diff --git a/__test__/features/Calendars/CalendarAccessRights.test.tsx b/__test__/features/Calendars/CalendarAccessRights.test.tsx
index dcee911..6e86a45 100644
--- a/__test__/features/Calendars/CalendarAccessRights.test.tsx
+++ b/__test__/features/Calendars/CalendarAccessRights.test.tsx
@@ -87,6 +87,8 @@ const baseCalendar: Calendar = {
   events: {},
   invite: [],
   owner: { emails: ["user1@example.com"] },
+  access: { write: true },
+  delegated: true,
 };
 
 describe("CalendarAccessRights", () => {
@@ -102,7 +104,8 @@ describe("CalendarAccessRights", () => {
         value={[]}
         onChange={mockOnChange}
         onInvitesLoaded={mockOnInvitesLoaded}
-      />
+      />,
+      { ...userState }
     );
 
     expect(
@@ -113,7 +116,7 @@ describe("CalendarAccessRights", () => {
   it("shows a list of users already passed in via value prop", () => {
     const users: UserWithAccess[] = [
       {
-        openpaasId: "abc",
+        openpaasId: "user1",
         displayName: "Alice",
         email: "alice@example.com",
         accessRight: 2,
@@ -136,10 +139,10 @@ describe("CalendarAccessRights", () => {
   it("calls onChange with user removed when remove button is clicked", () => {
     const users: UserWithAccess[] = [
       {
-        openpaasId: "abc",
+        openpaasId: "user1",
         displayName: "Alice",
         email: "alice@example.com",
-        accessRight: 2,
+        accessRight: 5,
       },
     ];
 
@@ -149,7 +152,8 @@ describe("CalendarAccessRights", () => {
         value={users}
         onChange={mockOnChange}
         onInvitesLoaded={mockOnInvitesLoaded}
-      />
+      />,
+      { ...userState }
     );
 
     fireEvent.click(screen.getByLabelText(/remove/i));
@@ -182,7 +186,8 @@ describe("CalendarAccessRights", () => {
         value={[]}
         onChange={mockOnChange}
         onInvitesLoaded={mockOnInvitesLoaded}
-      />
+      />,
+      { ...userState }
     );
 
     await waitFor(() => expect(getUserDetails).toHaveBeenCalledWith("bob123"));
@@ -219,7 +224,8 @@ describe("CalendarAccessRights", () => {
         value={[]}
         onChange={mockOnChange}
         onInvitesLoaded={mockOnInvitesLoaded}
-      />
+      />,
+      { ...userState }
     );
 
     await waitFor(() => expect(mockOnInvitesLoaded).toHaveBeenCalledWith([]));
@@ -249,7 +255,8 @@ describe("CalendarAccessRights", () => {
         value={[]}
         onChange={mockOnChange}
         onInvitesLoaded={mockOnInvitesLoaded}
-      />
+      />,
+      { ...userState }
     );
 
     expect(document.querySelector('[role="progressbar"]')).toBeInTheDocument();
@@ -286,7 +293,7 @@ describe("AccessTab – conditional rendering of CalendarAccessRights", () => {
     ).toBeInTheDocument();
   });
 
-  it("hides CalendarAccessRights for a non-owner without admin delegation", () => {
+  it("hides CalendarAccessRights textfield for a non-owner without admin delegation", () => {
     const foreignCalendar: Calendar = {
       ...baseCalendar,
       id: "otherUser/cal1",
@@ -306,9 +313,10 @@ describe("AccessTab – conditional rendering of CalendarAccessRights", () => {
       }
     );
 
