diff --git a/tools/idf_py_actions/core_ext.py b/tools/idf_py_actions/core_ext.py
index 53130cbd6d..d7a379d744 100644
--- a/tools/idf_py_actions/core_ext.py
+++ b/tools/idf_py_actions/core_ext.py
@@ -451,28 +451,6 @@ def action_extensions(base_actions, project_path):
                 'order_dependencies': ['reconfigure'],
                 'options': global_options,
             },
-            'erase_otadata': {
-                'callback': build_target,
-                'hidden': True,
-                'help': 'Erase otadata partition.',
-                'options': global_options,
-            },
-            'erase-otadata': {
-                'callback': build_target,
-                'help': 'Erase otadata partition. Deprecated alias: "erase_otadata".',
-                'options': global_options,
-            },
-            'read_otadata': {
-                'callback': build_target,
-                'hidden': True,
-                'help': 'Read otadata partition.',
-                'options': global_options,
-            },
-            'read-otadata': {
-                'callback': build_target,
-                'help': 'Read otadata partition. Deprecated alias: "read_otadata".',
-                'options': global_options,
-            },
             'build-system-targets': {
                 'callback': list_build_system_targets,
                 'help': 'Print list of build system targets.',
diff --git a/tools/idf_py_actions/serial_ext.py b/tools/idf_py_actions/serial_ext.py
index 585fa4fac5..2d154c63c2 100644
--- a/tools/idf_py_actions/serial_ext.py
+++ b/tools/idf_py_actions/serial_ext.py
@@ -169,6 +169,17 @@ def action_extensions(base_actions, project_path):
                     task.action_args['encrypted'] = True
                     break
 
+    def ota_targets(target_name, ctx, args):
+        """
+        Execute the target build system to build target 'target_name'.
+        Additionally set global variables for baud and port.
+        Calls ensure_build_directory() which will run cmake to generate a build
+        directory (with the specified generator) as needed.
+        """
+        args.port = args.port or _get_default_serial_port(args)
+        ensure_build_directory(args, ctx.info_name)
+        run_target(target_name, args, {'ESPBAUD': str(args.baud), 'ESPPORT': args.port})
+
     baud_rate = {
         'names': ['-b', '--baud'],
         'help': 'Baud rate for flashing.',
@@ -185,19 +196,20 @@ def action_extensions(base_actions, project_path):
         'default': None,
     }
 
+    BAUD_AND_PORT = [baud_rate, port]
     serial_actions = {
         'global_action_callbacks': [global_callback],
         'actions': {
             'flash': {
                 'callback': flash,
                 'help': 'Flash the project.',
-                'options': global_options + [baud_rate, port],
+                'options': global_options + BAUD_AND_PORT,
                 'order_dependencies': ['all', 'erase-flash'],
             },
             'erase-flash': {
                 'callback': erase_flash,
                 'help': 'Erase entire flash chip. Deprecated alias: "erase_flash"',
-                'options': [baud_rate, port],
+                'options': BAUD_AND_PORT,
             },
             'erase_flash': {
                 'callback': erase_flash,
@@ -207,7 +219,7 @@ def action_extensions(base_actions, project_path):
                 },
                 'hidden': True,
                 'help': 'Erase entire flash chip.',
-                'options': [baud_rate, port],
+                'options': BAUD_AND_PORT,
             },
             'monitor': {
                 'callback':
@@ -269,26 +281,26 @@ def action_extensions(base_actions, project_path):
             'partition-table-flash': {
                 'callback': flash,
                 'help': 'Flash partition table only. Deprecated alias: "partition_table-flash".',
-                'options': [baud_rate, port],
+                'options': BAUD_AND_PORT,
                 'order_dependencies': ['partition-table', 'erase-flash'],
             },
             'partition_table-flash': {
                 'callback': flash,
                 'hidden': True,
                 'help': 'Flash partition table only.',
-                'options': [baud_rate, port],
+                'options': BAUD_AND_PORT,
                 'order_dependencies': ['partition-table', 'erase-flash'],
             },
             'bootloader-flash': {
                 'callback': flash,
                 'help': 'Flash bootloader only.',
-                'options': [baud_rate, port],
+                'options': BAUD_AND_PORT,
                 'order_dependencies': ['bootloader', 'erase-flash'],
             },
             'app-flash': {
                 'callback': flash,
                 'help': 'Flash the app only.',
-                'options': [baud_rate, port],
+                'options': BAUD_AND_PORT,
                 'order_dependencies': ['app', 'erase-flash'],
             },
             'encrypted-app-flash': {
@@ -301,6 +313,28 @@ def action_extensions(base_actions, project_path):
                 'help': 'Flash the encrypted project.',
                 'order_dependencies': ['all', 'erase-flash'],
             },
+            'erase_otadata': {
+                'callback': ota_targets,
+                'hidden': True,
+                'help': 'Erase otadata partition.',
+                'options': global_options + BAUD_AND_PORT,
+            },
+            'erase-otadata': {
+                'callback': ota_targets,
+                'help': 'Erase otadata partition. Deprecated alias: "erase_otadata".',
+                'options': global_options + BAUD_AND_PORT,
+            },
+            'read_otadata': {
+                'callback': ota_targets,
+                'hidden': True,
+                'help': 'Read otadata partition.',
+                'options': global_options + BAUD_AND_PORT,
+            },
+            'read-otadata': {
+                'callback': ota_targets,
+                'help': 'Read otadata partition. Deprecated alias: "read_otadata".',
+                'options': global_options + BAUD_AND_PORT,
+            },
         },
     }