diff --git a/Riot/Modules/Common/Recents/RecentsViewController.m b/Riot/Modules/Common/Recents/RecentsViewController.m
index 98fe7dd63..fca8a1300 100644
--- a/Riot/Modules/Common/Recents/RecentsViewController.m
+++ b/Riot/Modules/Common/Recents/RecentsViewController.m
@@ -1144,8 +1144,10 @@ NSString *const RecentsViewControllerDataReadyNotification = @"RecentsViewContro
                 if (weakSelf)
                 {
                     typeof(self) self = weakSelf;
-                    [self presentViewController:isLastOwnerPrompt animated:YES completion:nil];
-                    self->currentAlert = isLastOwnerPrompt;
+                    dispatch_async(dispatch_get_main_queue(), ^{
+                        [self presentViewController:isLastOwnerPrompt animated:YES completion:nil];
+                        self->currentAlert = isLastOwnerPrompt;
+                    });
                 }
             }
             else
@@ -1243,8 +1245,10 @@ NSString *const RecentsViewControllerDataReadyNotification = @"RecentsViewContro
                 if (weakSelf)
                 {
                     typeof(self) self = weakSelf;
-                    [self presentViewController:leavePrompt animated:YES completion:nil];
-                    self->currentAlert = leavePrompt;
+                    dispatch_async(dispatch_get_main_queue(), ^{
+                        [self presentViewController:leavePrompt animated:YES completion:nil];
+                        self->currentAlert = leavePrompt;
+                    });
                 }
             }
         }];
diff --git a/Riot/Modules/MatrixKit/Controllers/MXKRoomMemberDetailsViewController.m b/Riot/Modules/MatrixKit/Controllers/MXKRoomMemberDetailsViewController.m
index 39bb1854c..908a3e72c 100644
--- a/Riot/Modules/MatrixKit/Controllers/MXKRoomMemberDetailsViewController.m
+++ b/Riot/Modules/MatrixKit/Controllers/MXKRoomMemberDetailsViewController.m
@@ -220,20 +220,55 @@ Please see LICENSE in the repository root for full details.
             }
             case MXKRoomMemberDetailsActionLeave:
             {
-                [self addPendingActionMask];
-                [self.mxRoom leave:^{
-                    
-                    [self removePendingActionMask];
-                    [self withdrawViewControllerAnimated:YES completion:nil];
-                    
-                } failure:^(NSError *error) {
-                    
-                    [self removePendingActionMask];
-                    MXLogDebug(@"[MXKRoomMemberDetailsVC] Leave room %@ failed", self->mxRoom.roomId);
-                    // Notify MatrixKit user
-                    NSString *myUserId = self.mainSession.myUser.userId;
-                    [[NSNotificationCenter defaultCenter] postNotificationName:kMXKErrorNotification object:error userInfo:myUserId ? @{kMXKErrorUserIdKey: myUserId} : nil];
-                    
+                __weak typeof(self) weakSelf = self;
+                [self.mxRoom isLastOwnerWithCompletionHandler:^(BOOL isLastOwner, NSError* error){
+                    if (isLastOwner)
+                    {
+                        UIAlertController *isLastOwnerPrompt = [UIAlertController alertControllerWithTitle:[VectorL10n error]
+                                                                                                   message:[VectorL10n roomParticipantsLeaveNotAllowedForLastOwnerMsg]
+                                                                                            preferredStyle:UIAlertControllerStyleAlert];
+                        
+                        [isLastOwnerPrompt addAction:[UIAlertAction actionWithTitle:[VectorL10n ok]
+                                                                              style:UIAlertActionStyleCancel
+                                                                            handler:^(UIAlertAction * action) {
+                            if (weakSelf)
+                            {
+                                typeof(self) self = weakSelf;
+                                self->currentAlert = nil;
+                            }
+                        }]];
+                        
+                        if (weakSelf)
+                        {
+                            typeof(self) self = weakSelf;
+                            dispatch_async(dispatch_get_main_queue(), ^{
+                                [self presentViewController:isLastOwnerPrompt animated:YES completion:nil];
+                                self->currentAlert = isLastOwnerPrompt;
+                            });
+                        }
+                    }
+                    else
+                    {
+                        if (weakSelf)
+                        {
+                            typeof(self) self = weakSelf;
+                            [self addPendingActionMask];
+                            [self.mxRoom leave:^{
+                                
+                                [self removePendingActionMask];
+                                [self withdrawViewControllerAnimated:YES completion:nil];
+                                
+                            } failure:^(NSError *error) {
+                                