+    expect(screen.queryByText("peopleSearch.label")).not.toBeInTheDocument();
     expect(
-      screen.queryByText("calendarPopover.access.grantAccessRights")
-    ).not.toBeInTheDocument();
+      screen.getByText("calendarPopover.access.accessRights")
+    ).toBeInTheDocument();
   });
 
   it("shows CalendarAccessRights when the user has access=5 (admin) delegation", () => {
diff --git a/src/components/Calendar/AccessTab.tsx b/src/components/Calendar/AccessTab.tsx
index 7f35cb1..3c6cbe4 100644
--- a/src/components/Calendar/AccessTab.tsx
+++ b/src/components/Calendar/AccessTab.tsx
@@ -1,4 +1,3 @@
-import { useAppSelector } from "@/app/hooks";
 import {
   exportCalendar,
   getSecretLink,
@@ -36,11 +35,6 @@ export function AccessTab({
   onInvitesLoaded,
 }: AccessTabProps) {
   const { t } = useI18n();
-  const userData = useAppSelector((state) => state.user.userData);
-  const isPersonalCalendar = userData.openpaasId === calendar.id.split("/")[0];
-  const isDelegatedWithAdministration = calendar.invite?.find(
-    (invite) => invite.href.includes(userData.email) && invite.access === 5
-  );
 
   const calDAVLink = `${window.DAV_BASE_URL}${calendar.link.replace(".json", "")}`;
 
@@ -98,14 +92,12 @@ export function AccessTab({
 
   return (
     <>
-      {(isPersonalCalendar || isDelegatedWithAdministration) && (
-        <CalendarAccessRights
-          calendar={calendar}
-          value={usersWithAccess}
-          onChange={onUsersWithAccessChange}
-          onInvitesLoaded={onInvitesLoaded}
-        />
-      )}
+      <CalendarAccessRights
+        calendar={calendar}
+        value={usersWithAccess}
+        onChange={onUsersWithAccessChange}
+        onInvitesLoaded={onInvitesLoaded}
+      />
 
       {!!window.DAV_BASE_URL && (
         <FieldWithLabel label={t("calendar.caldav_access")} isExpanded={false}>
diff --git a/src/components/Calendar/CalendarAccessRights.tsx b/src/components/Calendar/CalendarAccessRights.tsx
index ccf6897..d37fbe2 100644
--- a/src/components/Calendar/CalendarAccessRights.tsx
+++ b/src/components/Calendar/CalendarAccessRights.tsx
@@ -1,5 +1,8 @@
+import { useAppSelector } from "@/app/hooks";
 import { AccessRight, Calendar } from "@/features/Calendars/CalendarTypes";
 import { getUserDetails } from "@/features/User/userAPI";
+import { makeDisplayName } from "@/utils/makeDisplayName";
+import { normalizeEmail } from "@/utils/normalizeEmail";
 import {
   AutocompleteRenderInputParams,
   Avatar,
@@ -38,6 +41,17 @@ export function CalendarAccessRights({
   onInvitesLoaded,
 }: CalendarAccessRightsProps) {
   const { t } = useI18n();
+  const userData = useAppSelector((state) => state.user.userData);
+  const isPersonalCalendar = userData?.openpaasId === calendar.id.split("/")[0];
+  const currentUserEmail = normalizeEmail(userData?.email);
+  const isDelegatedWithAdministration = !!calendar.invite?.some((invite) => {
+    const invitedEmail = normalizeEmail(invite.href.replace(/^mailto:/i, ""));
+    return invitedEmail === currentUserEmail && invite.access === 5;
+  });
+
+  const ownerEmail =
+    calendar.owner?.preferredEmail ?? calendar.owner?.emails?.[0] ?? "";
+  const ownerName = makeDisplayName(calendar) ?? ownerEmail;
 
   const containerRef = useRef<HTMLDivElement>(null);
   const [searchWidth, setSearchWidth] = useState<number | undefined>(undefined);
@@ -115,8 +129,6 @@ export function CalendarAccessRights({
     };
   }, [calendar.invite, onChange, onInvitesLoaded]);
 
