diff --git a/src/python/grpcio_tests/commands.py b/src/python/grpcio_tests/commands.py
index 9905aee86c5..a8f119fd46b 100644
--- a/src/python/grpcio_tests/commands.py
+++ b/src/python/grpcio_tests/commands.py
@@ -106,6 +106,37 @@ class TestLite(setuptools.Command):
         self.distribution.fetch_build_eggs(self.distribution.tests_require)
 
 
+class TestPy3Only(setuptools.Command):
+    """Command to run tests for Python 3+ features.
+
+    This does not include asyncio tests, which are housed in a separate
+    directory.
+    """
+
+    description = 'run tests for py3+ features'
+    user_options = []
+
+    def initialize_options(self):
+        pass
+
+    def finalize_options(self):
+        pass
+
+    def run(self):
+        self._add_eggs_to_path()
+        import tests
+        loader = tests.Loader()
+        loader.loadTestsFromNames(['tests_py3_only'])
+        runner = tests.Runner()
+        result = runner.run(loader.suite)
+        if not result.wasSuccessful():
+            sys.exit('Test failure')
+
+    def _add_eggs_to_path(self):
+        self.distribution.fetch_build_eggs(self.distribution.install_requires)
+        self.distribution.fetch_build_eggs(self.distribution.tests_require)
+
+
 class TestAio(setuptools.Command):
     """Command to run aio tests without fetching or building anything."""
 
diff --git a/src/python/grpcio_tests/setup.py b/src/python/grpcio_tests/setup.py
index 36fbaf72e23..671f0653732 100644
--- a/src/python/grpcio_tests/setup.py
+++ b/src/python/grpcio_tests/setup.py
@@ -59,6 +59,7 @@ COMMAND_CLASS = {
     'test_lite': commands.TestLite,
     'test_gevent': commands.TestGevent,
     'test_aio': commands.TestAio,
+    'test_py3_only': commands.TestPy3Only,
 }
 
 PACKAGE_DATA = {
diff --git a/src/python/grpcio_tests/tests/unit/BUILD.bazel b/src/python/grpcio_tests/tests/unit/BUILD.bazel
index b2274227ced..42b99023463 100644
--- a/src/python/grpcio_tests/tests/unit/BUILD.bazel
+++ b/src/python/grpcio_tests/tests/unit/BUILD.bazel
@@ -40,10 +40,6 @@ GRPCIO_TESTS_UNIT = [
     "_session_cache_test.py",
 ]
 
-GRPCIO_PY3_ONLY_TESTS_UNIT = glob([
-    "*_py3_only_test.py",
-])
-
 py_library(
     name = "_tcp_proxy",
     srcs = ["_tcp_proxy.py"],
@@ -114,23 +110,3 @@ py_library(
     )
     for test_file_name in GRPCIO_TESTS_UNIT
 ]
-
-[
-    py_test(
-        name = test_file_name[:-len(".py")],
-        size = "small",
-        srcs = [test_file_name],
-        main = test_file_name,
-        python_version = "PY3",
-        srcs_version = "PY3",
-        deps = [
-            "resources",
-            "test_common",
-            "//src/python/grpcio/grpc:grpcio",
-            "//src/python/grpcio_tests/tests/testing",
-            "//src/python/grpcio_tests/tests/unit/framework/common",
-            "@six",
-        ],
-    )
-    for test_file_name in GRPCIO_PY3_ONLY_TESTS_UNIT
-]
diff --git a/src/python/grpcio_tests/tests_py3_only/__init__.py b/src/python/grpcio_tests/tests_py3_only/__init__.py
new file mode 100644
index 00000000000..6732ae8cbb5
--- /dev/null
+++ b/src/python/grpcio_tests/tests_py3_only/__init__.py
@@ -0,0 +1,21 @@
+# Copyright 2020 The 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.
+
+from __future__ import absolute_import
+
+from tests import _loader
+from tests import _runner
+
+Loader = _loader.Loader
+Runner = _runner.Runner
diff --git a/src/python/grpcio_tests/tests_py3_only/unit/BUILD.bazel b/src/python/grpcio_tests/tests_py3_only/unit/BUILD.bazel
new file mode 100644
index 00000000000..81b66ddc116
--- /dev/null
+++ b/src/python/grpcio_tests/tests_py3_only/unit/BUILD.bazel
@@ -0,0 +1,41 @@
+# Copyright 2020 The 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.
+
+package(
+    default_testonly = True,
+)
+
+GRPCIO_PY3_ONLY_TESTS_UNIT = glob([
+    "*_test.py",
+])
+
+[
+    py_test(
+        name = test_file_name[:-len(".py")],
+        size = "small",
+        srcs = [test_file_name],
+        main = test_file_name,
+        python_version = "PY3",
+        srcs_version = "PY3",
+        deps = [
+            "//src/python/grpcio/grpc:grpcio",
+            "//src/python/grpcio_tests/tests/testing",
+            "//src/python/grpcio_tests/tests/unit:resources",
+            "//src/python/grpcio_tests/tests/unit:test_common",
+            "//src/python/grpcio_tests/tests/unit/framework/common",
+            "@six",
+        ],
+    )
+    for test_file_name in GRPCIO_PY3_ONLY_TESTS_UNIT
+]
diff --git a/src/python/grpcio_tests/tests_py3_only/unit/__init__.py b/src/python/grpcio_tests/tests_py3_only/unit/__init__.py
new file mode 100644
index 00000000000..f4b321fc5b2
--- /dev/null
+++ b/src/python/grpcio_tests/tests_py3_only/unit/__init__.py
@@ -0,0 +1,13 @@
+# Copyright 2019 The 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.
diff --git a/src/python/grpcio_tests/tests/unit/_simple_stubs_py3_only_test.py b/src/python/grpcio_tests/tests_py3_only/unit/_simple_stubs_test.py
similarity index 100%
rename from src/python/grpcio_tests/tests/unit/_simple_stubs_py3_only_test.py
rename to src/python/grpcio_tests/tests_py3_only/unit/_simple_stubs_test.py