diff --git a/packages/@aws-cdk/aws-appconfig-alpha/awslint.json b/packages/@aws-cdk/aws-appconfig-alpha/awslint.json
index 74fa11fd7c925..830aee3b4182b 100644
--- a/packages/@aws-cdk/aws-appconfig-alpha/awslint.json
+++ b/packages/@aws-cdk/aws-appconfig-alpha/awslint.json
@@ -25,10 +25,34 @@
         "docs-public-apis:@aws-cdk/aws-appconfig-alpha.IConfiguration",
         "docs-public-apis:@aws-cdk/aws-appconfig-alpha.IApplication",
 
-        "ref-via-interface:@aws-cdk/aws-appconfig-alpha.Application.addAgentToEcs.taskDef",
-        "events-in-interface",
-        "events-method-signature",
-        "events-generic",
-        "from-signature:@aws-cdk/aws-appconfig-alpha.DeploymentStrategy.fromDeploymentStrategyId.params[2]"
+        "from-signature:@aws-cdk/aws-appconfig-alpha.DeploymentStrategy.fromDeploymentStrategyId.params[2]",
+        "events-method-signature:@aws-cdk/aws-appconfig-alpha.Application.on",
+        "events-method-signature:@aws-cdk/aws-appconfig-alpha.Application.onDeploymentBaking*",
+        "events-method-signature:@aws-cdk/aws-appconfig-alpha.Application.onDeploymentComplete*",
+        "events-method-signature:@aws-cdk/aws-appconfig-alpha.Application.onDeploymentRolledBack*",
+        "events-method-signature:@aws-cdk/aws-appconfig-alpha.Application.onDeploymentStart*",
+        "events-method-signature:@aws-cdk/aws-appconfig-alpha.Application.onDeploymentStep*",
+        "events-method-signature:@aws-cdk/aws-appconfig-alpha.Environment.on",
+        "events-method-signature:@aws-cdk/aws-appconfig-alpha.Environment.onDeploymentBaking*",
+        "events-method-signature:@aws-cdk/aws-appconfig-alpha.Environment.onDeploymentComplete*",
+        "events-method-signature:@aws-cdk/aws-appconfig-alpha.Environment.onDeploymentRolledBack*",
+        "events-method-signature:@aws-cdk/aws-appconfig-alpha.Environment.onDeploymentStart*",
+        "events-method-signature:@aws-cdk/aws-appconfig-alpha.Environment.onDeploymentStep*",
+        "events-method-signature:@aws-cdk/aws-appconfig-alpha.HostedConfiguration.on",
+        "events-method-signature:@aws-cdk/aws-appconfig-alpha.HostedConfiguration.onDeploymentBaking*",
+        "events-method-signature:@aws-cdk/aws-appconfig-alpha.HostedConfiguration.onDeploymentComplete*",
+        "events-method-signature:@aws-cdk/aws-appconfig-alpha.HostedConfiguration.onDeploymentRolledBack*",
+        "events-method-signature:@aws-cdk/aws-appconfig-alpha.HostedConfiguration.onDeploymentStart*",
+        "events-method-signature:@aws-cdk/aws-appconfig-alpha.HostedConfiguration.onDeploymentStep*",
+        "events-method-signature:@aws-cdk/aws-appconfig-alpha.SourcedConfiguration.on",
+        "events-method-signature:@aws-cdk/aws-appconfig-alpha.SourcedConfiguration.onDeploymentBaking*",
+        "events-method-signature:@aws-cdk/aws-appconfig-alpha.SourcedConfiguration.onDeploymentComplete*",
+        "events-method-signature:@aws-cdk/aws-appconfig-alpha.SourcedConfiguration.onDeploymentRolledBack*",
+        "events-method-signature:@aws-cdk/aws-appconfig-alpha.SourcedConfiguration.onDeploymentStart*",
+        "events-method-signature:@aws-cdk/aws-appconfig-alpha.SourcedConfiguration.onDeploymentStep*",
+        "events-generic:@aws-cdk/aws-appconfig-alpha.Application",
+        "events-generic:@aws-cdk/aws-appconfig-alpha.Environment",
+        "events-generic:@aws-cdk/aws-appconfig-alpha.HostedConfiguration",
+        "events-generic:@aws-cdk/aws-appconfig-alpha.SourcedConfiguration"
     ]
 }
\ No newline at end of file
diff --git a/packages/@aws-cdk/aws-appconfig-alpha/lib/application.ts b/packages/@aws-cdk/aws-appconfig-alpha/lib/application.ts
index 71197edca52b1..3d1d57858f03b 100644
--- a/packages/@aws-cdk/aws-appconfig-alpha/lib/application.ts
+++ b/packages/@aws-cdk/aws-appconfig-alpha/lib/application.ts
@@ -73,6 +73,85 @@ export interface IApplication extends cdk.IResource {
    * Returns the list of associated environments.