-  const normalizeEmail = (email?: string) => email?.trim().toLowerCase() ?? "";
-
   const handleUserSelect = (_event: unknown, users: User[]) => {
     const updated: UserWithAccess[] = users.map((user) => {
       const existing = usersWithAccess.find(
@@ -153,188 +165,217 @@ export function CalendarAccessRights({
 
   return (
     <FieldWithLabel
-      label={t("calendarPopover.access.grantAccessRights")}
+      label={
+        isPersonalCalendar || isDelegatedWithAdministration
+          ? t("calendarPopover.access.grantAccessRights")
+          : t("calendarPopover.access.accessRights")
+      }
       isExpanded={false}
     >
-      <Box ref={containerRef}>
-        <PeopleSearch
-          selectedUsers={usersWithAccess}
-          onChange={handleUserSelect}
-          objectTypes={["user"]}
-          onToggleEventPreview={() => {}}
-          customSlotProps={{
-            popper: {
-              anchorEl: containerRef.current,
-              placement: "bottom-start",
-              sx: {
-                minWidth: searchWidth,
-                "& .MuiPaper-root": {
-                  width: "100%",
-                },
-              },
-              modifiers: [
-                {
-                  name: "offset",
-                  options: {
-                    offset: [0, 8],
+      {(isPersonalCalendar || isDelegatedWithAdministration) && (
+        <Box ref={containerRef}>
+          <PeopleSearch
+            selectedUsers={usersWithAccess}
+            onChange={handleUserSelect}
+            objectTypes={["user"]}
+            onToggleEventPreview={() => {}}
+            customSlotProps={{
+              popper: {
+                anchorEl: containerRef.current,
+                placement: "bottom-start",
+                sx: {
+                  minWidth: searchWidth,
+                  "& .MuiPaper-root": {
+                    width: "100%",
                   },
                 },
-              ],
-            },
-          }}
-          customRenderInput={(
-            params: AutocompleteRenderInputParams,
-            query: string,
-            setQuery: (value: string) => void
-          ) => (
-            <TextField
-              {...params}
-              fullWidth
-              autoFocus
-              placeholder={t("peopleSearch.label")}
-              value={query}
-              inputRef={(el) => {
-                const ref = params.InputProps.ref;
-                if (typeof ref === "function") {
-                  ref(el);
-                } else if (ref && "current" in ref) {
-                  (
-                    ref as React.MutableRefObject<HTMLInputElement | null>
-                  ).current = el;
-                }
-              }}
-              onChange={(e) => setQuery(e.target.value)}
-              variant="outlined"
-              inputProps={{
-                ...params.inputProps,
-                sx: {
-                  fontSize: "14px",
-                  "&::placeholder": { fontSize: "14px" },
-                },
-              }}
-              InputProps={{
-                ...params.InputProps,
-                startAdornment: (
-                  <InputAdornment position="start">
-                    <PeopleOutlineOutlinedIcon
-                      sx={{ color: "text.secondary" }}
-                    />
-                  </InputAdornment>
-                ),
-                endAdornment: (
-                  <InputAdornment position="end">
-                    <Select
-                      value={accessRight}
-                      onChange={(e) =>
-                        setAccessRight(e.target.value as AccessRight)
-                      }
-                      variant="standard"
-                      disableUnderline
-                      sx={{
-                        fontSize: "0.875rem",
-                        color: "text.secondary",
-                        "& .MuiSelect-select": {
-                          paddingRight: "24px !important",
-                          paddingY: 0,
-                        },
-                        "& .MuiSelect-icon": { fontSize: "1rem" },
-                        "&:before, &:after": { display: "none" },
-                      }}
-                    >
-                      {accessRightOptions.map((opt) => (
-                        <MenuItem
-                          key={opt.value}
-                          value={opt.value}
-                          sx={{ color: "text.secondary" }}
-                        >
-                          {opt.label}
-                        </MenuItem>
-                      ))}
-                    </Select>
-                  </InputAdornment>
-                ),
-              }}
-            />
-          )}
-        />
-      </Box>
-
-      {inviteLoading ? (
-        <Box mt={2} display="flex" justifyContent="center">
-          <CircularProgress size={24} />
-        </Box>
-      ) : (
-        usersWithAccess.length > 0 && (
-          <Box mt={2} display="flex" flexDirection="column" gap={1}>
-            {usersWithAccess.map((user) => (
-              <Box
-                key={user.email}
-                display="flex"
-                alignItems="center"
