diff --git a/BUILD b/BUILD
index b56b31470f9..c8c00b095a7 100644
--- a/BUILD
+++ b/BUILD
@@ -2645,6 +2645,7 @@ grpc_cc_library(
         "src/core/ext/xds/xds_http_filters.h",
         "src/core/ext/xds/xds_listener.h",
         "src/core/ext/xds/xds_resource_type.h",
+        "src/core/ext/xds/xds_resource_type_impl.h",
         "src/core/ext/xds/xds_route_config.h",
         "src/core/ext/xds/xds_routing.h",
         "src/core/lib/security/credentials/xds/xds_credentials.h",
diff --git a/build_autogenerated.yaml b/build_autogenerated.yaml
index 4661739ec5e..b4f16357c9d 100644
--- a/build_autogenerated.yaml
+++ b/build_autogenerated.yaml
@@ -728,6 +728,7 @@ libs:
   - src/core/ext/xds/xds_http_filters.h
   - src/core/ext/xds/xds_listener.h
   - src/core/ext/xds/xds_resource_type.h
+  - src/core/ext/xds/xds_resource_type_impl.h
   - src/core/ext/xds/xds_route_config.h
   - src/core/ext/xds/xds_routing.h
   - src/core/lib/address_utils/parse_address.h
diff --git a/gRPC-C++.podspec b/gRPC-C++.podspec
index 8a42c509ef1..0c4046e2ba9 100644
--- a/gRPC-C++.podspec
+++ b/gRPC-C++.podspec
@@ -565,6 +565,7 @@ Pod::Spec.new do |s|
                       'src/core/ext/xds/xds_http_filters.h',
                       'src/core/ext/xds/xds_listener.h',
                       'src/core/ext/xds/xds_resource_type.h',
+                      'src/core/ext/xds/xds_resource_type_impl.h',
                       'src/core/ext/xds/xds_route_config.h',
                       'src/core/ext/xds/xds_routing.h',
                       'src/core/lib/address_utils/parse_address.h',
@@ -1288,6 +1289,7 @@ Pod::Spec.new do |s|
                               'src/core/ext/xds/xds_http_filters.h',
                               'src/core/ext/xds/xds_listener.h',
                               'src/core/ext/xds/xds_resource_type.h',
+                              'src/core/ext/xds/xds_resource_type_impl.h',
                               'src/core/ext/xds/xds_route_config.h',
                               'src/core/ext/xds/xds_routing.h',
                               'src/core/lib/address_utils/parse_address.h',
diff --git a/gRPC-Core.podspec b/gRPC-Core.podspec
index 2f4761ae343..6878fdca037 100644
--- a/gRPC-Core.podspec
+++ b/gRPC-Core.podspec
@@ -836,6 +836,7 @@ Pod::Spec.new do |s|
                       'src/core/ext/xds/xds_listener.h',
                       'src/core/ext/xds/xds_resource_type.cc',
                       'src/core/ext/xds/xds_resource_type.h',
+                      'src/core/ext/xds/xds_resource_type_impl.h',
                       'src/core/ext/xds/xds_route_config.cc',
                       'src/core/ext/xds/xds_route_config.h',
                       'src/core/ext/xds/xds_routing.cc',
@@ -1825,6 +1826,7 @@ Pod::Spec.new do |s|
                               'src/core/ext/xds/xds_http_filters.h',
                               'src/core/ext/xds/xds_listener.h',
                               'src/core/ext/xds/xds_resource_type.h',
+                              'src/core/ext/xds/xds_resource_type_impl.h',
                               'src/core/ext/xds/xds_route_config.h',
                               'src/core/ext/xds/xds_routing.h',
                               'src/core/lib/address_utils/parse_address.h',
diff --git a/grpc.gemspec b/grpc.gemspec
index 008a4fbb627..0bae8bac833 100644
--- a/grpc.gemspec
+++ b/grpc.gemspec
@@ -755,6 +755,7 @@ Gem::Specification.new do |s|
   s.files += %w( src/core/ext/xds/xds_listener.h )
   s.files += %w( src/core/ext/xds/xds_resource_type.cc )
   s.files += %w( src/core/ext/xds/xds_resource_type.h )
+  s.files += %w( src/core/ext/xds/xds_resource_type_impl.h )
   s.files += %w( src/core/ext/xds/xds_route_config.cc )
   s.files += %w( src/core/ext/xds/xds_route_config.h )
   s.files += %w( src/core/ext/xds/xds_routing.cc )
diff --git a/package.xml b/package.xml
index 0d3df25549c..537aa359472 100644
--- a/package.xml
+++ b/package.xml
@@ -735,6 +735,7 @@
     <file baseinstalldir="/" name="src/core/ext/xds/xds_listener.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/xds/xds_resource_type.cc" role="src" />
     <file baseinstalldir="/" name="src/core/ext/xds/xds_resource_type.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/xds/xds_resource_type_impl.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/xds/xds_route_config.cc" role="src" />
     <file baseinstalldir="/" name="src/core/ext/xds/xds_route_config.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/xds/xds_routing.cc" role="src" />
diff --git a/src/core/ext/filters/client_channel/lb_policy/xds/cds.cc b/src/core/ext/filters/client_channel/lb_policy/xds/cds.cc
index efe4465c5b0..cffba662576 100644
--- a/src/core/ext/filters/client_channel/lb_policy/xds/cds.cc
+++ b/src/core/ext/filters/client_channel/lb_policy/xds/cds.cc
@@ -72,7 +72,7 @@ class CdsLb : public LoadBalancingPolicy {
     ClusterWatcher(RefCountedPtr<CdsLb> parent, std::string name)
         : parent_(std::move(parent)), name_(std::move(name)) {}
 
