diff --git a/changelog/8159-codegen-correspondence-ts-types.yaml b/changelog/8159-codegen-correspondence-ts-types.yaml
new file mode 100644
index 00000000000..d250f524aa6
--- /dev/null
+++ b/changelog/8159-codegen-correspondence-ts-types.yaml
@@ -0,0 +1,4 @@
+type: Added
+description: Generated TypeScript types for correspondence and notification API contract (ENG-3303).
+pr: 8159
+labels: []
diff --git a/clients/admin-ui/src/types/api/index.ts b/clients/admin-ui/src/types/api/index.ts
index 365a6fdf93f..52e7245070f 100644
--- a/clients/admin-ui/src/types/api/index.ts
+++ b/clients/admin-ui/src/types/api/index.ts
@@ -80,6 +80,7 @@ export type * from "./models/Body_create_comment_api_v1_plus_privacy_request__pr
 export type * from "./models/Body_create_comment_api_v1_plus_privacy_request__privacy_request_id__comment_post";
 export type * from "./models/Body_create_comment_api_v1_plus_privacy_request__privacy_request_id__erasure_manual_webhook__connection_key__comment_post";
 export type * from "./models/Body_export_minimal_datamap_with_format_api_v1_plus_datamap_minimal__export_format__post";
+export type * from "./models/Body_send_correspondence_api_v1_plus_privacy_request__privacy_request_id__correspondence_post";
 export type * from "./models/Body_skip_single_manual_field_api_v1_privacy_request__privacy_request_id__manual_field__manual_field_id__skip_post";
 export type * from "./models/Body_submit_single_manual_field_api_v1_privacy_request__privacy_request_id__manual_field__manual_field_id__complete_post";
 export type * from "./models/Body_upload_data_api_v1_storage__request_id__post";
@@ -155,6 +156,7 @@ export * from "./models/ColumnSort";
 export type * from "./models/CommentResponse";
 export * from "./models/CommentType";
 export * from "./models/ComponentType";
+export * from "./models/CorrespondenceDeliveryStatus";
 export type * from "./models/ConditionGroup";
 export type * from "./models/ConditionLeaf";
 export type * from "./models/ConditionalTotalCursorPage_DatastoreStagedResourceTreeAPIResponse_";
@@ -327,6 +329,7 @@ export * from "./models/EnforcementLevel";
 export type * from "./models/EntraDocsSchema";
 export type * from "./models/EntraMonitorConfig";
 export * from "./models/ErrorNotificationMode";
+export type * from "./models/ErrorResponse";
 export * from "./models/ErrorType";
 export type * from "./models/Evaluation";
 export type * from "./models/EventAuditResponse";
@@ -489,6 +492,7 @@ export type * from "./models/ManualWebhookDocsSchema";
 export type * from "./models/ManualWebhookField";
 export type * from "./models/MappedPurpose";
 export type * from "./models/MariaDBDocsSchema";
+export type * from "./models/MarkAllReadResponse";
 export type * from "./models/MaskingAPIRequest";
 export type * from "./models/MaskingAPIResponse";
 export * from "./models/MaskingStrategies";
@@ -550,6 +554,9 @@ export type * from "./models/NoticeTranslation";
 export type * from "./models/NoticeTranslationCreate";
 export type * from "./models/NoticeTranslationResponse";
 export type * from "./models/NotificationApplicationConfig";
+export type * from "./models/NotificationResourceType";
+export type * from "./models/NotificationResponse";
+export * from "./models/NotificationType";
 export type * from "./models/OAuthConfigSchema";
 export * from "./models/OAuthGrantType";
 export type * from "./models/OktaConfig";
@@ -603,6 +610,7 @@ export type * from "./models/Page_MonitorConfigStagedResourcesAggregateRecord_";
 export type * from "./models/Page_MonitorExecution_";
 export type * from "./models/Page_MonitorStatusResponse_";
 export type * from "./models/Page_MonitorTaskResponse_";
+export type * from "./models/Page_NotificationResponse_";
 export type * from "./models/Page_PolicyResponse_";
 export type * from "./models/Page_PolicyWebhookResponse_";
 export type * from "./models/Page_PreApprovalWebhookResponse_";
@@ -924,6 +932,7 @@ export type * from "./models/TrendMetric";
 export * from "./models/TrendPeriod";
 export type * from "./models/TrendsResponse";
 export type * from "./models/UnlabeledIdentities";
+export type * from "./models/UnreadCountResponse";
 export type * from "./models/UnverifiedIdentity";
