diff --git a/src/Compiler/Microsoft.CodeAnalysis.Razor.Compiler/src/CSharp/ComponentTagHelperDescriptorProvider.cs b/src/Compiler/Microsoft.CodeAnalysis.Razor.Compiler/src/CSharp/ComponentTagHelperDescriptorProvider.cs
index 26e350f2aea..af5ff495588 100644
--- a/src/Compiler/Microsoft.CodeAnalysis.Razor.Compiler/src/CSharp/ComponentTagHelperDescriptorProvider.cs
+++ b/src/Compiler/Microsoft.CodeAnalysis.Razor.Compiler/src/CSharp/ComponentTagHelperDescriptorProvider.cs
@@ -6,6 +6,7 @@
 using System;
 using System.Collections.Generic;
 using System.Collections.Immutable;
+using System.Diagnostics;
 using System.Diagnostics.CodeAnalysis;
 using System.Linq;
 using Microsoft.AspNetCore.Razor.Language;
@@ -171,6 +172,20 @@ private static TagHelperDescriptor CreateNameMatchingDescriptor(
                 builder.SetDocumentation(xml);
             }
 
+            // Collect properties exist with different casing.
+            using var caseSensitiveProperties = StringHashSetPool.OrdinalIgnoreCase.GetPooledObject();
+            using (var caseInsensitivePropertyNameMap = StringDictionaryPool<string>.OrdinalIgnoreCase.GetPooledObject())
+            {
+                foreach (var (property, _) in properties)
+                {
+                    var existingPropertyName = caseInsensitivePropertyNameMap.Object.GetOrAdd(property.Name, property.Name);
+                    if (existingPropertyName != property.Name)
+                    {
+                        caseSensitiveProperties.Object.Add(property.Name);
+                    }
+                }
+            }
+
             foreach (var (property, kind) in properties)
             {
                 if (kind == PropertyKind.Ignored)
@@ -178,7 +193,7 @@ private static TagHelperDescriptor CreateNameMatchingDescriptor(
                     continue;
                 }
 
-                CreateProperty(builder, type, property, kind);
+                CreateProperty(builder, type, property, kind, caseSensitiveProperties.Object);
             }
 
             if (builder.BoundAttributes.Any(static a => a.IsParameterizedChildContentProperty()) &&
@@ -195,7 +210,7 @@ private static TagHelperDescriptor CreateNameMatchingDescriptor(
             return builder.Build();
         }
 
-        private static void CreateProperty(TagHelperDescriptorBuilder builder, INamedTypeSymbol containingSymbol, IPropertySymbol property, PropertyKind kind)
+        private static void CreateProperty(TagHelperDescriptorBuilder builder, INamedTypeSymbol containingSymbol, IPropertySymbol property, PropertyKind kind, ISet<string> caseSensitiveProperties)
         {
             builder.BindAttribute(pb =>
             {
@@ -207,6 +222,8 @@ private static void CreateProperty(TagHelperDescriptorBuilder builder, INamedTyp
                 pb.IsEditorRequired = property.GetAttributes().Any(
                     static a => a.AttributeClass.HasFullName("Microsoft.AspNetCore.Components.EditorRequiredAttribute"));
 
+                pb.CaseSensitive = caseSensitiveProperties.Contains(property.Name);
+
                 metadata.Add(PropertyName(property.Name));
                 metadata.Add(GloballyQualifiedTypeName(property.Type.ToDisplayString(GloballyQualifiedFullNameTypeDisplayFormat)));
 
diff --git a/src/Compiler/Microsoft.CodeAnalysis.Razor.Compiler/src/Language/BoundAttributeDescriptorBuilder.cs b/src/Compiler/Microsoft.CodeAnalysis.Razor.Compiler/src/Language/BoundAttributeDescriptorBuilder.cs
index 77c347e9808..071c20535fe 100644
--- a/src/Compiler/Microsoft.CodeAnalysis.Razor.Compiler/src/Language/BoundAttributeDescriptorBuilder.cs
+++ b/src/Compiler/Microsoft.CodeAnalysis.Razor.Compiler/src/Language/BoundAttributeDescriptorBuilder.cs
@@ -39,6 +39,7 @@ public sealed partial class BoundAttributeDescriptorBuilder : TagHelperObjectBui
     private string _kind;
     private DocumentationObject _documentationObject;
     private MetadataHolder _metadata;
+    private bool? _caseSensitive;
 
     private BoundAttributeDescriptorBuilder()
     {
@@ -76,7 +77,11 @@ public string? Documentation
     public bool TryGetMetadataValue(string key, [NotNullWhen(true)] out string? value)
         => _metadata.TryGetMetadataValue(key, out value);
 
-    internal bool CaseSensitive => _parent.CaseSensitive;
+    internal bool CaseSensitive
+    {
+        get => _caseSensitive ?? _parent.CaseSensitive;
+        set => _caseSensitive = value;
+    }
 
     private TagHelperObjectBuilderCollection<BoundAttributeParameterDescriptor, BoundAttributeParameterDescriptorBuilder> Parameters { get; }
         = new(BoundAttributeParameterDescriptorBuilder.Pool);
diff --git a/src/Compiler/Microsoft.CodeAnalysis.Razor.Compiler/src/Language/BoundAttributeDescriptorBuilder_Pooling.cs b/src/Compiler/Microsoft.CodeAnalysis.Razor.Compiler/src/Language/BoundAttributeDescriptorBuilder_Pooling.cs
index 24ca4757aa6..28d66b2ab4a 100644
--- a/src/Compiler/Microsoft.CodeAnalysis.Razor.Compiler/src/Language/BoundAttributeDescriptorBuilder_Pooling.cs
+++ b/src/Compiler/Microsoft.CodeAnalysis.Razor.Compiler/src/Language/BoundAttributeDescriptorBuilder_Pooling.cs
@@ -25,6 +25,7 @@ private protected override void Reset()
         _parent = null;
         _kind = null;
         _documentationObject = default;
+        _caseSensitive = null;
 
         Name = null;
         TypeName = null;