diff --git a/src/app/admin/admin-pannel.scss b/src/app/admin/admin-pannel.scss
index ff8626de17f5779ffb0d40d5813565d69bc16091..5ced4166a5e2f505bfe7b9444c4038de268a67cf 100644
--- a/src/app/admin/admin-pannel.scss
+++ b/src/app/admin/admin-pannel.scss
@@ -18,3 +18,11 @@
 .incomplete {
   color: $red;
 }
+
+.isOutdated {
+  color: $red;
+}
+
+.structure-updated-at {
+  text-align: right;
+}
diff --git a/src/app/admin/components/structures-list/admin-structures-list.component.html b/src/app/admin/components/structures-list/admin-structures-list.component.html
index aef30389371bef50c6774e038248607b4e9ee081..e483cbb350108cfbbcc1d9e32260f61eafbc8945 100644
--- a/src/app/admin/components/structures-list/admin-structures-list.component.html
+++ b/src/app/admin/components/structures-list/admin-structures-list.component.html
@@ -4,7 +4,7 @@
 <div *ngIf="!isLoading" fxLayout="column" fxLayoutAlign="center center">
   <table aria-describedby="demands attachment results" class="results-tab results-column">
     <thead>
-      <th scope="col">
+      <th colspan="2" scope="colgroup">
         Structures avec des données manquantes ({{ structuresIncomplete ? structuresIncomplete.length : 0 }})
       </th>
     </thead>
@@ -15,6 +15,9 @@
             {{ structure.structureName }}</a
           >
         </td>
+        <td class="structure-updated-at">
+          <span [ngClass]="{ isOutdated: structure.isOutdated }">{{ structure.updatedAt | date: 'mediumDate' }}</span>
+        </td>
       </tr>
       <tr *ngIf="!structuresIncomplete?.length">
         <td colspan="3">Aucune structure</td>
@@ -23,13 +26,16 @@
   </table>
   <table aria-describedby="demands attachment results" class="results-tab results-column">
     <thead>
-      <th scope="col">Structures en cours de revendication ({{ structuresInClaim.length }})</th>
+      <th colspan="2" scope="colgroup">Structures en cours de revendication ({{ structuresInClaim.length }})</th>
     </thead>
     <tbody>
       <tr *ngFor="let structure of structuresInClaim">
         <td>
           <a href="/acteurs?id={{ structure.structureId }}" target="_blank"> {{ structure.structureName }}</a>
         </td>
+        <td class="structure-updated-at">
+          <span [ngClass]="{ isOutdated: structure.isOutdated }">{{ structure.updatedAt | date: 'mediumDate' }}</span>
+        </td>
       </tr>
       <tr *ngIf="!structuresInClaim?.length">
         <td colspan="3">Aucune structure</td>
@@ -38,13 +44,16 @@
   </table>
   <table aria-describedby="demands attachment results" class="results-tab results-column">
     <thead>
-      <th scope="col">Structures à revendiquer ({{ structuresToClaim.length }})</th>
+      <th colspan="2" scope="colgroup">Structures à revendiquer ({{ structuresToClaim.length }})</th>
     </thead>
     <tbody>
       <tr *ngFor="let structure of structuresToClaim">
         <td>
           <a href="/acteurs?id={{ structure.structureId }}" target="_blank"> {{ structure.structureName }}</a>
         </td>
+        <td class="structure-updated-at">
+          <span [ngClass]="{ isOutdated: structure.isOutdated }">{{ structure.updatedAt | date: 'mediumDate' }}</span>
+        </td>
       </tr>
       <tr *ngIf="!structuresToClaim?.length">
         <td colspan="3">Aucune structure</td>
@@ -53,13 +62,16 @@
   </table>
   <table aria-describedby="demands attachment results" class="results-tab results-column">
     <thead>
-      <th scope="col">Structures revendiquées ({{ structuresClaimed.length }})</th>
+      <th colspan="2" scope="colgroup">Structures revendiquées ({{ structuresClaimed.length }})</th>
     </thead>
     <tbody>
       <tr *ngFor="let structure of structuresClaimed">
         <td>
           <a href="/acteurs?id={{ structure.structureId }}" target="_blank"> {{ structure.structureName }}</a>
         </td>
+        <td class="structure-updated-at">
+          <span [ngClass]="{ isOutdated: structure.isOutdated }">{{ structure.updatedAt | date: 'mediumDate' }}</span>
+        </td>
       </tr>
       <tr *ngIf="!structuresClaimed?.length">
         <td colspan="3">Aucune structure</td>