diff --git a/lib/pages/spaces_management/all_spaces/widgets/sidebar_add_community_button.dart b/lib/pages/spaces_management/all_spaces/widgets/sidebar_add_community_button.dart
index 2f434350..5c769d48 100644
--- a/lib/pages/spaces_management/all_spaces/widgets/sidebar_add_community_button.dart
+++ b/lib/pages/spaces_management/all_spaces/widgets/sidebar_add_community_button.dart
@@ -1,32 +1,51 @@
 import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:flutter_svg/svg.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/create_community/view/create_community_dialog.dart';
 import 'package:syncrow_web/utils/color_manager.dart';
 import 'package:syncrow_web/utils/constants/assets.dart';
 
 class SidebarAddCommunityButton extends StatelessWidget {
-  const SidebarAddCommunityButton({super.key});
+  const SidebarAddCommunityButton({
+    required this.existingCommunityNames,
+    super.key,
+  });
+
+  final List<String> existingCommunityNames;
 
   @override
   Widget build(BuildContext context) {
-    return GestureDetector(
-      onTap: () => _navigateToBlank(context),
-      child: Container(
-        width: 30,
-        height: 30,
-        decoration: const BoxDecoration(
-          color: ColorsManager.whiteColors,
-          shape: BoxShape.circle,
-        ),
-        child: Center(
-          child: SvgPicture.asset(
-            Assets.roundedAddIcon,
-            width: 24,
-            height: 24,
+    return SizedBox.square(
+      dimension: 30,
+      child: IconButton(
+        style: IconButton.styleFrom(
+          iconSize: 20,
+          backgroundColor: ColorsManager.circleImageBackground,
+          shape: const CircleBorder(
+            side: BorderSide(
+              color: ColorsManager.lightGrayBorderColor,
+              width: 3,
+            ),
           ),
         ),
+        onPressed: () => _showCreateCommunityDialog(context),
+        icon: SvgPicture.asset(Assets.addIcon),
       ),
     );
   }
 
-  void _navigateToBlank(BuildContext context) {}
+  void _showCreateCommunityDialog(BuildContext context) => showDialog<void>(
+        context: context,
+        builder: (context) => CreateCommunityDialog(
+          isEditMode: false,
+          existingCommunityNames: existingCommunityNames,
+          onCreateCommunity: (name, description) {
+            context.read<SpaceManagementBloc>().add(
+                  CreateCommunityEvent(name, description, context),
+                );
+          },
+        ),
+      );
 }
diff --git a/lib/pages/spaces_management/all_spaces/widgets/sidebar_header.dart b/lib/pages/spaces_management/all_spaces/widgets/sidebar_header.dart
index 1e386d4f..135be109 100644
--- a/lib/pages/spaces_management/all_spaces/widgets/sidebar_header.dart
+++ b/lib/pages/spaces_management/all_spaces/widgets/sidebar_header.dart
@@ -5,13 +5,15 @@ import 'package:syncrow_web/utils/extension/build_context_x.dart';
 import 'package:syncrow_web/utils/style.dart';
 
 class SidebarHeader extends StatelessWidget {
-  const SidebarHeader({super.key});
+  const SidebarHeader({required this.existingCommunityNames, super.key});
+
+  final List<String> existingCommunityNames;
 
   @override
   Widget build(BuildContext context) {
     return Container(
       decoration: subSectionContainerDecoration,
-      padding: const EdgeInsets.all(16.0),
+      padding: const EdgeInsets.all(16),
       child: Row(
         mainAxisAlignment: MainAxisAlignment.spaceBetween,
         children: [
@@ -21,7 +23,7 @@ class SidebarHeader extends StatelessWidget {
               color: ColorsManager.blackColor,
             ),
           ),
-          const SidebarAddCommunityButton(),
+          SidebarAddCommunityButton(existingCommunityNames: existingCommunityNames),
         ],
       ),
     );
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 b103184e..35bb8ad2 100644
--- a/lib/pages/spaces_management/all_spaces/widgets/sidebar_widget.dart
+++ b/lib/pages/spaces_management/all_spaces/widgets/sidebar_widget.dart
@@ -94,7 +94,10 @@ class _SidebarWidgetState extends State<SidebarWidget> {
         mainAxisSize: MainAxisSize.min,
         crossAxisAlignment: CrossAxisAlignment.start,
         children: [
-          const SidebarHeader(),
+          SidebarHeader(
+            existingCommunityNames:
+                widget.communities.map((community) => community.name).toList(),
+          ),
           CustomSearchBar(
             onSearchChanged: (query) => setState(() => _searchQuery = query),
           ),