-    void OnClusterChanged(XdsClusterResource cluster_data) override {
+    void OnResourceChanged(XdsClusterResource cluster_data) override {
       Ref().release();  // Ref held by lambda
       parent_->work_serializer()->Run(
           // TODO(roth): When we move to C++14, capture cluster_data with
diff --git a/src/core/ext/filters/client_channel/lb_policy/xds/xds_cluster_resolver.cc b/src/core/ext/filters/client_channel/lb_policy/xds/xds_cluster_resolver.cc
index e7d7e769d2b..90f422025ff 100644
--- a/src/core/ext/filters/client_channel/lb_policy/xds/xds_cluster_resolver.cc
+++ b/src/core/ext/filters/client_channel/lb_policy/xds/xds_cluster_resolver.cc
@@ -174,13 +174,13 @@ class XdsClusterResolverLb : public LoadBalancingPolicy {
       ~EndpointWatcher() override {
         discovery_mechanism_.reset(DEBUG_LOCATION, "EndpointWatcher");
       }
-      void OnEndpointChanged(XdsEndpointResource update) override {
+      void OnResourceChanged(XdsEndpointResource update) override {
         Ref().release();  // ref held by callback
         discovery_mechanism_->parent()->work_serializer()->Run(
             // TODO(yashykt): When we move to C++14, capture update with
             // std::move
             [this, update]() mutable {
-              OnEndpointChangedHelper(std::move(update));
+              OnResourceChangedHelper(std::move(update));
               Unref();
             },
             DEBUG_LOCATION);
@@ -208,7 +208,7 @@ class XdsClusterResolverLb : public LoadBalancingPolicy {
       // Code accessing protected methods of `DiscoveryMechanism` need to be
       // in methods of this class rather than in lambdas to work around an MSVC
       // bug.
-      void OnEndpointChangedHelper(XdsEndpointResource update) {
+      void OnResourceChangedHelper(XdsEndpointResource update) {
         discovery_mechanism_->parent()->OnEndpointChanged(
             discovery_mechanism_->index(), std::move(update));
       }
diff --git a/src/core/ext/filters/client_channel/resolver/xds/xds_resolver.cc b/src/core/ext/filters/client_channel/resolver/xds/xds_resolver.cc
index 892d478cd27..820f11a9ce5 100644
--- a/src/core/ext/filters/client_channel/resolver/xds/xds_resolver.cc
+++ b/src/core/ext/filters/client_channel/resolver/xds/xds_resolver.cc
@@ -86,7 +86,7 @@ class XdsResolver : public Resolver {
    public:
     explicit ListenerWatcher(RefCountedPtr<XdsResolver> resolver)
         : resolver_(std::move(resolver)) {}
-    void OnListenerChanged(XdsListenerResource listener) override {
+    void OnResourceChanged(XdsListenerResource listener) override {
       Ref().release();  // ref held by lambda
       resolver_->work_serializer_->Run(
           // TODO(yashykt): When we move to C++14, capture listener with
@@ -125,7 +125,7 @@ class XdsResolver : public Resolver {
    public:
     explicit RouteConfigWatcher(RefCountedPtr<XdsResolver> resolver)
