 0-2 2v1h6v-1s0-2-2-2v-7.18c.12-.04.23-.1.33-.15M10.5 9A1.5 1.5 0 0 1 12 7.5A1.5 1.5 0 0 1 13.5 9a1.5 1.5 0 0 1-1.5 1.5A1.5 1.5 0 0 1 10.5 9\"/>"
-    },
-    "arrow-expand-vertical": {
-      "body": "<path fill=\"currentColor\" d=\"M13 9v6h3l-4 4l-4-4h3V9H8l4-4l4 4zM4 2h16v2H4zm0 18h16v2H4z\"/>"
-    },
     "domain": {
       "body": "<path fill=\"currentColor\" d=\"M18 15h-2v2h2m0-6h-2v2h2m2 6h-8v-2h2v-2h-2v-2h2v-2h-2V9h8M10 7H8V5h2m0 6H8V9h2m0 6H8v-2h2m0 6H8v-2h2M6 7H4V5h2m0 6H4V9h2m0 6H4v-2h2m0 6H4v-2h2m6-10V3H2v18h20V7z\"/>"
     },
@@ -219,6 +210,9 @@
     "alert-circle": {
       "body": "<path fill=\"currentColor\" d=\"M13 13h-2V7h2m0 10h-2v-2h2M12 2A10 10 0 0 0 2 12a10 10 0 0 0 10 10a10 10 0 0 0 10-10A10 10 0 0 0 12 2\"/>"
     },
+    "information-outline": {
+      "body": "<path fill=\"currentColor\" d=\"M11 9h2V7h-2m1 13c-4.41 0-8-3.59-8-8s3.59-8 8-8s8 3.59 8 8s-3.59 8-8 8m0-18A10 10 0 0 0 2 12a10 10 0 0 0 10 10a10 10 0 0 0 10-10A10 10 0 0 0 12 2m-1 15h2v-6h-2z\"/>"
+    },
     "play": {
       "body": "<path fill=\"currentColor\" d=\"M8 5.14v14l11-7z\"/>"
     },