diff --git a/matrix-sdk-android-flow/src/main/java/org/matrix/android/sdk/flow/FlowSession.kt b/matrix-sdk-android-flow/src/main/java/org/matrix/android/sdk/flow/FlowSession.kt
index 9f260858f6..2839e6ab61 100644
--- a/matrix-sdk-android-flow/src/main/java/org/matrix/android/sdk/flow/FlowSession.kt
+++ b/matrix-sdk-android-flow/src/main/java/org/matrix/android/sdk/flow/FlowSession.kt
@@ -45,6 +45,13 @@ import org.matrix.android.sdk.api.util.toOptional
 
 class FlowSession(private val session: Session) {
 
+    fun liveRoomSummary(roomId: String): Flow<Optional<RoomSummary>> {
+        return session.roomService().getRoomSummaryLive(roomId).asFlow()
+                .startWith(session.coroutineDispatchers.io) {
+                    session.roomService().getRoomSummary(roomId).toOptional()
+                }
+    }
+
     fun liveRoomSummaries(queryParams: RoomSummaryQueryParams, sortOrder: RoomSortOrder = RoomSortOrder.NONE): Flow<List<RoomSummary>> {
         return session.roomService().getRoomSummariesLive(queryParams, sortOrder).asFlow()
                 .startWith(session.coroutineDispatchers.io) {
diff --git a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/session/room/RoomService.kt b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/session/room/RoomService.kt
index 6d5551ddf0..01776ca66d 100644
--- a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/session/room/RoomService.kt
+++ b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/session/room/RoomService.kt
@@ -97,6 +97,12 @@ interface RoomService {
      */
     fun getRoomSummary(roomIdOrAlias: String): RoomSummary?
 
+    /**
+     * A live [RoomSummary] associated with the room with id [roomId].
+     * You can observe this summary to get dynamic data from this room, even if the room is not joined yet
+     */
+    fun getRoomSummaryLive(roomId: String): LiveData<Optional<RoomSummary>>
+
     /**
      * Get a snapshot list of room summaries.
      * @return the immutable list of [RoomSummary]
diff --git a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/session/room/RoomSummaryQueryParams.kt b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/session/room/RoomSummaryQueryParams.kt
index 0eb0ef8875..e19dcfb240 100644
--- a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/session/room/RoomSummaryQueryParams.kt
+++ b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/session/room/RoomSummaryQueryParams.kt
@@ -51,7 +51,6 @@ fun spaceSummaryQueryParams(init: (RoomSummaryQueryParams.Builder.() -> Unit) =
  * [org.matrix.android.sdk.api.session.room.Room] and [org.matrix.android.sdk.api.session.room.RoomService].
  */
 data class RoomSummaryQueryParams(
-        val roomId: QueryStringValue,
         val displayName: QueryStringValue,
         val canonicalAlias: QueryStringValue,
         val memberships: List<Membership>,
@@ -64,7 +63,6 @@ data class RoomSummaryQueryParams(
 ) {
 
     class Builder {
-        var roomId: QueryStringValue = QueryStringValue.IsNotEmpty
         var displayName: QueryStringValue = QueryStringValue.IsNotEmpty
         var canonicalAlias: QueryStringValue = QueryStringValue.NoCondition
         var memberships: List<Membership> = Membership.all()
@@ -76,7 +74,6 @@ data class RoomSummaryQueryParams(
         var activeGroupId: String? = null
 
         fun build() = RoomSummaryQueryParams(
-                roomId = roomId,
                 displayName = displayName,
                 canonicalAlias = canonicalAlias,
                 memberships = memberships,
diff --git a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/room/DefaultRoomService.kt b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/room/DefaultRoomService.kt
index 29484c4efd..a7a5dbf4f3 100644
--- a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/room/DefaultRoomService.kt
+++ b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/room/DefaultRoomService.kt
@@ -20,7 +20,6 @@ import androidx.lifecycle.LiveData
 import androidx.lifecycle.Transformations
 import androidx.paging.PagedList
 import com.zhuinden.monarchy.Monarchy
-import org.matrix.android.sdk.api.query.QueryStringValue
 import org.matrix.android.sdk.api.session.events.model.Event
 import org.matrix.android.sdk.api.session.identity.model.SignInvitationResult
 import org.matrix.android.sdk.api.session.room.Room
@@ -91,18 +90,25 @@ internal class DefaultRoomService @Inject constructor(
         return roomSummaryDataSource.getRoomSummary(roomIdOrAlias)
     }
 