+                                [self removePendingActionMask];
+                                MXLogDebug(@"[MXKRoomMemberDetailsVC] Leave room %@ failed", self->mxRoom.roomId);
+                                // Notify MatrixKit user
+                                NSString *myUserId = self.mainSession.myUser.userId;
+                                [[NSNotificationCenter defaultCenter] postNotificationName:kMXKErrorNotification object:error userInfo:myUserId ? @{kMXKErrorUserIdKey: myUserId} : nil];
+                                
+                            }];
+                        }
+                    }
                 }];
                 break;
             }
diff --git a/Riot/Modules/Room/Members/RoomParticipantsViewController.m b/Riot/Modules/Room/Members/RoomParticipantsViewController.m
index 6ec3b8e7c..392211da1 100644
--- a/Riot/Modules/Room/Members/RoomParticipantsViewController.m
+++ b/Riot/Modules/Room/Members/RoomParticipantsViewController.m
@@ -1231,62 +1231,7 @@ Please see LICENSE in the repository root for full details.
         
         if (section == participantsSection && userParticipant && (0 == row) && !currentSearchText.length)
         {
-            // Leave ?
-            MXWeakify(self);
-            
-            NSString *title, *message;
-            if (self.mxRoom.isDirect)
-            {
-                title = [VectorL10n roomParticipantsLeavePromptTitleForDm];
-                message = [VectorL10n roomParticipantsLeavePromptMsgForDm];
-            }
-            else
-            {
-                title = [VectorL10n roomParticipantsLeavePromptTitle];
-                message = [VectorL10n roomParticipantsLeavePromptMsg];
-            }
-            
-            currentAlert = [UIAlertController alertControllerWithTitle:title
-                                                               message:message
-                                                        preferredStyle:UIAlertControllerStyleAlert];
-            
-            [currentAlert addAction:[UIAlertAction actionWithTitle:[VectorL10n cancel]
-                                                             style:UIAlertActionStyleCancel
-                                                           handler:^(UIAlertAction * action) {
-                                                               
-                                                               MXStrongifyAndReturnIfNil(self);
-                                                               self->currentAlert = nil;
-                                                               
-                                                           }]];
-            
-            [currentAlert addAction:[UIAlertAction actionWithTitle:[VectorL10n leave]
-                                                             style:UIAlertActionStyleDefault
-                                                           handler:^(UIAlertAction * action) {
-                                                               
-                                                               MXStrongifyAndReturnIfNil(self);
-                                                               self->currentAlert = nil;
-                                                               
-                                                               [self addPendingActionMask];
-                                                               MXWeakify(self);
-                                                               [self.mxRoom leave:^{
-                                                                   
-                                                                   MXStrongifyAndReturnIfNil(self);
-                                                                   [self withdrawViewControllerAnimated:YES completion:nil];
-                                                                   
-                                                               } failure:^(NSError *error) {
-                                                                   
-                                                                   MXStrongifyAndReturnIfNil(self);
-                                                                   [self removePendingActionMask];
-                                                                   MXLogDebug(@"[RoomParticipantsVC] Leave room %@ failed", self.mxRoom.roomId);
-                                                                   // Alert user
-                                                                   [[AppDelegate theDelegate] showErrorAsAlert:error];
-                                                                   
-                                                               }];
-                                                               
-                                                           }]];
-            
-            [currentAlert mxk_setAccessibilityIdentifier:@"RoomParticipantsVCLeaveAlert"];
-            [self presentViewController:currentAlert animated:YES completion:nil];
+            [self leaveRoom];
         }
         else
         {
@@ -1433,6 +1378,89 @@ Please see LICENSE in the repository root for full details.
