diff --git a/StyleCop.Analyzers/StyleCop.Analyzers/Lightup/TypeDeclarationSyntaxExtensions.cs b/StyleCop.Analyzers/StyleCop.Analyzers/Lightup/TypeDeclarationSyntaxExtensions.cs
new file mode 100644
index 000000000..64140adb3
--- /dev/null
+++ b/StyleCop.Analyzers/StyleCop.Analyzers/Lightup/TypeDeclarationSyntaxExtensions.cs
@@ -0,0 +1,29 @@
+// Copyright (c) Tunnel Vision Laboratories, LLC. All Rights Reserved.
+// Licensed under the MIT License. See LICENSE in the project root for license information.
+
+namespace StyleCop.Analyzers.Lightup;
+
+using System;
+using Microsoft.CodeAnalysis.CSharp.Syntax;
+
+internal static class TypeDeclarationSyntaxExtensions
+{
+    private static readonly Func<TypeDeclarationSyntax, ParameterListSyntax?> ParameterListAccessor;
+    private static readonly Func<TypeDeclarationSyntax, ParameterListSyntax?, TypeDeclarationSyntax> WithParameterListAccessor;
+
+    static TypeDeclarationSyntaxExtensions()
+    {
+        ParameterListAccessor = LightupHelpers.CreateSyntaxPropertyAccessor<TypeDeclarationSyntax, ParameterListSyntax>(typeof(TypeDeclarationSyntax), nameof(ParameterList));
+        WithParameterListAccessor = LightupHelpers.CreateSyntaxWithPropertyAccessor<TypeDeclarationSyntax, ParameterListSyntax?>(typeof(TypeDeclarationSyntax), nameof(ParameterList));
+    }
+
+    public static ParameterListSyntax? ParameterList(this TypeDeclarationSyntax syntax)
+    {
+        return ParameterListAccessor(syntax);
+    }
+
+    public static TypeDeclarationSyntax WithParameterList(this TypeDeclarationSyntax syntax, ParameterListSyntax? parameterList)
+    {
+        return WithParameterListAccessor(syntax, parameterList);
+    }
+}