         : resolver_(std::move(resolver)) {}
-    void OnRouteConfigChanged(XdsRouteConfigResource route_config) override {
+    void OnResourceChanged(XdsRouteConfigResource route_config) override {
       Ref().release();  // ref held by lambda
       resolver_->work_serializer_->Run(
           // TODO(yashykt): When we move to C++14, capture route_config with
diff --git a/src/core/ext/xds/xds_client.cc b/src/core/ext/xds/xds_client.cc
index 04b57923e6c..4039622f2ea 100644
--- a/src/core/ext/xds/xds_client.cc
+++ b/src/core/ext/xds/xds_client.cc
@@ -887,7 +887,7 @@ void XdsClient::ChannelState::AdsCallState::AdsResponseParser::ParseResource(
       [watchers_list, value]()
           ABSL_EXCLUSIVE_LOCKS_REQUIRED(&xds_client()->work_serializer_) {
             for (const auto& p : watchers_list) {
-              p.first->OnResourceChanged(value);
+              p.first->OnGenericResourceChanged(value);
             }
             delete value;
           },
@@ -1870,7 +1870,7 @@ void XdsClient::WatchResource(const XdsResourceType* type,
       auto* value = type->CopyResource(resource_state.resource.get()).release();
       work_serializer_.Schedule(
           [watcher, value]() ABSL_EXCLUSIVE_LOCKS_REQUIRED(&work_serializer_) {
-            watcher->OnResourceChanged(value);
+            watcher->OnGenericResourceChanged(value);
             delete value;
           },
           DEBUG_LOCATION);
diff --git a/src/core/ext/xds/xds_client.h b/src/core/ext/xds/xds_client.h
index 66fbec26d21..6931a0a3f50 100644
--- a/src/core/ext/xds/xds_client.h
+++ b/src/core/ext/xds/xds_client.h
@@ -51,7 +51,7 @@ class XdsClient : public DualRefCounted<XdsClient> {
   // XdsResourceType implementation.
   class ResourceWatcherInterface : public RefCounted<ResourceWatcherInterface> {
    public:
-    virtual void OnResourceChanged(
+    virtual void OnGenericResourceChanged(
         const XdsResourceType::ResourceData* resource)
         ABSL_EXCLUSIVE_LOCKS_REQUIRED(&work_serializer_) = 0;
     virtual void OnError(grpc_error_handle error)
diff --git a/src/core/ext/xds/xds_cluster.cc b/src/core/ext/xds/xds_cluster.cc
index 5e7f2662441..db9928fd1a3 100644
--- a/src/core/ext/xds/xds_cluster.cc
+++ b/src/core/ext/xds/xds_cluster.cc
@@ -427,7 +427,7 @@ absl::StatusOr<XdsResourceType::DecodeResult> XdsClusterResourceType::Decode(
   DecodeResult result;
   result.name =
       UpbStringToStdString(envoy_config_cluster_v3_Cluster_name(resource));
-  auto cluster_data = absl::make_unique<ClusterData>();
+  auto cluster_data = absl::make_unique<ResourceDataSubclass>();
   grpc_error_handle error =
       CdsResourceParse(context, resource, is_v2, &cluster_data->resource);
   if (error != GRPC_ERROR_NONE) {
diff --git a/src/core/ext/xds/xds_cluster.h b/src/core/ext/xds/xds_cluster.h
index 4600bfc5f48..a78475324bb 100644
--- a/src/core/ext/xds/xds_cluster.h
+++ b/src/core/ext/xds/xds_cluster.h
@@ -29,7 +29,7 @@
 
