diff --git a/apps/edr-passenger-api/src/modules/seats/seats.service.ts b/apps/edr-passenger-api/src/modules/seats/seats.service.ts
index c85b49bbf..340900fdd 100644
--- a/apps/edr-passenger-api/src/modules/seats/seats.service.ts
+++ b/apps/edr-passenger-api/src/modules/seats/seats.service.ts
@@ -224,16 +224,27 @@ export class SeatsService {
       }
     }
 
-    const availability = await this.segmentsService.getSeatAvailabilityMap(
-      scheduleId, seatIds, stopTimes, reqFrom, reqTo, journeyDirection || JourneyDirection.ONE_WAY,
-    );
+    const [availability, persistedSeats] = await Promise.all([
+      this.segmentsService.getSeatAvailabilityMap(
+        scheduleId, seatIds, stopTimes, reqFrom, reqTo, journeyDirection || JourneyDirection.ONE_WAY,
+      ),
+      this.prisma.seat.findMany({
+        where: { id: { in: seatIds } },
+        select: { id: true, status: true },
+      }),
+    ]);
+
+    const persistedStatus = new Map(persistedSeats.map(s => [s.id, s.status]));
 
-    // Every requested seat defaults to AVAILABLE — this also guards against a stale
-    // persisted Seat.status column (e.g. a leftover 'BOOKED'/'BLOCKED' value) bleeding
-    // through getSeatMap's own fallback, since that fallback only triggers when this
-    // map has no entry at all for a given seat.
     for (const seatId of seatIds) {
-      statusMap.set(seatId, availability.get(seatId) ?? 'AVAILABLE');
+      const persisted = persistedStatus.get(seatId);
+      // BLOCKED and UNDER_MAINTENANCE are cross-schedule flags set by admins —
+      // always honour them regardless of hold/booking state.
+      if ((persisted as string) === 'BLOCKED' || (persisted as string) === 'UNDER_MAINTENANCE') {
+        statusMap.set(seatId, persisted!);
+      } else {
+        statusMap.set(seatId, availability.get(seatId) ?? 'AVAILABLE');
+      }
     }
 
     return statusMap;
diff --git a/apps/edr-passenger-web/backoffice/src/app/seats/page.tsx b/apps/edr-passenger-web/backoffice/src/app/seats/page.tsx
index 413383b7a..9c9ee3286 100644
--- a/apps/edr-passenger-web/backoffice/src/app/seats/page.tsx
+++ b/apps/edr-passenger-web/backoffice/src/app/seats/page.tsx
@@ -35,6 +35,7 @@ export default function SeatsPage() {
     queryKey: ['seatmap', selectedSchedule],
     queryFn: () => selectedSchedule ? seatsApi.getSeatMap(selectedSchedule) : Promise.resolve(null),
     enabled: !!selectedSchedule,
+    staleTime: 0,
   });
 
   const { data: coachTypesData } = useQuery({
@@ -49,6 +50,7 @@ export default function SeatsPage() {
 
   const { data: routeCoachesData, isLoading: routeCoachesLoading } = useQuery({
     queryKey: ['routeCoaches', selectedRoute],
+    staleTime: 0,
     queryFn: async () => {
       if (!selectedRoute) return null;
       const template: any[] = await routeCoachTemplatesApi.get(selectedRoute);
@@ -79,10 +81,15 @@ export default function SeatsPage() {
     enabled: !!selectedRoute,
   });
 
+  const invalidateSeatData = () => {
+    queryClient.refetchQueries({ queryKey: ['seatmap', selectedSchedule] });
+    queryClient.refetchQueries({ queryKey: ['routeCoaches', selectedRoute] });
+  };
+
   const blockMutation = useMutation({
     mutationFn: ({ seatId, reason }: any) => seatsApi.block(seatId, { reason }),
     onSuccess: () => {
-      queryClient.invalidateQueries({ queryKey: ['seatmap'] });
+      invalidateSeatData();
       setShowBlockModal(false);
       setSelectedSeat(null);
       setBlockReason('');
@@ -92,14 +99,14 @@ export default function SeatsPage() {
   const unblockMutation = useMutation({
     mutationFn: (seatId: string) => seatsApi.unblock(seatId),
     onSuccess: () => {
-      queryClient.invalidateQueries({ queryKey: ['seatmap'] });
+      invalidateSeatData();
     },
   });
 
   const removeSeatMutation = useMutation({
     mutationFn: (seatId: string) => seatsApi.removeSeat(seatId),
     onSuccess: () => {
-      queryClient.invalidateQueries({ queryKey: ['seatmap'] });
+      invalidateSeatData();
       setShowRemoveModal(false);
       setSelectedSeat(null);
     },
@@ -108,7 +115,7 @@ export default function SeatsPage() {
   const undoRemoveMutation = useMutation({
     mutationFn: (seatId: string) => seatsApi.undoRemove(seatId),
     onSuccess: () => {
-      queryClient.invalidateQueries({ queryKey: ['seatmap'] });
+      invalidateSeatData();
     },
   });
 
@@ -116,7 +123,7 @@ export default function SeatsPage() {
     mutationFn: ({ seatId, reason }: { seatId: string; reason: string }) =>
       seatsApi.setMaintenance(seatId, reason),
     onSuccess: () => {
-      queryClient.invalidateQueries({ queryKey: ['seatmap'] });
+      invalidateSeatData();
       setShowMaintenanceModal(false);
       setSelectedSeat(null);
       setMaintenanceReason('');
@@ -125,7 +132,7 @@ export default function SeatsPage() {
 
   const clearMaintenanceMutation = useMutation({
     mutationFn: (seatId: string) => seatsApi.clearMaintenance(seatId),
-    onSuccess: () => queryClient.invalidateQueries({ queryKey: ['seatmap'] }),
+    onSuccess: () => invalidateSeatData(),
   });
 
   const schedules = schedulesData?.items || schedulesData?.data || [];
@@ -139,7 +146,7 @@ export default function SeatsPage() {
       return Promise.all(seatIds.map((seatId: string) => seatsApi.block(seatId, { reason })));
     },
     onSuccess: () => {
-      queryClient.invalidateQueries({ queryKey: ['seatmap'] });
+      invalidateSeatData();
       setShowBlockCoachModal(false);
       setSelectedCoach(null);
       setBlockCoachReason('');
@@ -153,7 +160,7 @@ export default function SeatsPage() {
       return Promise.all(seatIds.map((seatId: string) => seatsApi.unblock(seatId)));
     },
     onSuccess: () => {
-      queryClient.invalidateQueries({ queryKey: ['seatmap'] });
+      invalidateSeatData();
       setShowUnblockCoachModal(false);
       setCoachToUnblock(null);
     },
@@ -1015,7 +1022,7 @@ function SeatIcon({
   const color = getSeatColor(status);
   const canBlock = status === 'AVAILABLE';
   const canUnblock = status === 'BLOCKED';
-  const canMaintenance = status === 'AVAILABLE' || status === 'BLOCKED';
+  const canMaintenance = false;
   const canClearMaintenance = status === 'UNDER_MAINTENANCE';
 
   return (