+    override fun getRoomSummaryLive(roomId: String): LiveData<Optional<RoomSummary>> {
+        return roomSummaryDataSource.getRoomSummaryLive(roomId)
+    }
+
     override fun getRoomSummaries(queryParams: RoomSummaryQueryParams,
                                   sortOrder: RoomSortOrder): List<RoomSummary> {
         return roomSummaryDataSource.getRoomSummaries(queryParams, sortOrder)
     }
 
     override fun refreshJoinedRoomSummaryPreviews(roomId: String?) {
-        val roomSummaries = getRoomSummaries(roomSummaryQueryParams {
-            if (roomId != null) {
-                this.roomId = QueryStringValue.Equals(roomId)
-            }
-            memberships = listOf(Membership.JOIN)
-        })
+        val roomSummaries = if (roomId == null) {
+            getRoomSummaries(roomSummaryQueryParams {
+                memberships = listOf(Membership.JOIN)
+            })
+        } else {
+            listOfNotNull(
+                    getRoomSummary(roomId)?.takeIf { it.membership == Membership.JOIN }
+            )
+        }
 
         if (roomSummaries.isNotEmpty()) {
             monarchy.runTransactionSync { realm ->
diff --git a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/room/summary/RoomSummaryDataSource.kt b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/room/summary/RoomSummaryDataSource.kt
index cefb4c1bd3..2ede59adcb 100644
--- a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/room/summary/RoomSummaryDataSource.kt
+++ b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/room/summary/RoomSummaryDataSource.kt
@@ -27,6 +27,7 @@ import io.realm.Realm
 import io.realm.RealmQuery
 import io.realm.kotlin.where
 import org.matrix.android.sdk.api.query.ActiveSpaceFilter
+import org.matrix.android.sdk.api.query.QueryStringValue
 import org.matrix.android.sdk.api.query.RoomCategoryFilter
 import org.matrix.android.sdk.api.query.isNormalized
 import org.matrix.android.sdk.api.session.room.ResultBoundaries
@@ -266,7 +267,7 @@ internal class RoomSummaryDataSource @Inject constructor(
     private fun roomSummariesQuery(realm: Realm, queryParams: RoomSummaryQueryParams): RealmQuery<RoomSummaryEntity> {
         val query = with(queryStringValueProcessor) {
             RoomSummaryEntity.where(realm)
-                    .process(RoomSummaryEntityFields.ROOM_ID, queryParams.roomId)
+                    .process(RoomSummaryEntityFields.ROOM_ID, QueryStringValue.IsNotEmpty)
                     .let {
                         if (queryParams.displayName.isNormalized()) {
                             it.process(RoomSummaryEntityFields.NORMALIZED_DISPLAY_NAME, queryParams.displayName)
diff --git a/vector/src/main/java/im/vector/app/features/roomdirectory/roompreview/RoomPreviewViewModel.kt b/vector/src/main/java/im/vector/app/features/roomdirectory/roompreview/RoomPreviewViewModel.kt
index e58feef5b3..9cfa6cb815 100644
--- a/vector/src/main/java/im/vector/app/features/roomdirectory/roompreview/RoomPreviewViewModel.kt
+++ b/vector/src/main/java/im/vector/app/features/roomdirectory/roompreview/RoomPreviewViewModel.kt
@@ -35,7 +35,6 @@ import kotlinx.coroutines.flow.launchIn
 import kotlinx.coroutines.flow.onEach
 import kotlinx.coroutines.launch
 import org.matrix.android.sdk.api.extensions.tryOrNull
-import org.matrix.android.sdk.api.query.QueryStringValue
 import org.matrix.android.sdk.api.session.Session
 import org.matrix.android.sdk.api.session.getRoomSummary
 import org.matrix.android.sdk.api.session.identity.SharedState
@@ -43,8 +42,8 @@ import org.matrix.android.sdk.api.session.identity.ThreePid
 import org.matrix.android.sdk.api.session.room.members.ChangeMembershipState
 import org.matrix.android.sdk.api.session.room.model.Membership
 import org.matrix.android.sdk.api.session.room.peeking.PeekResult
-import org.matrix.android.sdk.api.session.room.roomSummaryQueryParams
 import org.matrix.android.sdk.flow.flow
+import org.matrix.android.sdk.flow.unwrap
 import timber.log.Timber
 
 class RoomPreviewViewModel @AssistedInject constructor(
@@ -160,24 +159,25 @@ class RoomPreviewViewModel @AssistedInject constructor(
     }
 
     private fun observeRoomSummary() {
-        val queryParams = roomSummaryQueryParams {
-            roomId = QueryStringValue.Equals(initialState.roomId)
-            excludeType = null
-        }
         session
                 .flow()
-                .liveRoomSummaries(queryParams)
-                .onEach { list ->
-                    val isRoomJoined = list.any {
-                        it.membership == Membership.JOIN
-                    }
-                    list.firstOrNull { it.roomId == initialState.roomId }?.roomType?.let {
-                        setState {
-                            copy(roomType = it)
-                        }
-                    }
+                .liveRoomSummary(initialState.roomId)
+                .unwrap()
+                .onEach { roomSummary ->
+                    val isRoomJoined = roomSummary.membership == Membership.JOIN
                     if (isRoomJoined) {
-                        setState { copy(roomJoinState = JoinState.JOINED) }
+                        setState {
+                            copy(
+                                    roomType = roomSummary.roomType,
+                                    roomJoinState = JoinState.JOINED
+                            )
+                        }
+                    } else {
+                        setState {
+                            copy(
+                                    roomType = roomSummary.roomType
+                            )
+                        }
                     }
                 }
                 .launchIn(viewModelScope)