diff --git a/frontend/pages/communication/chat.vue b/frontend/pages/communication/chat.vue
index a7d6960..682089c 100644
--- a/frontend/pages/communication/chat.vue
+++ b/frontend/pages/communication/chat.vue
@@ -10,8 +10,15 @@ const matrixMessages = ref([])
 const matrixMembers = ref([])
 const matrixMessageDraft = ref("")
 const matrixMessagesViewport = ref(null)
+const roomCreateOpen = ref(false)
+const roomCreateForm = ref({
+  name: "",
+  key: "",
+  topic: ""
+})
 const loading = ref(false)
 const roomProvisioning = ref(false)
+const roomCreating = ref(false)
 const matrixMessagesLoading = ref(false)
 const matrixMembersLoading = ref(false)
 const matrixMessageSending = ref(false)
@@ -40,6 +47,10 @@ const activeRoomEndpoint = computed(() =>
   `/api/communication/matrix/rooms/${encodeURIComponent(activeRoomKey.value)}`
 )
 
+const roomCreateKeyPreview = computed(() =>
+  normalizeRoomKey(roomCreateForm.value.key || roomCreateForm.value.name)
+)
+
 const rooms = computed(() => [
   ...matrixRooms.value.map((room) => ({
     ...room,
@@ -61,6 +72,22 @@ const rooms = computed(() => [
   }
 ])
 
+const normalizeRoomKey = (value) => {
+  const normalized = String(value || "")
+    .toLowerCase()
+    .normalize("NFKD")
+    .replace(/[\u0300-\u036f]/g, "")
+    .replace(/ä/g, "a")
+    .replace(/ö/g, "o")
+    .replace(/ü/g, "u")
+    .replace(/ß/g, "ss")
+    .replace(/[^a-z0-9._=-]+/g, "_")
+    .replace(/_+/g, "_")
+    .replace(/^[._=-]+|[._=-]+$/g, "")
+
+  return normalized || "raum"
+}
+
 const setActiveRoom = async (room) => {
   if (room.disabled || room.key === activeRoomKey.value) return
 
@@ -70,6 +97,13 @@ const setActiveRoom = async (room) => {
   await loadRoomChat({ includeMembers: true })
 }
 
+const upsertRoom = (room) => {
+  const roomWasKnown = matrixRooms.value.some((item) => item.key === room.key)
+  matrixRooms.value = roomWasKnown
+    ? matrixRooms.value.map((item) => item.key === room.key ? { ...item, ...room } : item)
+    : [...matrixRooms.value, room]
+}
+
 const mergeMatrixMessages = (incomingMessages) => {
   const byId = new Map()
 
@@ -131,10 +165,7 @@ const provisionActiveRoom = async () => {
       method: "POST"
     })
 
-    const roomWasKnown = matrixRooms.value.some((room) => room.key === res.key)
-    matrixRooms.value = roomWasKnown
-      ? matrixRooms.value.map((room) => room.key === res.key ? { ...room, ...res, exists: true } : room)
-      : [...matrixRooms.value, { ...res, exists: true }]
+    upsertRoom({ ...res, exists: true })
 
     toast.add({
       title: res.alreadyExisted ? "Chatraum ist bereit" : "Chatraum erstellt",
@@ -152,6 +183,58 @@ const provisionActiveRoom = async () => {
   }
 }
 
+const createRoom = async () => {
+  const name = roomCreateForm.value.name.trim()
+  const key = roomCreateKeyPreview.value
+  const topic = roomCreateForm.value.topic.trim()
+
+  if (!name) {
+    toast.add({
+      title: "Bitte gib einen Raumnamen ein",
+      color: "warning"
+    })
+    return
+  }
+
+  roomCreating.value = true
+  try {
+    const room = await $api("/api/communication/matrix/rooms", {
+      method: "POST",
+      body: {
+        key,
+        name,
+        topic: topic || undefined,
+        type: "room"
+      }
+    })
+
+    upsertRoom({ ...room, exists: true })
+    activeRoomKey.value = room.key
+    matrixMessages.value = []
+    matrixMembers.value = []
+    roomCreateForm.value = {
+      name: "",
+      key: "",
+      topic: ""
+    }
+    roomCreateOpen.value = false
+
+    toast.add({
+      title: room.alreadyExisted ? "Chatraum ist bereit" : "Chatraum erstellt",
+      color: "success"
+    })
+
+    await loadRoomChat({ includeMembers: true })
+  } catch (error) {
+    toast.add({
+      title: "Chatraum konnte nicht erstellt werden",
+      color: "error"
+    })
+  } finally {
+    roomCreating.value = false
+  }
+}
+
 const loadRoomMessages = async ({ silent = false } = {}) => {
   if (!canUseMatrixChat.value || !activeRoom.value?.exists) return
   if (matrixMessagesRequestActive) return
@@ -333,13 +416,74 @@ onBeforeUnmount(stopMatrixAutoRefresh)
         </div>
       </div>
 
