diff --git a/lib/pages/spaces_management/all_spaces/widgets/sidebar_widget.dart b/lib/pages/spaces_management/all_spaces/widgets/sidebar_widget.dart
index 6dc8ae9c..374f0a0a 100644
--- a/lib/pages/spaces_management/all_spaces/widgets/sidebar_widget.dart
+++ b/lib/pages/spaces_management/all_spaces/widgets/sidebar_widget.dart
@@ -3,6 +3,7 @@ import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:syncrow_web/common/widgets/empty_search_result_widget.dart';
 import 'package:syncrow_web/common/widgets/search_bar.dart';
 import 'package:syncrow_web/common/widgets/sidebar_communities_list.dart';
+import 'package:syncrow_web/pages/space_tree/bloc/space_tree_bloc.dart';
 import 'package:syncrow_web/pages/spaces_management/all_spaces/bloc/space_management_bloc.dart';
 import 'package:syncrow_web/pages/spaces_management/all_spaces/bloc/space_management_event.dart';
 import 'package:syncrow_web/pages/spaces_management/all_spaces/model/community_model.dart';
@@ -15,6 +16,8 @@ import 'package:syncrow_web/pages/spaces_management/structure_selector/bloc/cent
 import 'package:syncrow_web/pages/spaces_management/structure_selector/bloc/center_body_event.dart';
 import 'package:syncrow_web/utils/style.dart';
 
+import '../../../space_tree/bloc/space_tree_event.dart';
+
 class SidebarWidget extends StatefulWidget {
   final List<CommunityModel> communities;
   final String? selectedSpaceUuid;
@@ -40,13 +43,31 @@ class _SidebarWidgetState extends State<SidebarWidget> {
 
   @override
   void initState() {
-    _selectedId = widget.selectedSpaceUuid;
     _scrollController = ScrollController();
+    _scrollController.addListener(_onScroll);
+    _selectedId = widget.selectedSpaceUuid;
     super.initState();
   }
 
+  void _onScroll() {
+    if (_scrollController.position.pixels >= _scrollController.position.maxScrollExtent - 100) {
+      // Trigger pagination event
+      final bloc = context.read<SpaceTreeBloc>();
+      if (!bloc.state.paginationIsLoading && bloc.state.paginationModel?.hasNext == true) {
+        bloc.add(
+          PaginationEvent(
+            bloc.state.paginationModel!,
+            bloc.state.communityList,
+          ),
+        );
+      }
+    }
+  }
+
   @override
   void dispose() {
+    _scrollController.removeListener(_onScroll);
+
     _scrollController.dispose();
     super.dispose();
   }
@@ -59,38 +80,6 @@ class _SidebarWidgetState extends State<SidebarWidget> {
     super.didUpdateWidget(oldWidget);
   }
 
-  List<CommunityModel> _filteredCommunities() {
-    if (_searchQuery.isEmpty) {
-      _selectedSpaceUuid = null;
-      return widget.communities;
-    }
-
-    return widget.communities.where((community) {
-      final containsQueryInCommunity =
-          community.name.toLowerCase().contains(_searchQuery.toLowerCase());
-      final containsQueryInSpaces = community.spaces.any((space) =>
-          _containsQuery(space: space, query: _searchQuery.toLowerCase()));
-
-      return containsQueryInCommunity || containsQueryInSpaces;
-    }).toList();
-  }
-
-  bool _containsQuery({
-    required SpaceModel space,
-    required String query,
-  }) {
-    final matchesSpace = space.name.toLowerCase().contains(query);
-    final matchesChildren = space.children.any(
-      (child) => _containsQuery(space: child, query: query),
-    );
-
-    if (matchesSpace || matchesChildren) {
-      _selectedSpaceUuid = space.uuid;
-    }
-
-    return matchesSpace || matchesChildren;
-  }
-
   bool _isSpaceOrChildSelected(SpaceModel space) {
     final isSpaceSelected = _selectedSpaceUuid == space.uuid;
     final anySubSpaceIsSelected = space.children.any(_isSpaceOrChildSelected);
@@ -101,7 +90,10 @@ class _SidebarWidgetState extends State<SidebarWidget> {
 
   @override
   Widget build(BuildContext context) {
-    final filteredCommunities = _filteredCommunities();
+    final spaceTreeState = context.watch<SpaceTreeBloc>().state;
+    final filteredCommunities = spaceTreeState.isSearching
+        ? spaceTreeState.filteredCommunity
+        : spaceTreeState.communityList;
 
     return Container(
       width: _width,
@@ -112,7 +104,13 @@ class _SidebarWidgetState extends State<SidebarWidget> {
         children: [
           SidebarHeader(onAddCommunity: _onAddCommunity),
           CustomSearchBar(
-            onSearchChanged: (query) => setState(() => _searchQuery = query),
+            onSearchChanged: (query) {
+              setState(() {
+                _searchQuery = query;
+              });
+
+              context.read<SpaceTreeBloc>().add(SearchQueryEvent(query));
+            },
           ),
           const SizedBox(height: 16),
           Expanded(
@@ -120,14 +118,18 @@ class _SidebarWidgetState extends State<SidebarWidget> {
               visible: filteredCommunities.isNotEmpty,
               replacement: const EmptySearchResultWidget(),
               child: SidebarCommunitiesList(
-                scrollController: _scrollController,
-                onScrollToEnd: () {},
-                communities: filteredCommunities,
-                itemBuilder: (context, index) => _buildCommunityTile(
-                  context,
-                  filteredCommunities[index],
-                ),
-              ),
+                  scrollController: _scrollController,
+                  onScrollToEnd: () {},
+                  communities: filteredCommunities,
+                  itemBuilder: (context, index) {
+                    if (index == filteredCommunities.length) {
+                      return const Padding(
+                        padding: EdgeInsets.all(8.0),
+                        child: Center(child: CircularProgressIndicator()),
+                      );
+                    }
+                    return _buildCommunityTile(context, filteredCommunities[index]);
+                  }),
             ),
           ),
         ],
@@ -205,9 +207,8 @@ class _SidebarWidgetState extends State<SidebarWidget> {
     );
   }
 
-  void _onAddCommunity() => _selectedId?.isNotEmpty ?? true
-      ? _clearSelection()
-      : _showCreateCommunityDialog();
+  void _onAddCommunity() =>
+      _selectedId?.isNotEmpty ?? true ? _clearSelection() : _showCreateCommunityDialog();
 
   void _clearSelection() {
     setState(() => _selectedId = '');