diff --git a/lib/pages/space_management_v2/modules/space_details/presentation/widgets/subspace_name_display_widget.dart b/lib/pages/space_management_v2/modules/space_details/presentation/widgets/subspace_name_display_widget.dart
index 9169efda..bbc9549d 100644
--- a/lib/pages/space_management_v2/modules/space_details/presentation/widgets/subspace_name_display_widget.dart
+++ b/lib/pages/space_management_v2/modules/space_details/presentation/widgets/subspace_name_display_widget.dart
@@ -18,7 +18,9 @@ class SubspaceNameDisplayWidget extends StatefulWidget {
 class _SubspaceNameDisplayWidgetState extends State<SubspaceNameDisplayWidget> {
   late final TextEditingController _controller;
   late final FocusNode _focusNode;
-  bool isEditing = false;
+  bool _isEditing = false;
+  bool _hasDuplicateName = false;
+
   @override
   void initState() {
     _controller = TextEditingController(text: widget.subSpace.name);
@@ -33,6 +35,41 @@ class _SubspaceNameDisplayWidgetState extends State<SubspaceNameDisplayWidget> {
     super.dispose();
   }
 
+  bool _checkForDuplicateName(String name) {
+    final bloc = context.read<SpaceDetailsModelBloc>();
+    return bloc.state.subspaces
+        .where((s) => s.uuid != widget.subSpace.uuid)
+        .any((s) => s.name.toLowerCase() == name.toLowerCase());
+  }
+
+  void _handleNameChange(String value) {
+    setState(() {
+      _hasDuplicateName = _checkForDuplicateName(value);
+    });
+  }
+
+  void _tryToFinishEditing() {
+    if (!_hasDuplicateName) {
+      _onFinishEditing();
+    }
+  }
+
+  void _tryToSubmit(String value) {
+    if (_hasDuplicateName) return;
+
+    final bloc = context.read<SpaceDetailsModelBloc>();
+    bloc.add(
+      UpdateSpaceDetailsSubspaces(
+        bloc.state.subspaces
+            .map(
+              (e) => e.uuid == widget.subSpace.uuid ? e.copyWith(name: value) : e,
+            )
+            .toList(),
+      ),
+    );
+    _onFinishEditing();
+  }
+
   @override
   Widget build(BuildContext context) {
     final textStyle = context.textTheme.bodySmall?.copyWith(
@@ -40,7 +77,7 @@ class _SubspaceNameDisplayWidgetState extends State<SubspaceNameDisplayWidget> {
     );
     return InkWell(
       onTap: () {
-        setState(() => isEditing = true);
+        setState(() => _isEditing = true);
         _focusNode.requestFocus();
       },
       child: Chip(
@@ -49,36 +86,48 @@ class _SubspaceNameDisplayWidgetState extends State<SubspaceNameDisplayWidget> {
           borderRadius: BorderRadius.circular(10),
         ),
         label: Visibility(
-          visible: isEditing,
+          visible: _isEditing,
           replacement: Text(
             widget.subSpace.name,
             style: textStyle,
           ),
-          child: SizedBox(
-            width: context.screenWidth * 0.065,
-            height: context.screenHeight * 0.025,
-            child: TextField(
-              focusNode: _focusNode,
-              controller: _controller,
-              style: textStyle,
-              decoration: const InputDecoration.collapsed(hintText: ''),
-              onTapOutside: (_) => _onFinishEditing(),
-              onSubmitted: (value) {
-                final bloc = context.read<SpaceDetailsModelBloc>();
-                bloc.add(
-                  UpdateSpaceDetailsSubspaces(
-                    bloc.state.subspaces
-                        .map(
-                          (e) => e.uuid == widget.subSpace.uuid
-                              ? e.copyWith(name: value)
-                              : e,
-                        )
-                        .toList(),
+          child: Column(
+            mainAxisSize: MainAxisSize.min,
+            crossAxisAlignment: CrossAxisAlignment.start,
+            children: [
+              SizedBox(
+                width: context.screenWidth * 0.065,
+                height: context.screenHeight * 0.025,
+                child: TextField(
+                  focusNode: _focusNode,
+                  controller: _controller,
+                  style: textStyle?.copyWith(
+                    color: _hasDuplicateName ? Colors.red : null,
                   ),
-                );
-                _onFinishEditing();
-              },
-            ),
+                  decoration: const InputDecoration.collapsed(
+                    hintText: '',
+                  ),
+                  onChanged: _handleNameChange,
+                  onTapOutside: (_) => _tryToFinishEditing(),
+                  onSubmitted: _tryToSubmit,
+                ),
+              ),
+              if (_hasDuplicateName)
+                AnimatedSwitcher(
+                  duration: const Duration(milliseconds: 250),
+                  child: Visibility(
+                    key: ValueKey(_hasDuplicateName),
+                    visible: _hasDuplicateName,
+                    child: Text(
+                      'Name already exists',
+                      style: textStyle?.copyWith(
+                        color: Colors.red,
+                        fontSize: 8,
+                      ),
+                    ),
+                  ),
+                ),
+            ],
           ),
         ),
       ),
@@ -86,7 +135,10 @@ class _SubspaceNameDisplayWidgetState extends State<SubspaceNameDisplayWidget> {
   }
 
   void _onFinishEditing() {
-    setState(() => isEditing = false);
+    setState(() {
+      _isEditing = false;
+      _hasDuplicateName = false;
+    });
     _focusNode.unfocus();
   }
 }