diff --git a/google/genai/_live_converters.py b/google/genai/_live_converters.py
index 165ac5f98..dabdc7b63 100644
--- a/google/genai/_live_converters.py
+++ b/google/genai/_live_converters.py
@@ -407,6 +407,12 @@ def _GoogleMaps_to_mldev(
   if getv(from_object, ['enable_widget']) is not None:
     setv(to_object, ['enableWidget'], getv(from_object, ['enable_widget']))
 
+  if getv(from_object, ['grounding_types']) is not None:
+    raise ValueError(
+        'grounding_types parameter is only supported in Gemini Enterprise Agent'
+        ' Platform mode, not in Gemini Developer API mode.'
+    )
+
   return to_object
 
 
diff --git a/google/genai/_tokens_converters.py b/google/genai/_tokens_converters.py
index acfdb0eef..8ece00fb5 100644
--- a/google/genai/_tokens_converters.py
+++ b/google/genai/_tokens_converters.py
@@ -248,6 +248,12 @@ def _GoogleMaps_to_mldev(
   if getv(from_object, ['enable_widget']) is not None:
     setv(to_object, ['enableWidget'], getv(from_object, ['enable_widget']))
 
+  if getv(from_object, ['grounding_types']) is not None:
+    raise ValueError(
+        'grounding_types parameter is only supported in Gemini Enterprise Agent'
+        ' Platform mode, not in Gemini Developer API mode.'
+    )
+
   return to_object
 
 
diff --git a/google/genai/batches.py b/google/genai/batches.py
index 55dfd786e..a3abf1972 100644
--- a/google/genai/batches.py
+++ b/google/genai/batches.py
@@ -1277,6 +1277,12 @@ def _GoogleMaps_to_mldev(
   if getv(from_object, ['enable_widget']) is not None:
     setv(to_object, ['enableWidget'], getv(from_object, ['enable_widget']))
 
+  if getv(from_object, ['grounding_types']) is not None:
+    raise ValueError(
+        'grounding_types parameter is only supported in Gemini Enterprise Agent'
+        ' Platform mode, not in Gemini Developer API mode.'
+    )
+
   return to_object
 
 
diff --git a/google/genai/caches.py b/google/genai/caches.py
index d10fc2e27..90c77e897 100644
--- a/google/genai/caches.py
+++ b/google/genai/caches.py
@@ -553,6 +553,12 @@ def _GoogleMaps_to_mldev(
   if getv(from_object, ['enable_widget']) is not None:
     setv(to_object, ['enableWidget'], getv(from_object, ['enable_widget']))
 
+  if getv(from_object, ['grounding_types']) is not None:
+    raise ValueError(
+        'grounding_types parameter is only supported in Gemini Enterprise Agent'
+        ' Platform mode, not in Gemini Developer API mode.'
+    )
+
   return to_object
 
 
diff --git a/google/genai/models.py b/google/genai/models.py
index 861b030d0..7c4242279 100644
--- a/google/genai/models.py
+++ b/google/genai/models.py
@@ -3076,6 +3076,12 @@ def _GoogleMaps_to_mldev(
   if getv(from_object, ['enable_widget']) is not None:
     setv(to_object, ['enableWidget'], getv(from_object, ['enable_widget']))
 
+  if getv(from_object, ['grounding_types']) is not None:
+    raise ValueError(
+        'grounding_types parameter is only supported in Gemini Enterprise Agent'
+        ' Platform mode, not in Gemini Developer API mode.'
+    )
+
   return to_object
 
 
diff --git a/google/genai/tests/models/test_generate_content_tools.py b/google/genai/tests/models/test_generate_content_tools.py
index e2615c4cc..40721bbbf 100644
--- a/google/genai/tests/models/test_generate_content_tools.py
+++ b/google/genai/tests/models/test_generate_content_tools.py
@@ -637,6 +637,32 @@ def divide_floats(a: float, b: float) -> float:
             config={'tools': [{'google_maps': {'enable_widget': True}}]},
         ),
     ),
+    pytest_helper.TestTableItem(
+        name='test_google_maps_places_routing',
+        parameters=types._GenerateContentParameters(
+            model='gemini-3.5-flash',
+            contents=t.t_contents(
+                'How long does it take to drive from SFO to LAX?'
+            ),
+            config={
+                'tools': [{'google_maps': {'grounding_types': {'places': {}}}}]
+            },
+        ),
+        exception_if_mldev='only supported in',
+    ),
+    pytest_helper.TestTableItem(
+        name='test_google_maps_routing',
+        parameters=types._GenerateContentParameters(
+            model='gemini-3.5-flash',
+            contents=t.t_contents(
+                'Give me directions from SFO to LAX.'
+            ),
+            config={
+                'tools': [{'google_maps': {'grounding_types': {'routing': {}}}}]
+            },
+        ),
+        exception_if_mldev='only supported in',
+    ),
     pytest_helper.TestTableItem(
         name='test_include_server_side_tool_invocations',
         parameters=types._GenerateContentParameters(
diff --git a/google/genai/types.py b/google/genai/types.py
index f1831d51c..359c00d45 100644
--- a/google/genai/types.py
+++ b/google/genai/types.py
@@ -3753,6 +3753,84 @@ class AuthConfigDict(TypedDict, total=False):
 AuthConfigOrDict = Union[AuthConfig, AuthConfigDict]
 