-                justifyContent="space-between"
-                px={1}
-                py={0.5}
-                sx={{
-                  borderRadius: "8px",
-                  "&:hover": { backgroundColor: "action.hover" },
+                modifiers: [
+                  {
+                    name: "offset",
+                    options: {
+                      offset: [0, 8],
+                    },
+                  },
+                ],
+              },
+            }}
+            customRenderInput={(
+              params: AutocompleteRenderInputParams,
+              query: string,
+              setQuery: (value: string) => void
+            ) => (
+              <TextField
+                {...params}
+                fullWidth
+                autoFocus
+                placeholder={t("peopleSearch.label")}
+                value={query}
+                inputRef={(el) => {
+                  const ref = params.InputProps.ref;
+                  if (typeof ref === "function") {
+                    ref(el);
+                  } else if (ref && "current" in ref) {
+                    (
+                      ref as React.MutableRefObject<HTMLInputElement | null>
+                    ).current = el;
+                  }
                 }}
-              >
-                <Box display="flex" alignItems="center" gap={1.5} minWidth={0}>
-                  <Avatar
-                    {...stringAvatar(user.displayName)}
-                    sx={{ width: 28, height: 28, fontSize: "0.875rem" }}
-                  >
-                    {user.displayName?.[0]?.toUpperCase()}
-                  </Avatar>
-                  <Box
-                    minWidth={0}
-                    display="flex"
-                    flexDirection="column"
-                    gap={0}
-                  >
-                    <Typography noWrap>{user.displayName}</Typography>
-                    <Typography variant="caption" color="text.secondary">
-                      {user.email}
-                    </Typography>
-                  </Box>
-                </Box>
-
-                <Box
-                  display="flex"
-                  alignItems="center"
-                  gap={0.5}
-                  flexShrink={0}
-                >
-                  <Select
-                    value={user.accessRight}
-                    onChange={(e) =>
-                      handleChangeUserRight(
-                        user.email,
-                        e.target.value as AccessRight
-                      )
-                    }
-                    variant="standard"
-                    disableUnderline
-                    sx={{
-                      fontSize: "0.875rem",
-                      color: "text.secondary",
-                      "& .MuiSelect-select": {
-                        paddingRight: "24px !important",
-                        paddingY: 0,
-                      },
-                      "& .MuiSelect-icon": { fontSize: "1rem" },
-                    }}
-                  >
-                    {accessRightOptions.map((opt) => (
-                      <MenuItem
-                        key={opt.value}
-                        value={opt.value}
+                onChange={(e) => setQuery(e.target.value)}
+                variant="outlined"
+                inputProps={{
+                  ...params.inputProps,
+                  sx: {
+                    fontSize: "14px",
+                    "&::placeholder": { fontSize: "14px" },
+                  },
+                }}
+                InputProps={{
+                  ...params.InputProps,
+                  startAdornment: (
+                    <InputAdornment position="start">
+                      <PeopleOutlineOutlinedIcon
                         sx={{ color: "text.secondary" }}
+                      />
+                    </InputAdornment>
+                  ),
+                  endAdornment: (
+                    <InputAdornment position="end">
+                      <Select
+                        value={accessRight}
+                        onChange={(e) =>
+                          setAccessRight(e.target.value as AccessRight)
+                        }
+                        variant="standard"
+                        disableUnderline
+                        sx={{
+                          fontSize: "0.875rem",
+                          color: "text.secondary",
+                          "& .MuiSelect-select": {
+                            paddingRight: "24px !important",
+                            paddingY: 0,
+                          },
+                          "& .MuiSelect-icon": { fontSize: "1rem" },
+                          "&:before, &:after": { display: "none" },
+                        }}
                       >
-                        {opt.label}
-                      </MenuItem>
-                    ))}
-                  </Select>
+                        {accessRightOptions.map((opt) => (
+                          <MenuItem
+                            key={opt.value}
+                            value={opt.value}
+                            sx={{ color: "text.secondary" }}
+                          >