     }
 }
 
+- (void)leaveRoom {
+    MXWeakify(self);
+    
+    [self.mxRoom isLastOwnerWithCompletionHandler:^(BOOL isLastOnwer, NSError* error) {
+        if (isLastOnwer)
+        {
+            MXStrongifyAndReturnIfNil(self);
+            self->currentAlert = [UIAlertController alertControllerWithTitle:[VectorL10n error]
+                                                               message:[VectorL10n roomParticipantsLeaveNotAllowedForLastOwnerMsg]
+                                                        preferredStyle:UIAlertControllerStyleAlert];
+            
+            [self->currentAlert addAction:[UIAlertAction actionWithTitle:[VectorL10n cancel]
+                                                             style:UIAlertActionStyleCancel
+                                                           handler:^(UIAlertAction * action) {
+                                                               
+                                                               MXStrongifyAndReturnIfNil(self);
+                                                               self->currentAlert = nil;
+                                                           }]];
+            dispatch_async(dispatch_get_main_queue(), ^{
+                [self presentViewController:self->currentAlert animated:YES completion:nil];
+            });
+        }
+        else
+        {
+            // Leave ?
+            MXStrongifyAndReturnIfNil(self);
+            NSString *title, *message;
+            if (self.mxRoom.isDirect)
+            {
+                title = [VectorL10n roomParticipantsLeavePromptTitleForDm];
+                message = [VectorL10n roomParticipantsLeavePromptMsgForDm];
+            }
+            else
+            {
+                title = [VectorL10n roomParticipantsLeavePromptTitle];
+                message = [VectorL10n roomParticipantsLeavePromptMsg];
+            }
+            
+            self->currentAlert = [UIAlertController alertControllerWithTitle:title
+                                                               message:message
+                                                        preferredStyle:UIAlertControllerStyleAlert];
+            
+            [self->currentAlert addAction:[UIAlertAction actionWithTitle:[VectorL10n cancel]
+                                                             style:UIAlertActionStyleCancel
+                                                           handler:^(UIAlertAction * action) {
+                                                               
+                                                               MXStrongifyAndReturnIfNil(self);
+                                                               self->currentAlert = nil;
+                                                               
+                                                           }]];
+            
+            [self->currentAlert addAction:[UIAlertAction actionWithTitle:[VectorL10n leave]
+                                                             style:UIAlertActionStyleDefault
+                                                           handler:^(UIAlertAction * action) {
+                                                               
+                                                               MXStrongifyAndReturnIfNil(self);
+                                                               self->currentAlert = nil;
+                                                               
+                                                               [self addPendingActionMask];
+                                                               MXWeakify(self);
+                                                               [self.mxRoom leave:^{
+                                                                   
+                                                                   MXStrongifyAndReturnIfNil(self);
+                                                                   [self withdrawViewControllerAnimated:YES completion:nil];
+                                                                   
+                                                               } failure:^(NSError *error) {
+                                                                   
+                                                                   MXStrongifyAndReturnIfNil(self);
+                                                                   [self removePendingActionMask];
+                                                                   MXLogDebug(@"[RoomParticipantsVC] Leave room %@ failed", self.mxRoom.roomId);
+                                                                   // Alert user
+                                                                   [[AppDelegate theDelegate] showErrorAsAlert:error];
+                                                                   
+                                                               }];
+                                                               
+                                                           }]];
+            
+            [self->currentAlert mxk_setAccessibilityIdentifier:@"RoomParticipantsVCLeaveAlert"];
+            [self presentViewController:self->currentAlert animated:YES completion:nil];
+        }
+    }];
+}
+
 - (void)onCancel:(id)sender
 {
     [self withdrawViewControllerAnimated:YES completion:nil];