 #include "src/core/ext/xds/xds_client.h"
 #include "src/core/ext/xds/xds_common_types.h"
-#include "src/core/ext/xds/xds_resource_type.h"
+#include "src/core/ext/xds/xds_resource_type_impl.h"
 
 namespace grpc_core {
 
@@ -82,31 +82,9 @@ struct XdsClusterResource {
   std::string ToString() const;
 };
 
-class XdsClusterResourceType : public XdsResourceType {
+class XdsClusterResourceType
+    : public XdsResourceTypeImpl<XdsClusterResourceType, XdsClusterResource> {
  public:
-  struct ClusterData : public ResourceData {
-    XdsClusterResource resource;
-  };
-
-  class WatcherInterface : public XdsClient::ResourceWatcherInterface {
-   public:
-    virtual void OnClusterChanged(XdsClusterResource cluster_data) = 0;
-
-   private:
-    void OnResourceChanged(
-        const XdsResourceType::ResourceData* resource) override {
-      OnClusterChanged(
-          static_cast<const XdsClusterResourceType::ClusterData*>(resource)
-              ->resource);
-    }
-  };
-
-  static const XdsClusterResourceType* Get() {
-    static const XdsClusterResourceType* g_instance =
-        new XdsClusterResourceType();
-    return g_instance;
-  }
-
   absl::string_view type_url() const override {
     return "envoy.config.cluster.v3.Cluster";
   }
@@ -114,37 +92,10 @@ class XdsClusterResourceType : public XdsResourceType {
     return "envoy.api.v2.Cluster";
   }
 
-  static void StartWatch(XdsClient* xds_client, absl::string_view resource_name,
-                         RefCountedPtr<WatcherInterface> watcher) {
-    xds_client->WatchResource(Get(), resource_name, std::move(watcher));
-  }
-
-  static void CancelWatch(XdsClient* xds_client,
-                          absl::string_view resource_name,
-                          WatcherInterface* watcher,
-                          bool delay_unsubscription = false) {
-    xds_client->CancelResourceWatch(Get(), resource_name, watcher,
-                                    delay_unsubscription);
-  }
-
   absl::StatusOr<DecodeResult> Decode(const XdsEncodingContext& context,
                                       absl::string_view serialized_resource,
                                       bool is_v2) const override;
 
-  bool ResourcesEqual(const ResourceData* r1,
-                      const ResourceData* r2) const override {
-    return static_cast<const ClusterData*>(r1)->resource ==
-           static_cast<const ClusterData*>(r2)->resource;
-  }
-
-  std::unique_ptr<ResourceData> CopyResource(
-      const ResourceData* resource) const override {
-    auto* resource_copy = new ClusterData();
-    resource_copy->resource =
-        static_cast<const ClusterData*>(resource)->resource;
-    return std::unique_ptr<ResourceData>(resource_copy);
-  }
-
   bool AllResourcesRequiredInSotW() const override { return true; }
 
   void InitUpbSymtab(upb_symtab* symtab) const override {
diff --git a/src/core/ext/xds/xds_endpoint.cc b/src/core/ext/xds/xds_endpoint.cc
index 3d37c1b0e42..5bf9530cea8 100644
--- a/src/core/ext/xds/xds_endpoint.cc
+++ b/src/core/ext/xds/xds_endpoint.cc
@@ -338,7 +338,7 @@ absl::StatusOr<XdsResourceType::DecodeResult> XdsEndpointResourceType::Decode(
   DecodeResult result;
   result.name = UpbStringToStdString(
       envoy_config_endpoint_v3_ClusterLoadAssignment_cluster_name(resource));
-  auto endpoint_data = absl::make_unique<EndpointData>();
+  auto endpoint_data = absl::make_unique<ResourceDataSubclass>();
   grpc_error_handle error =
       EdsResourceParse(context, resource, is_v2, &endpoint_data->resource);
   if (error != GRPC_ERROR_NONE) {
diff --git a/src/core/ext/xds/xds_endpoint.h b/src/core/ext/xds/xds_endpoint.h
index d47e263a1d4..06ac4920563 100644
--- a/src/core/ext/xds/xds_endpoint.h
+++ b/src/core/ext/xds/xds_endpoint.h
@@ -29,7 +29,7 @@
 #include "src/core/ext/filters/client_channel/server_address.h"
 #include "src/core/ext/xds/xds_client.h"
 #include "src/core/ext/xds/xds_client_stats.h"
-#include "src/core/ext/xds/xds_resource_type.h"
+#include "src/core/ext/xds/xds_resource_type_impl.h"
 #include "src/core/lib/gprpp/ref_counted_ptr.h"
 
 namespace grpc_core {
@@ -111,31 +111,9 @@ struct XdsEndpointResource {
   std::string ToString() const;
 };
 
-class XdsEndpointResourceType : public XdsResourceType {
+class XdsEndpointResourceType
+    : public XdsResourceTypeImpl<XdsEndpointResourceType, XdsEndpointResource> {
  public:
-  struct EndpointData : public ResourceData {
-    XdsEndpointResource resource;
-  };
-
-  class WatcherInterface : public XdsClient::ResourceWatcherInterface {
-   public:
-    virtual void OnEndpointChanged(XdsEndpointResource update) = 0;
-
-   private:
-    void OnResourceChanged(
-        const XdsResourceType::ResourceData* resource) override {
-      OnEndpointChanged(
-          static_cast<const XdsEndpointResourceType::EndpointData*>(resource)
-              ->resource);
-    }
-  };
-
-  static const XdsEndpointResourceType* Get() {
-    static const XdsEndpointResourceType* g_instance =
-        new XdsEndpointResourceType();
-    return g_instance;
-  }
-
   absl::string_view type_url() const override {
     return "envoy.config.endpoint.v3.ClusterLoadAssignment";
   }
@@ -143,37 +121,10 @@ class XdsEndpointResourceType : public XdsResourceType {
     return "envoy.api.v2.ClusterLoadAssignment";
   }
 