 export type * from "./models/UnverifiedPrivacyPreferencesRequest";
 export type * from "./models/UpdateAnswerRequest";
diff --git a/clients/admin-ui/src/types/api/models/Body_send_correspondence_api_v1_plus_privacy_request__privacy_request_id__correspondence_post.ts b/clients/admin-ui/src/types/api/models/Body_send_correspondence_api_v1_plus_privacy_request__privacy_request_id__correspondence_post.ts
new file mode 100644
index 00000000000..1704f6aaae3
--- /dev/null
+++ b/clients/admin-ui/src/types/api/models/Body_send_correspondence_api_v1_plus_privacy_request__privacy_request_id__correspondence_post.ts
@@ -0,0 +1,32 @@
+// This file is auto-generated by @hey-api/openapi-ts
+
+/**
+ * Body_send_correspondence_api_v1_plus_privacy_request__privacy_request_id__correspondence_post
+ */
+export type Body_send_correspondence_api_v1_plus_privacy_request__privacy_request_id__correspondence_post =
+  {
+    /**
+     * Subject
+     *
+     * Email subject line
+     */
+    subject: string;
+    /**
+     * Body
+     *
+     * Email body content (HTML supported)
+     */
+    body: string;
+    /**
+     * Template Id
+     *
+     * Optional template ID
+     */
+    template_id?: string | null;
+    /**
+     * Attachments
+     *
+     * Optional file attachments
+     */
+    attachments?: Array<Blob | File>;
+  };
diff --git a/clients/admin-ui/src/types/api/models/CommentResponse.ts b/clients/admin-ui/src/types/api/models/CommentResponse.ts
index 2646b64f4be..12c24cb07c5 100644
--- a/clients/admin-ui/src/types/api/models/CommentResponse.ts
+++ b/clients/admin-ui/src/types/api/models/CommentResponse.ts
@@ -2,6 +2,7 @@
 
 import type { AttachmentResponse } from "./AttachmentResponse";
 import { CommentType } from "./CommentType";
+import { CorrespondenceDeliveryStatus } from "./CorrespondenceDeliveryStatus";
 
 /**
  * CommentResponse
@@ -67,4 +68,38 @@ export type CommentResponse = {
    * The comment type
    */
   comment_type: CommentType;
+  /**
+   * Delivery status for correspondence messages
+   */
+  delivery_status?: CorrespondenceDeliveryStatus | null;
+  /**
+   * Parent Id
+   *
+   * Parent comment ID for threaded replies
+   */
+  parent_id?: string | null;
+  /**
+   * Sender Email
+   *
+   * Sender email address for correspondence messages
+   */
+  sender_email?: string | null;
+  /**
+   * Recipient Email
+   *
+   * Recipient email address for correspondence messages
+   */
+  recipient_email?: string | null;
+  /**
+   * Bounce Reason
+   *
+   * Bounce reason if delivery failed
+   */
+  bounce_reason?: string | null;
+  /**
+   * Reply To Address
+   *
+   * Reply-to address for correspondence threading
+   */
+  reply_to_address?: string | null;
 };
diff --git a/clients/admin-ui/src/types/api/models/CorrespondenceDeliveryStatus.ts b/clients/admin-ui/src/types/api/models/CorrespondenceDeliveryStatus.ts
new file mode 100644
index 00000000000..10a9369aaec
--- /dev/null
+++ b/clients/admin-ui/src/types/api/models/CorrespondenceDeliveryStatus.ts
@@ -0,0 +1,14 @@
+// This file is auto-generated by @hey-api/openapi-ts
+
+/**
+ * CorrespondenceDeliveryStatus
+ *
+ * Delivery status for correspondence messages.
+ */
+export enum CorrespondenceDeliveryStatus {
+  PENDING = "pending",
+  SENT = "sent",
+  DELIVERED = "delivered",
+  BOUNCED = "bounced",
+  FAILED = "failed",
+}
diff --git a/clients/admin-ui/src/types/api/models/ErrorResponse.ts b/clients/admin-ui/src/types/api/models/ErrorResponse.ts
new file mode 100644
index 00000000000..0b8ca7e39b0
--- /dev/null
+++ b/clients/admin-ui/src/types/api/models/ErrorResponse.ts
@@ -0,0 +1,13 @@
+// This file is auto-generated by @hey-api/openapi-ts
+
+/**
+ * ErrorResponse
+ *
+ * Model for error responses.
+ */
+export type ErrorResponse = {
+  /**
+   * Detail
+   */
+  detail: string;
+};
diff --git a/clients/admin-ui/src/types/api/models/MarkAllReadResponse.ts b/clients/admin-ui/src/types/api/models/MarkAllReadResponse.ts
new file mode 100644
index 00000000000..e6f263025e1
--- /dev/null
+++ b/clients/admin-ui/src/types/api/models/MarkAllReadResponse.ts
@@ -0,0 +1,15 @@
+// This file is auto-generated by @hey-api/openapi-ts
+
+/**
+ * MarkAllReadResponse
+ *
+ * Response for bulk mark-all-as-read.