+                            {opt.label}
+                          </MenuItem>
+                        ))}
+                      </Select>
+                    </InputAdornment>
+                  ),
+                }}
+              />
+            )}
+          />
+        </Box>
+      )}
+
+      <Box mt={2} display="flex" flexDirection="column" gap={1}>
+        <Box
+          key={ownerEmail}
+          display="flex"
+          alignItems="center"
+          justifyContent="space-between"
+          px={1}
+          py={0.5}
+          sx={{
+            borderRadius: "8px",
+            "&:hover": { backgroundColor: "action.hover" },
+          }}
+        >
+          <Box display="flex" alignItems="center" gap={1.5} minWidth={0}>
+            <Avatar
+              {...stringAvatar(ownerName)}
+              sx={{ width: 28, height: 28, fontSize: "0.875rem" }}
+            />
+            <Box minWidth={0} display="flex" flexDirection="column" gap={0}>
+              <Typography noWrap>{ownerName}</Typography>
+              <Typography variant="caption" color="text.secondary">
+                {ownerEmail}
+              </Typography>
+            </Box>
+          </Box>
+
+          <Box display="flex" alignItems="center" gap={0.5} flexShrink={0}>
+            <Typography variant="caption">
+              {t("calendarPopover.access.owner")}
+            </Typography>
+          </Box>
+        </Box>
+        {inviteLoading ? (
+          <Box mt={2} display="flex" justifyContent="center">
+            <CircularProgress size={24} />
+          </Box>
+        ) : (
+          usersWithAccess.length > 0 &&
+          usersWithAccess.map((user) => (
+            <Box
+              key={user.email}
+              display="flex"
+              alignItems="center"
+              justifyContent="space-between"
+              px={1}
+              py={0.5}
+              sx={{
+                borderRadius: "8px",
+                "&:hover": { backgroundColor: "action.hover" },
+              }}
+            >
+              <Box display="flex" alignItems="center" gap={1.5} minWidth={0}>
+                <Avatar
+                  {...stringAvatar(user.displayName)}
+                  sx={{ width: 28, height: 28, fontSize: "0.875rem" }}
+                />
+                <Box minWidth={0} display="flex" flexDirection="column" gap={0}>
+                  <Typography noWrap>{user.displayName}</Typography>
+                  <Typography variant="caption" color="text.secondary">
+                    {user.email}
+                  </Typography>
+                </Box>
+              </Box>
+
+              <Box display="flex" alignItems="center" gap={0.5} flexShrink={0}>
+                <Select
+                  value={user.accessRight}
+                  onChange={(e) =>
+                    handleChangeUserRight(
+                      user.email,
+                      e.target.value as AccessRight
+                    )
+                  }
+                  variant="standard"
+                  disableUnderline
+                  disabled={
+                    !(isPersonalCalendar || isDelegatedWithAdministration)
+                  }
+                  sx={{
+                    fontSize: "0.875rem",
+                    color: "text.secondary",
+                    "& .MuiSelect-select": {
+                      paddingRight: "24px !important",
+                      paddingY: 0,
+                    },
+                    "& .MuiSelect-icon": { fontSize: "1rem" },
+                  }}
+                >
+                  {accessRightOptions.map((opt) => (
+                    <MenuItem
+                      key={opt.value}
+                      value={opt.value}
+                      sx={{ color: "text.secondary" }}
+                    >
+                      {opt.label}
+                    </MenuItem>
+                  ))}
+                </Select>
+                {(isPersonalCalendar || isDelegatedWithAdministration) && (
                   <IconButton
                     size="small"
                     aria-label={t("actions.remove")}
@@ -343,12 +384,12 @@ export function CalendarAccessRights({
                   >
                     <HighlightOffIcon fontSize="small" />
                   </IconButton>
-                </Box>
+                )}
               </Box>
-            ))}
-          </Box>
-        )
-      )}
+            </Box>
+          ))
+        )}
+      </Box>
     </FieldWithLabel>
   );
 }
diff --git a/src/components/Calendar/CalendarModal.tsx b/src/components/Calendar/CalendarModal.tsx
index cb3b201..79d271b 100644
--- a/src/components/Calendar/CalendarModal.tsx
+++ b/src/components/Calendar/CalendarModal.tsx
@@ -39,6 +39,16 @@ function CalendarPopover({
   const isOwn = calendar?.id
     ? extractEventBaseUuid(calendar.id) === userData.openpaasId
     : true;
+  const canManageInvites =
+    isOwn ||
+    !!calendar?.invite?.some((invite) => {
+      const inviteEmail = invite.href
+        .replace(/^mailto:/i, "")
+        .trim()
+        .toLowerCase();
+      const currentEmail = userData.email?.trim().toLowerCase();
+      return inviteEmail === currentEmail && invite.access === 5;
+    });
 