-  static void StartWatch(XdsClient* xds_client, absl::string_view resource_name,
-                         RefCountedPtr<WatcherInterface> watcher) {
-    xds_client->WatchResource(Get(), resource_name, std::move(watcher));
-  }
-
-  static void CancelWatch(XdsClient* xds_client,
-                          absl::string_view resource_name,
-                          WatcherInterface* watcher,
-                          bool delay_unsubscription = false) {
-    xds_client->CancelResourceWatch(Get(), resource_name, watcher,
-                                    delay_unsubscription);
-  }
-
   absl::StatusOr<DecodeResult> Decode(const XdsEncodingContext& context,
                                       absl::string_view serialized_resource,
                                       bool is_v2) const override;
 
-  bool ResourcesEqual(const ResourceData* r1,
-                      const ResourceData* r2) const override {
-    return static_cast<const EndpointData*>(r1)->resource ==
-           static_cast<const EndpointData*>(r2)->resource;
-  }
-
-  std::unique_ptr<ResourceData> CopyResource(
-      const ResourceData* resource) const override {
-    auto* resource_copy = new EndpointData();
-    resource_copy->resource =
-        static_cast<const EndpointData*>(resource)->resource;
-    return std::unique_ptr<ResourceData>(resource_copy);
-  }
-
   void InitUpbSymtab(upb_symtab* symtab) const override {
     envoy_config_endpoint_v3_ClusterLoadAssignment_getmsgdef(symtab);
   }
diff --git a/src/core/ext/xds/xds_listener.cc b/src/core/ext/xds/xds_listener.cc
index 75d65b40d1e..8d797dbd231 100644
--- a/src/core/ext/xds/xds_listener.cc
+++ b/src/core/ext/xds/xds_listener.cc
@@ -997,7 +997,7 @@ absl::StatusOr<XdsResourceType::DecodeResult> XdsListenerResourceType::Decode(
   DecodeResult result;
   result.name =
       UpbStringToStdString(envoy_config_listener_v3_Listener_name(resource));
-  auto listener_data = absl::make_unique<ListenerData>();
+  auto listener_data = absl::make_unique<ResourceDataSubclass>();
   grpc_error_handle error =
       LdsResourceParse(context, resource, is_v2, &listener_data->resource);
   if (error != GRPC_ERROR_NONE) {
diff --git a/src/core/ext/xds/xds_listener.h b/src/core/ext/xds/xds_listener.h
index 151a8aee75d..a8a5635fd56 100644
--- a/src/core/ext/xds/xds_listener.h
+++ b/src/core/ext/xds/xds_listener.h
@@ -33,6 +33,7 @@
 #include "src/core/ext/xds/xds_client.h"
 #include "src/core/ext/xds/xds_common_types.h"
 #include "src/core/ext/xds/xds_http_filters.h"
+#include "src/core/ext/xds/xds_resource_type_impl.h"
 #include "src/core/ext/xds/xds_route_config.h"
 
 namespace grpc_core {
@@ -190,31 +191,9 @@ struct XdsListenerResource {
   std::string ToString() const;
 };
 
-class XdsListenerResourceType : public XdsResourceType {
+class XdsListenerResourceType
+    : public XdsResourceTypeImpl<XdsListenerResourceType, XdsListenerResource> {
  public:
-  struct ListenerData : public ResourceData {
-    XdsListenerResource resource;
-  };
-
-  class WatcherInterface : public XdsClient::ResourceWatcherInterface {
-   public:
-    virtual void OnListenerChanged(XdsListenerResource listener) = 0;
-
-   private:
-    void OnResourceChanged(
-        const XdsResourceType::ResourceData* resource) override {
-      OnListenerChanged(
-          static_cast<const XdsListenerResourceType::ListenerData*>(resource)
-              ->resource);
-    }
-  };
-
-  static const XdsListenerResourceType* Get() {
-    static const XdsListenerResourceType* g_instance =
-        new XdsListenerResourceType();
-    return g_instance;
-  }
-
   absl::string_view type_url() const override {
     return "envoy.config.listener.v3.Listener";
   }
@@ -222,37 +201,10 @@ class XdsListenerResourceType : public XdsResourceType {
     return "envoy.api.v2.Listener";
   }
 