    */
   get environments(): IEnvironment[];
+
+  /**
+   * Adds an extension defined by the action point and event destination
+   * and also creates an extension association to an application.
+   *
+   * @param actionPoint The action point which triggers the event
+   * @param eventDestination The event that occurs during the extension
+   * @param options Options for the extension
+   */
+  on(actionPoint: ActionPoint, eventDestination: IEventDestination, options?: ExtensionOptions): void;
+
+  /**
+   * Adds a PRE_CREATE_HOSTED_CONFIGURATION_VERSION extension with the
+   * provided event destination and also creates an extension association to an application.
+   *
+   * @param eventDestination The event that occurs during the extension
+   * @param options Options for the extension
+   */
+  preCreateHostedConfigurationVersion(eventDestination: IEventDestination, options?: ExtensionOptions): void;
+
+  /**
+   * Adds a PRE_START_DEPLOYMENT extension with the provided event destination and
+   * also creates an extension association to an application.
+   *
+   * @param eventDestination The event that occurs during the extension
+   * @param options Options for the extension
+   */
+  preStartDeployment(eventDestination: IEventDestination, options?: ExtensionOptions): void;
+  /**
+   * Adds an ON_DEPLOYMENT_START extension with the provided event destination and
+   * also creates an extension association to an application.
+   *
+   * @param eventDestination The event that occurs during the extension
+   * @param options Options for the extension
+   */
+  onDeploymentStart(eventDestination: IEventDestination, options?: ExtensionOptions): void;
+
+  /**
+   * Adds an ON_DEPLOYMENT_STEP extension with the provided event destination and
+   * also creates an extension association to an application.
+   *
+   * @param eventDestination The event that occurs during the extension
+   * @param options Options for the extension
+   */
+  onDeploymentStep(eventDestination: IEventDestination, options?: ExtensionOptions): void;
+
+  /**
+   * Adds an ON_DEPLOYMENT_BAKING extension with the provided event destination and
+   * also creates an extension association to an application.
+   *
+   * @param eventDestination The event that occurs during the extension
+   * @param options Options for the extension
+   */
+  onDeploymentBaking(eventDestination: IEventDestination, options?: ExtensionOptions): void;
+
+  /**
+   * Adds an ON_DEPLOYMENT_COMPLETE extension with the provided event destination and
+   * also creates an extension association to an application.
+   *
+   * @param eventDestination The event that occurs during the extension
+   * @param options Options for the extension
+   */
+  onDeploymentComplete(eventDestination: IEventDestination, options?: ExtensionOptions): void;
+
+  /**
+   * Adds an ON_DEPLOYMENT_ROLLED_BACK extension with the provided event destination and
+   * also creates an extension association to an application.
+   *
+   * @param eventDestination The event that occurs during the extension
+   * @param options Options for the extension
+   */
+  onDeploymentRolledBack(eventDestination: IEventDestination, options?: ExtensionOptions): void;
+
+  /**
+   * Adds an extension association to the application.
+   *
+   * @param extension The extension to create an association for
+   */
+  addExtension(extension: IExtension): void;
 }
 
 /**
@@ -296,7 +375,7 @@ export class Application extends ApplicationBase {
   /**
    * Adds the AWS AppConfig Agent as a container to the provided ECS task definition.
    *
-   * @param taskDef The ECS task definition
+   * @param taskDef The ECS task definition [disable-awslint:ref-via-interface]
    */
   public static addAgentToEcs(taskDef: ecs.TaskDefinition) {
     taskDef.addContainer('AppConfigAgentContainer', {