diff --git a/MatrixSDK/Data/RoomList/MXRoomListDataFilterOptions.swift b/MatrixSDK/Data/RoomList/MXRoomListDataFilterOptions.swift
index 1970262fe8..56bd499e98 100644
--- a/MatrixSDK/Data/RoomList/MXRoomListDataFilterOptions.swift
+++ b/MatrixSDK/Data/RoomList/MXRoomListDataFilterOptions.swift
@@ -40,6 +40,10 @@ public struct MXRoomListDataFilterOptions: Equatable {
     /// Flag to filter only suggested rooms, if set to `true`, `dataTypes` and `notDataTypes` are not valid.
     public let onlySuggested: Bool
     
+    /// Flag to hide any rooms where the user's membership is unknown. This has no effect when `onlySuggested` is `true`.
+    /// When set to `false`, rooms that have been cached during peeking may be included in the filtered results.
+    public let hideUnknownMembershipRooms: Bool
+    
     /// Initializer
     /// - Parameters:
     ///   - dataTypes: data types to fetch. Pass `MXRoomListDataFilterOptions.emptyDataTypes` not to specify any.
@@ -50,13 +54,15 @@ public struct MXRoomListDataFilterOptions: Equatable {
                 onlySuggested: Bool = false,
                 query: String? = nil,
                 space: MXSpace? = nil,
-                showAllRoomsInHomeSpace: Bool) {
+                showAllRoomsInHomeSpace: Bool,
+                hideUnknownMembershipRooms: Bool = true) {
         self.dataTypes = dataTypes
         self.notDataTypes = notDataTypes
         self.onlySuggested = onlySuggested
         self.query = query
         self.space = space
         self.showAllRoomsInHomeSpace = showAllRoomsInHomeSpace
+        self.hideUnknownMembershipRooms = hideUnknownMembershipRooms
     }
     
     /// Just to be used for in-memory data
@@ -83,6 +89,12 @@ public struct MXRoomListDataFilterOptions: Equatable {
         }
         
         if !onlySuggested {
+            if hideUnknownMembershipRooms {
+                let memberPredicate = NSPredicate(format: "%K != %d",
+                                                  #keyPath(MXRoomSummaryProtocol.membership), MXMembership.unknown.rawValue)
+                subpredicates.append(memberPredicate)
+            }
+            
             if !dataTypes.isEmpty {
                 let subpredicate = NSPredicate(format: "(%K & %d) != 0",
                                                #keyPath(MXRoomSummaryProtocol.dataTypes), dataTypes.rawValue)
@@ -119,9 +131,9 @@ public struct MXRoomListDataFilterOptions: Equatable {
                                                 #keyPath(MXRoomSummaryProtocol.dataTypes), favoritedDataTypes.rawValue)
                 
                 let subpredicate4_1 = NSPredicate(format: "%K == NULL",
-                                                #keyPath(MXRoomSummaryProtocol.parentSpaceIds))
+                                                  #keyPath(MXRoomSummaryProtocol.parentSpaceIds))
                 let subpredicate4_2 = NSPredicate(format: "%K.@count == 0",
-                                                #keyPath(MXRoomSummaryProtocol.parentSpaceIds))
+                                                  #keyPath(MXRoomSummaryProtocol.parentSpaceIds))
                 let subpredicate4 = NSCompoundPredicate(type: .or,
                                                         subpredicates: [subpredicate4_1, subpredicate4_2])
                 
diff --git a/MatrixSDK/MXSession.h b/MatrixSDK/MXSession.h
index c973937e3f..b4b2d9142d 100644
--- a/MatrixSDK/MXSession.h
+++ b/MatrixSDK/MXSession.h
@@ -503,6 +503,16 @@ FOUNDATION_EXPORT NSString *const kMXSessionNoRoomTag;
  */
 @property (nonatomic, readonly, getter=isPauseable) BOOL pauseable;
 
+/**
+ Whether the user is part of a room with the membership state of `join` or
+ they are in the process of joining.
+
+ @param roomIdOrAlias The ID or alias of the room to check.
+
+ @return YES if they are.
+ */
+- (BOOL)isJoinedOnRoom:(NSString *)roomIdOrAlias;
+
 #pragma mark - Class methods
 
 /**
diff --git a/changelog.d/5083.bugfix b/changelog.d/5083.bugfix
new file mode 100644
index 0000000000..3433752b1f
--- /dev/null
+++ b/changelog.d/5083.bugfix
@@ -0,0 +1 @@
+MXRoomListDataFilterOptions: Filter out any cached room previews.
\ No newline at end of file