-  static void StartWatch(XdsClient* xds_client, absl::string_view resource_name,
-                         RefCountedPtr<WatcherInterface> watcher) {
-    xds_client->WatchResource(Get(), resource_name, std::move(watcher));
-  }
-
-  static void CancelWatch(XdsClient* xds_client,
-                          absl::string_view resource_name,
-                          WatcherInterface* watcher,
-                          bool delay_unsubscription = false) {
-    xds_client->CancelResourceWatch(Get(), resource_name, watcher,
-                                    delay_unsubscription);
-  }
-
   absl::StatusOr<DecodeResult> Decode(const XdsEncodingContext& context,
                                       absl::string_view serialized_resource,
                                       bool is_v2) const override;
 
-  bool ResourcesEqual(const ResourceData* r1,
-                      const ResourceData* r2) const override {
-    return static_cast<const ListenerData*>(r1)->resource ==
-           static_cast<const ListenerData*>(r2)->resource;
-  }
-
-  std::unique_ptr<ResourceData> CopyResource(
-      const ResourceData* resource) const override {
-    auto* resource_copy = new ListenerData();
-    resource_copy->resource =
-        static_cast<const ListenerData*>(resource)->resource;
-    return std::unique_ptr<ResourceData>(resource_copy);
-  }
-
   bool AllResourcesRequiredInSotW() const override { return true; }
 
   void InitUpbSymtab(upb_symtab* symtab) const override {
diff --git a/src/core/ext/xds/xds_resource_type_impl.h b/src/core/ext/xds/xds_resource_type_impl.h
new file mode 100644
index 00000000000..94ebe8edeaa
--- /dev/null
+++ b/src/core/ext/xds/xds_resource_type_impl.h
@@ -0,0 +1,87 @@
+//
+// Copyright 2021 gRPC authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/ext/xds/xds_client.h"
+#include "src/core/ext/xds/xds_resource_type.h"
+
+#ifndef GRPC_CORE_EXT_XDS_XDS_RESOURCE_TYPE_IMPL_H
+#define GRPC_CORE_EXT_XDS_XDS_RESOURCE_TYPE_IMPL_H
+
+namespace grpc_core {
+
+// Base class for XdsResourceType implementations.
+// Handles all down-casting logic for a particular resource type struct.
+template <typename Subclass, typename ResourceTypeStruct>
+class XdsResourceTypeImpl : public XdsResourceType {
+ public:
+  struct ResourceDataSubclass : public ResourceData {
+    ResourceTypeStruct resource;
+  };
+
+  // XdsClient watcher that handles down-casting.
+  class WatcherInterface : public XdsClient::ResourceWatcherInterface {
+   public:
+    virtual void OnResourceChanged(ResourceTypeStruct listener) = 0;
+
+   private:
+    // Get result from XdsClient generic watcher interface, perform
+    // down-casting, and invoke the caller's OnListenerChanged() method.
+    void OnGenericResourceChanged(
+        const XdsResourceType::ResourceData* resource) override {
+      OnResourceChanged(
+          static_cast<const ResourceDataSubclass*>(resource)->resource);
+    }
+  };
+
+  static const Subclass* Get() {
+    static const Subclass* g_instance = new Subclass();
+    return g_instance;
+  }
+
+  // Convenient wrappers around XdsClient generic watcher API that provide
+  // type-safety.
+  static void StartWatch(XdsClient* xds_client, absl::string_view resource_name,
+                         RefCountedPtr<WatcherInterface> watcher) {
+    xds_client->WatchResource(Get(), resource_name, std::move(watcher));
+  }
+  static void CancelWatch(XdsClient* xds_client,
+                          absl::string_view resource_name,
+                          WatcherInterface* watcher,
+                          bool delay_unsubscription = false) {
+    xds_client->CancelResourceWatch(Get(), resource_name, watcher,
+                                    delay_unsubscription);
+  }
+
+  bool ResourcesEqual(const ResourceData* r1,
+                      const ResourceData* r2) const override {
+    return static_cast<const ResourceDataSubclass*>(r1)->resource ==
+           static_cast<const ResourceDataSubclass*>(r2)->resource;
+  }
+
+  std::unique_ptr<ResourceData> CopyResource(
+      const ResourceData* resource) const override {
+    auto* resource_copy = new ResourceDataSubclass();
+    resource_copy->resource =
+        static_cast<const ResourceDataSubclass*>(resource)->resource;
+    return std::unique_ptr<ResourceData>(resource_copy);
+  }
+};
+
+}  // namespace grpc_core
+
+#endif  // GRPC_CORE_EXT_XDS_XDS_RESOURCE_TYPE_IMPL_H
diff --git a/src/core/ext/xds/xds_route_config.cc b/src/core/ext/xds/xds_route_config.cc
index 618772c5d6a..fa4c85143f1 100644
--- a/src/core/ext/xds/xds_route_config.cc
+++ b/src/core/ext/xds/xds_route_config.cc
@@ -968,7 +968,7 @@ XdsRouteConfigResourceType::Decode(const XdsEncodingContext& context,
   DecodeResult result;
   result.name = UpbStringToStdString(
       envoy_config_route_v3_RouteConfiguration_name(resource));
-  auto route_config_data = absl::make_unique<RouteConfigData>();
+  auto route_config_data = absl::make_unique<ResourceDataSubclass>();
   grpc_error_handle error = XdsRouteConfigResource::Parse(
       context, resource, &route_config_data->resource);
   if (error != GRPC_ERROR_NONE) {
diff --git a/src/core/ext/xds/xds_route_config.h b/src/core/ext/xds/xds_route_config.h
index f96a2c0ef2f..73c558e783f 100644
--- a/src/core/ext/xds/xds_route_config.h
+++ b/src/core/ext/xds/xds_route_config.h
@@ -32,7 +32,7 @@
 #include "src/core/ext/xds/xds_client.h"
 #include "src/core/ext/xds/xds_common_types.h"
 #include "src/core/ext/xds/xds_http_filters.h"
-#include "src/core/ext/xds/xds_resource_type.h"
+#include "src/core/ext/xds/xds_resource_type_impl.h"
 #include "src/core/lib/channel/status_util.h"
 #include "src/core/lib/matchers/matchers.h"
 