+ */
+export type MarkAllReadResponse = {
+  /**
+   * Marked Count
+   *
+   * Number of notifications marked as read
+   */
+  marked_count: number;
+};
diff --git a/clients/admin-ui/src/types/api/models/NotificationResourceType.ts b/clients/admin-ui/src/types/api/models/NotificationResourceType.ts
new file mode 100644
index 00000000000..53f0051d6f8
--- /dev/null
+++ b/clients/admin-ui/src/types/api/models/NotificationResourceType.ts
@@ -0,0 +1,10 @@
+// This file is auto-generated by @hey-api/openapi-ts
+
+/**
+ * NotificationResourceType
+ *
+ * Resource types that notifications can link to.
+ */
+export enum NotificationResourceType {
+  PRIVACY_REQUEST = "privacy_request",
+}
diff --git a/clients/admin-ui/src/types/api/models/NotificationResponse.ts b/clients/admin-ui/src/types/api/models/NotificationResponse.ts
new file mode 100644
index 00000000000..cfd9fa518ee
--- /dev/null
+++ b/clients/admin-ui/src/types/api/models/NotificationResponse.ts
@@ -0,0 +1,62 @@
+// This file is auto-generated by @hey-api/openapi-ts
+
+import { NotificationResourceType } from "./NotificationResourceType";
+import { NotificationType } from "./NotificationType";
+
+/**
+ * NotificationResponse
+ *
+ * Response schema for a single notification.
+ */
+export type NotificationResponse = {
+  /**
+   * Id
+   *
+   * The notification ID
+   */
+  id: string;
+  /**
+   * The type of notification
+   */
+  notification_type: NotificationType;
+  /**
+   * Title
+   *
+   * Notification title
+   */
+  title: string;
+  /**
+   * Body
+   *
+   * Notification body text
+   */
+  body?: string | null;
+  /**
+   * Type of the linked resource
+   */
+  resource_type?: NotificationResourceType | null;
+  /**
+   * Resource Id
+   *
+   * ID of the linked resource
+   */
+  resource_id?: string | null;
+  /**
+   * Is Read
+   *
+   * Whether the notification has been read
+   */
+  is_read?: boolean;
+  /**
+   * Read At
+   *
+   * When the notification was read
+   */
+  read_at?: string | null;
+  /**
+   * Created At
+   *
+   * When the notification was created
+   */
+  created_at: string;
+};
diff --git a/clients/admin-ui/src/types/api/models/NotificationType.ts b/clients/admin-ui/src/types/api/models/NotificationType.ts
new file mode 100644
index 00000000000..b0042ac2a9d
--- /dev/null
+++ b/clients/admin-ui/src/types/api/models/NotificationType.ts
@@ -0,0 +1,15 @@
+// This file is auto-generated by @hey-api/openapi-ts
+
+/**
+ * NotificationType
+ *
+ * Types of in-app notifications.
+ *
+ * String constants — the DB column is a plain String (no migration
+ * for new values), but the API contract enumerates valid values so
+ * FE can switch on them.
+ */
+export enum NotificationType {
+  CORRESPONDENCE_REPLY = "correspondence_reply",
+  CORRESPONDENCE_BOUNCE = "correspondence_bounce",
+}
diff --git a/clients/admin-ui/src/types/api/models/Page_NotificationResponse_.ts b/clients/admin-ui/src/types/api/models/Page_NotificationResponse_.ts
new file mode 100644
index 00000000000..2ba48efc21c
--- /dev/null
+++ b/clients/admin-ui/src/types/api/models/Page_NotificationResponse_.ts
@@ -0,0 +1,29 @@
+// This file is auto-generated by @hey-api/openapi-ts
+
+import type { NotificationResponse } from "./NotificationResponse";
+
+/**
+ * Page[NotificationResponse]
+ */
+export type Page_NotificationResponse_ = {
+  /**
+   * Items
+   */
+  items: Array<NotificationResponse>;
+  /**
+   * Total
+   */
+  total: number;
+  /**
+   * Page
+   */
+  page: number;
+  /**
+   * Size
+   */
+  size: number;
+  /**
+   * Pages
+   */
+  pages: number;
+};
diff --git a/clients/admin-ui/src/types/api/models/UnreadCountResponse.ts b/clients/admin-ui/src/types/api/models/UnreadCountResponse.ts
new file mode 100644
index 00000000000..5c262a52288
--- /dev/null
+++ b/clients/admin-ui/src/types/api/models/UnreadCountResponse.ts
@@ -0,0 +1,15 @@
+// This file is auto-generated by @hey-api/openapi-ts
+
+/**
+ * UnreadCountResponse
+ *
+ * Response schema for unread notification count.
+ */
+export type UnreadCountResponse = {
+  /**
+   * Count
+   *
+   * Number of unread notifications
+   */
+  count: number;
+};
diff --git a/src/fides/api/models/comment.py b/src/fides/api/models/comment.py
index 9fc9f1dff32..2f37ba8f294 100644
--- a/src/fides/api/models/comment.py
+++ b/src/fides/api/models/comment.py
@@ -161,6 +161,7 @@ class Comment(Base):
         "CorrespondenceMetadata",
         back_populates="comment",
         uselist=False,
+        lazy="selectin",
         cascade="all, delete-orphan",
     )