diff --git a/aws_lambda_builders/__main__.py b/aws_lambda_builders/__main__.py
index 2a0c3d887..bc03e9856 100644
--- a/aws_lambda_builders/__main__.py
+++ b/aws_lambda_builders/__main__.py
@@ -131,6 +131,7 @@ def main():  # pylint: disable=too-many-statements
             architecture=params.get("architecture", X86_64),
             is_building_layer=params.get("is_building_layer", False),
             experimental_flags=params.get("experimental_flags", []),
+            build_in_source=params.get("build_in_source", None),
         )
 
         # Return a success response
diff --git a/aws_lambda_builders/builder.py b/aws_lambda_builders/builder.py
index 1538cc0d6..7d5430110 100644
--- a/aws_lambda_builders/builder.py
+++ b/aws_lambda_builders/builder.py
@@ -71,6 +71,7 @@ def build(
         architecture=X86_64,
         is_building_layer=False,
         experimental_flags=None,
+        build_in_source=None,
     ):
         # pylint: disable-msg=too-many-locals
         """
@@ -138,6 +139,11 @@ def build(
         :type experimental_flags: list
         :param experimental_flags:
             List of strings, which will indicate enabled experimental flags for the current build session
+
+        :type build_in_source: Optional[bool]
+        :param build_in_source:
+            Optional, will execute the build operation in the source directory if True.
+
         """
 
         if not os.path.exists(scratch_dir):
@@ -159,6 +165,7 @@ def build(
             architecture=architecture,
             is_building_layer=is_building_layer,
             experimental_flags=experimental_flags,
+            build_in_source=build_in_source,
         )
 
         return workflow.run()
diff --git a/aws_lambda_builders/workflow.py b/aws_lambda_builders/workflow.py
index 7aef1bd84..3a881fd3a 100644
--- a/aws_lambda_builders/workflow.py
+++ b/aws_lambda_builders/workflow.py
@@ -165,6 +165,7 @@ def __init__(
         architecture=X86_64,
         is_building_layer=False,
         experimental_flags=None,
+        build_in_source=None,
     ):
         # pylint: disable-msg=too-many-locals
         """
@@ -208,6 +209,9 @@ def __init__(
 
         experimental_flags: list, optional
             List of strings, which will indicate enabled experimental flags for the current build session
+
+        build_in_source: Optional[bool]
+            Optional, will execute the build operation in the source directory if True.
         """
 
         self.source_dir = source_dir
@@ -225,6 +229,7 @@ def __init__(
         self.architecture = architecture
         self.is_building_layer = is_building_layer
         self.experimental_flags = experimental_flags if experimental_flags else []
+        self.build_in_source = build_in_source
 
         # Actions are registered by the subclasses as they seem fit
         self.actions = []
diff --git a/tests/functional/test_cli.py b/tests/functional/test_cli.py
index 3d3a64e5d..b22dd68d5 100644
--- a/tests/functional/test_cli.py
+++ b/tests/functional/test_cli.py
@@ -83,6 +83,7 @@ def test_run_hello_workflow_with_backcompat(self, flavor, protocol_version):
                 "architecture": "x86_64",
                 "is_building_layer": False,
                 "experimental_flags": ["experimental"],
+                "build_in_source": False,
             },
         }
 
@@ -149,6 +150,7 @@ def test_run_hello_workflow_incompatible(self, flavor):
                     "combine_dependencies": False,
                     "is_building_layer": False,
                     "experimental_flags": ["experimental"],
+                    "build_in_source": False,
                 },
             }
         )
diff --git a/tests/unit/test_builder.py b/tests/unit/test_builder.py
index 3b6c55047..b71aed5b2 100644
--- a/tests/unit/test_builder.py
+++ b/tests/unit/test_builder.py
@@ -127,6 +127,7 @@ def setUp(self):
             [True, False],  # combine_dependencies
             [True, False],  # is_building_layer
             [None, [], ["a", "b"]],  # experimental flags
+            [True, False],  # build_in_source
         )
     )
     @patch("aws_lambda_builders.builder.os")
@@ -139,6 +140,7 @@ def test_with_mocks(
         combine_dependencies,
         is_building_layer,
         experimental_flags,
+        build_in_source,
         get_workflow_mock,
         os_mock,
     ):
@@ -167,6 +169,7 @@ def test_with_mocks(
             combine_dependencies=combine_dependencies,
             is_building_layer=is_building_layer,
             experimental_flags=experimental_flags,
+            build_in_source=build_in_source,
         )
 
         workflow_cls.assert_called_with(
@@ -185,6 +188,7 @@ def test_with_mocks(
             combine_dependencies=combine_dependencies,
             is_building_layer=is_building_layer,
             experimental_flags=experimental_flags,
+            build_in_source=build_in_source,
         )
         workflow_instance.run.assert_called_once()
         os_mock.path.exists.assert_called_once_with("scratch_dir")