@@ -190,32 +190,10 @@ struct XdsRouteConfigResource {
       XdsRouteConfigResource* rds_update);
 };
 
-class XdsRouteConfigResourceType : public XdsResourceType {
+class XdsRouteConfigResourceType
+    : public XdsResourceTypeImpl<XdsRouteConfigResourceType,
+                                 XdsRouteConfigResource> {
  public:
-  struct RouteConfigData : public ResourceData {
-    XdsRouteConfigResource resource;
-  };
-
-  class WatcherInterface : public XdsClient::ResourceWatcherInterface {
-   public:
-    virtual void OnRouteConfigChanged(XdsRouteConfigResource route_config) = 0;
-
-   private:
-    void OnResourceChanged(
-        const XdsResourceType::ResourceData* resource) override {
-      OnRouteConfigChanged(
-          static_cast<const XdsRouteConfigResourceType::RouteConfigData*>(
-              resource)
-              ->resource);
-    }
-  };
-
-  static const XdsRouteConfigResourceType* Get() {
-    static const XdsRouteConfigResourceType* g_instance =
-        new XdsRouteConfigResourceType();
-    return g_instance;
-  }
-
   absl::string_view type_url() const override {
     return "envoy.config.route.v3.RouteConfiguration";
   }
@@ -223,37 +201,10 @@ class XdsRouteConfigResourceType : public XdsResourceType {
     return "envoy.api.v2.RouteConfiguration";
   }
 
-  static void StartWatch(XdsClient* xds_client, absl::string_view resource_name,
-                         RefCountedPtr<WatcherInterface> watcher) {
-    xds_client->WatchResource(Get(), resource_name, std::move(watcher));
-  }
-
-  static void CancelWatch(XdsClient* xds_client,
-                          absl::string_view resource_name,
-                          WatcherInterface* watcher,
-                          bool delay_unsubscription = false) {
-    xds_client->CancelResourceWatch(Get(), resource_name, watcher,
-                                    delay_unsubscription);
-  }
-
   absl::StatusOr<DecodeResult> Decode(const XdsEncodingContext& context,
                                       absl::string_view serialized_resource,
                                       bool /*is_v2*/) const override;
 