+      <div class="border-b border-default p-3">
+        <UButton
+            icon="i-heroicons-plus"
+            color="primary"
+            variant="soft"
+            block
+            :disabled="!canUseMatrixChat"
+            @click="roomCreateOpen = !roomCreateOpen"
+        >
+          Raum erstellen
+        </UButton>
+
+        <form
+            v-if="roomCreateOpen"
+            class="mt-3 space-y-3 rounded-md border border-default bg-muted p-3"
+            @submit.prevent="createRoom"
+        >
+          <UInput
+              v-model="roomCreateForm.name"
+              placeholder="Raumname"
+              :disabled="roomCreating"
+          />
+          <UInput
+              v-model="roomCreateForm.key"
+              placeholder="Raum-Key optional"
+              :disabled="roomCreating"
+          />
+          <UTextarea
+              v-model="roomCreateForm.topic"
+              placeholder="Thema optional"
+              :rows="2"
+              :disabled="roomCreating"
+          />
+          <p class="truncate text-xs text-muted">
+            Key: {{ roomCreateKeyPreview }}
+          </p>
+          <div class="flex justify-end gap-2">
+            <UButton
+                type="button"
+                color="neutral"
+                variant="ghost"
+                :disabled="roomCreating"
+                @click="roomCreateOpen = false"
+            >
+              Abbrechen
+            </UButton>
+            <UButton
+                type="submit"
+                icon="i-heroicons-check"
+                :loading="roomCreating"
+                :disabled="!roomCreateForm.name.trim()"
+            >
+              Erstellen
+            </UButton>
+          </div>
+        </form>
+      </div>
+
       <div class="flex-1 overflow-y-auto p-3">
         <button
             v-for="room in rooms"
             :key="room.key"
             type="button"
             class="mb-1 flex w-full items-center gap-3 rounded-md px-3 py-2 text-left transition"
-            :class="room.disabled ? 'cursor-not-allowed opacity-50' : 'bg-muted text-highlighted'"
+            :class="[
+              room.disabled ? 'cursor-not-allowed opacity-50' : 'text-highlighted hover:bg-muted',
+              room.key === activeRoomKey ? 'bg-muted ring-1 ring-primary/20' : ''
+            ]"
             :disabled="room.disabled"
             @click="setActiveRoom(room)"
         >
@@ -358,6 +502,14 @@ onBeforeUnmount(stopMatrixAutoRefresh)
           >
             aktiv
           </UBadge>
+          <UBadge
+              v-else-if="!room.disabled"
+              color="neutral"
+              variant="soft"
+              size="xs"
+          >
+            offen
+          </UBadge>
         </button>
       </div>
 
@@ -404,6 +556,14 @@ onBeforeUnmount(stopMatrixAutoRefresh)
               color="neutral"
               variant="outline"
           />
+          <UButton
+              class="lg:hidden"
+              icon="i-heroicons-plus"
+              color="primary"
+              variant="soft"
+              :disabled="!canUseMatrixChat"
+              @click="roomCreateOpen = !roomCreateOpen"
+          />
           <UButton
               icon="i-heroicons-arrow-path"
               color="neutral"
@@ -417,6 +577,67 @@ onBeforeUnmount(stopMatrixAutoRefresh)
         </div>
       </header>
 
+      <div class="border-b border-default bg-default p-3 lg:hidden">
+        <div class="flex gap-2 overflow-x-auto pb-1">
+          <button
+              v-for="room in rooms"
+              :key="room.key"
+              type="button"
+              class="shrink-0 rounded-md border border-default px-3 py-2 text-left text-sm"
+              :class="room.key === activeRoomKey ? 'bg-muted text-highlighted' : 'text-muted'"
+              :disabled="room.disabled"
+              @click="setActiveRoom(room)"
+          >
+            {{ room.name }}
+          </button>
+        </div>
+
+        <form
+            v-if="roomCreateOpen"
+            class="mt-3 grid gap-2 rounded-md border border-default bg-muted p-3"
+            @submit.prevent="createRoom"
+        >
+          <UInput
+              v-model="roomCreateForm.name"
+              placeholder="Raumname"
+              :disabled="roomCreating"
+          />
+          <UInput
+              v-model="roomCreateForm.key"
+              placeholder="Raum-Key optional"
+              :disabled="roomCreating"
+          />
+          <UTextarea
+              v-model="roomCreateForm.topic"
+              placeholder="Thema optional"
+              :rows="2"
+              :disabled="roomCreating"
+          />
+          <p class="truncate text-xs text-muted">
+            Key: {{ roomCreateKeyPreview }}
+          </p>
+          <div class="flex justify-end gap-2">
+            <UButton
+                type="button"
+                color="neutral"
+                variant="ghost"
+                :disabled="roomCreating"
+                @click="roomCreateOpen = false"
+            >
+              Abbrechen
+            </UButton>
+            <UButton
+                type="submit"
+                icon="i-heroicons-check"
+                :loading="roomCreating"
+                :disabled="!roomCreateForm.name.trim()"
+            >
+              Erstellen
+            </UButton>
+          </div>
+        </form>
+      </div>
+
       <div
           v-if="status && (!status.reachable || !status.provisioningConfigured)"
           class="border-b border-default bg-default px-4 py-3"
@@ -438,16 +659,16 @@ onBeforeUnmount(stopMatrixAutoRefresh)
             icon="i-heroicons-chat-bubble-left-right"
             color="primary"
             variant="soft"
-            title="Allgemeiner Chat ist noch nicht eingerichtet"
-            description="Lege den mandantenweiten Startraum an, um FEDEO als Chatplattform zu nutzen."
+            :title="`${activeRoom.name} ist noch nicht in Matrix angelegt`"
+            description="Die Raum-Metadaten sind in FEDEO vorhanden. Lege jetzt den Matrix-Raum dazu an."
         >
           <template #actions>
             <UButton
                 icon="i-heroicons-plus"
                 :loading="roomProvisioning"
-            @click="provisionActiveRoom"
+                @click="provisionActiveRoom"
             >
-              Chat erstellen
+              Matrix-Raum erstellen
             </UButton>
           </template>
         </UAlert>
@@ -461,7 +682,7 @@ onBeforeUnmount(stopMatrixAutoRefresh)
             v-if="!matrixMessages.length && !matrixMessagesLoading"
             class="flex h-full min-h-64 items-center justify-center text-sm text-muted"
         >
-          Noch keine Nachrichten im allgemeinen Chat.
+          Noch keine Nachrichten in diesem Chat.
         </div>
 
         <div