   // existing calendar params
   const [name, setName] = useState("");
@@ -146,7 +156,7 @@ function CalendarPopover({
       .filter((u) => !!normaliseEmail(u) && !currentMap.has(normaliseEmail(u)))
       .map((u) => ({ "dav:href": `mailto:${normaliseEmail(u)}` }));
 
-    if (set.length === 0 && remove.length === 0) return;
+    if ((set.length === 0 && remove.length === 0) || !canManageInvites) return;
 
     await dispatch(
       updateDelegationCalendarAsync({
diff --git a/src/locales/en.json b/src/locales/en.json
index 2b21b2a..6e4da30 100644
--- a/src/locales/en.json
+++ b/src/locales/en.json
@@ -84,8 +84,10 @@
     },
     "access": {
       "grantAccessRights": "Grant Access rights",
+      "accessRights": "Access rights",
       "viewAllEvents": "View all events",
       "editor": "Editor",
+      "owner": "Owner",
       "administrator": "Administrator"
     }
   },
diff --git a/src/locales/fr.json b/src/locales/fr.json
index 15c5968..57772a7 100644
--- a/src/locales/fr.json
+++ b/src/locales/fr.json
@@ -86,6 +86,7 @@
     },
     "access": {
       "grantAccessRights": "Accorder des droits d'accès",
+      "accessRights": "Droits d'accès",
       "viewAllEvents": "Voir tous les événements",
       "editor": "Éditeur",
       "administrator": "Administrateur"
diff --git a/src/locales/ru.json b/src/locales/ru.json
index 3c9a335..5e68d79 100644
--- a/src/locales/ru.json
+++ b/src/locales/ru.json
@@ -86,6 +86,7 @@
     },
     "access": {
       "grantAccessRights": "Предоставить права доступа",
+      "accessRights": "Права доступа",
       "viewAllEvents": "Просмотр всех событий",
       "editor": "Редактор",
       "administrator": "Администратор"
diff --git a/src/locales/vi.json b/src/locales/vi.json
index c1b07e5..5592656 100644
--- a/src/locales/vi.json
+++ b/src/locales/vi.json
@@ -84,6 +84,7 @@
     },
     "access": {
       "grantAccessRights": "Cấp quyền truy cập",
+      "accessRights": "Quyền truy cập",
       "viewAllEvents": "Xem tất cả sự kiện",
       "editor": "Biên tập viên",
       "administrator": "Quản trị viên"
diff --git a/src/utils/normalizeEmail.tsx b/src/utils/normalizeEmail.tsx
new file mode 100644
index 0000000..18f35f6
--- /dev/null
+++ b/src/utils/normalizeEmail.tsx
@@ -0,0 +1,3 @@
+export function normalizeEmail(email?: string) {
+  return email?.trim().toLowerCase() ?? "";
+}