-  bool ResourcesEqual(const ResourceData* r1,
-                      const ResourceData* r2) const override {
-    return static_cast<const RouteConfigData*>(r1)->resource ==
-           static_cast<const RouteConfigData*>(r2)->resource;
-  }
-
-  std::unique_ptr<ResourceData> CopyResource(
-      const ResourceData* resource) const override {
-    auto* resource_copy = new RouteConfigData();
-    resource_copy->resource =
-        static_cast<const RouteConfigData*>(resource)->resource;
-    return std::unique_ptr<ResourceData>(resource_copy);
-  }
-
   void InitUpbSymtab(upb_symtab* symtab) const override {
     envoy_config_route_v3_RouteConfiguration_getmsgdef(symtab);
   }
diff --git a/src/core/ext/xds/xds_server_config_fetcher.cc b/src/core/ext/xds/xds_server_config_fetcher.cc
index 6d0c3d0e6be..5b7bbef1457 100644
--- a/src/core/ext/xds/xds_server_config_fetcher.cc
+++ b/src/core/ext/xds/xds_server_config_fetcher.cc
@@ -96,7 +96,7 @@ class XdsServerConfigFetcher::ListenerWatcher
                   grpc_server_xds_status_notifier serving_status_notifier,
                   std::string listening_address);
 
-  void OnListenerChanged(XdsListenerResource listener) override;
+  void OnResourceChanged(XdsListenerResource listener) override;
 
   void OnError(grpc_error_handle error) override;
 
@@ -227,7 +227,7 @@ class XdsServerConfigFetcher::ListenerWatcher::FilterChainMatchManager::
       : resource_name_(std::move(resource_name)),
         filter_chain_match_manager_(std::move(filter_chain_match_manager)) {}
 
-  void OnRouteConfigChanged(XdsRouteConfigResource route_config) override {
+  void OnResourceChanged(XdsRouteConfigResource route_config) override {
     filter_chain_match_manager_->OnRouteConfigChanged(resource_name_,
                                                       std::move(route_config));
   }
@@ -389,7 +389,7 @@ class XdsServerConfigFetcher::ListenerWatcher::FilterChainMatchManager::
       RefCountedPtr<DynamicXdsServerConfigSelectorProvider> parent)
       : parent_(std::move(parent)) {}
 
-  void OnRouteConfigChanged(XdsRouteConfigResource route_config) override {
+  void OnResourceChanged(XdsRouteConfigResource route_config) override {
     parent_->OnRouteConfigChanged(std::move(route_config));
   }
 
@@ -461,7 +461,7 @@ XdsServerConfigFetcher::ListenerWatcher::ListenerWatcher(
       serving_status_notifier_(serving_status_notifier),
       listening_address_(std::move(listening_address)) {}
 
-void XdsServerConfigFetcher::ListenerWatcher::OnListenerChanged(
+void XdsServerConfigFetcher::ListenerWatcher::OnResourceChanged(
     XdsListenerResource listener) {
   if (GRPC_TRACE_FLAG_ENABLED(grpc_xds_server_config_fetcher_trace)) {
     gpr_log(GPR_INFO,
diff --git a/tools/doxygen/Doxyfile.c++.internal b/tools/doxygen/Doxyfile.c++.internal
index 65164414dd1..7a566cc2e6a 100644
--- a/tools/doxygen/Doxyfile.c++.internal
+++ b/tools/doxygen/Doxyfile.c++.internal
@@ -1734,6 +1734,7 @@ src/core/ext/xds/xds_listener.cc \
 src/core/ext/xds/xds_listener.h \
 src/core/ext/xds/xds_resource_type.cc \
 src/core/ext/xds/xds_resource_type.h \
+src/core/ext/xds/xds_resource_type_impl.h \
 src/core/ext/xds/xds_route_config.cc \
 src/core/ext/xds/xds_route_config.h \
 src/core/ext/xds/xds_routing.cc \
diff --git a/tools/doxygen/Doxyfile.core.internal b/tools/doxygen/Doxyfile.core.internal
index a205835de3a..eadf8a934d2 100644
--- a/tools/doxygen/Doxyfile.core.internal
+++ b/tools/doxygen/Doxyfile.core.internal
@@ -1528,6 +1528,7 @@ src/core/ext/xds/xds_listener.cc \
 src/core/ext/xds/xds_listener.h \
 src/core/ext/xds/xds_resource_type.cc \
 src/core/ext/xds/xds_resource_type.h \
+src/core/ext/xds/xds_resource_type_impl.h \
 src/core/ext/xds/xds_route_config.cc \
 src/core/ext/xds/xds_route_config.h \
 src/core/ext/xds/xds_routing.cc \