 
+class GoogleMapsPlaces(_common.BaseModel):
+  """Grounding with Google Maps Places data (e.g.
+
+  QueryPlaces). This is the default Google Maps grounding type when no other
+  type is specified. This data type is not supported in Gemini API.
+  """
+
+  pass
+
+
+class GoogleMapsPlacesDict(TypedDict, total=False):
+  """Grounding with Google Maps Places data (e.g.
+
+  QueryPlaces). This is the default Google Maps grounding type when no other
+  type is specified. This data type is not supported in Gemini API.
+  """
+
+  pass
+
+
+GoogleMapsPlacesOrDict = Union[GoogleMapsPlaces, GoogleMapsPlacesDict]
+
+
+class GoogleMapsRouting(_common.BaseModel):
+  """Grounding with Google Maps Routing APIs (ComputeRoutes and SearchAlongRoute).
+
+  This data type is not supported in Gemini API.
+  """
+
+  pass
+
+
+class GoogleMapsRoutingDict(TypedDict, total=False):
+  """Grounding with Google Maps Routing APIs (ComputeRoutes and SearchAlongRoute).
+
+  This data type is not supported in Gemini API.
+  """
+
+  pass
+
+
+GoogleMapsRoutingOrDict = Union[GoogleMapsRouting, GoogleMapsRoutingDict]
+
+
+class GoogleMapsGroundingTypes(_common.BaseModel):
+  """Defines the types of Google Maps grounding that can be enabled and their configurations.
+
+  This data type is not supported in Gemini API.
+  """
+
+  places: Optional[GoogleMapsPlaces] = Field(
+      default=None,
+      description="""Optional. Enables grounding with Google Maps Places. This is the default grounding type when no `GroundingTypes` are specified.""",
+  )
+  routing: Optional[GoogleMapsRouting] = Field(
+      default=None,
+      description="""Optional. Enables grounding with Google Maps Routing APIs (ComputeRoutes and SearchAlongRoute).""",
+  )
+
+
+class GoogleMapsGroundingTypesDict(TypedDict, total=False):
+  """Defines the types of Google Maps grounding that can be enabled and their configurations.
+
+  This data type is not supported in Gemini API.
+  """
+
+  places: Optional[GoogleMapsPlacesDict]
+  """Optional. Enables grounding with Google Maps Places. This is the default grounding type when no `GroundingTypes` are specified."""
+
+  routing: Optional[GoogleMapsRoutingDict]
+  """Optional. Enables grounding with Google Maps Routing APIs (ComputeRoutes and SearchAlongRoute)."""
+
+
+GoogleMapsGroundingTypesOrDict = Union[
+    GoogleMapsGroundingTypes, GoogleMapsGroundingTypesDict
+]
+
+
 class GoogleMaps(_common.BaseModel):
   """Tool to retrieve knowledge from Google Maps."""
 
@@ -3764,6 +3842,10 @@ class GoogleMaps(_common.BaseModel):
       default=None,
       description="""Deprecated. The Google Maps contextual widget behavior in Grounding with Google Maps is being deprecated; this field is planned for removal and no longer has any effect once removed. Optional. Whether to return a widget context token in the GroundingMetadata of the response.""",
   )
+  grounding_types: Optional[GoogleMapsGroundingTypes] = Field(
+      default=None,
+      description="""Optional. Specifies the types of Google Maps grounding to enable. This field is not supported in Gemini API.""",
+  )
 
 
 class GoogleMapsDict(TypedDict, total=False):
@@ -3775,6 +3857,9 @@ class GoogleMapsDict(TypedDict, total=False):
   enable_widget: Optional[bool]
   """Deprecated. The Google Maps contextual widget behavior in Grounding with Google Maps is being deprecated; this field is planned for removal and no longer has any effect once removed. Optional. Whether to return a widget context token in the GroundingMetadata of the response."""
 
+  grounding_types: Optional[GoogleMapsGroundingTypesDict]
+  """Optional. Specifies the types of Google Maps grounding to enable. This field is not supported in Gemini API."""
+
 
 GoogleMapsOrDict = Union[GoogleMaps, GoogleMapsDict]