diff --git a/rubicon_ml/domain/project.py b/rubicon_ml/domain/project.py
index ff159590..570742f9 100644
--- a/rubicon_ml/domain/project.py
+++ b/rubicon_ml/domain/project.py
@@ -1,18 +1,80 @@
-from __future__ import annotations
+import datetime
+import logging
+import uuid
+from dataclasses import dataclass
+from typing import TYPE_CHECKING, Optional
 
-from dataclasses import dataclass, field
-from datetime import datetime
-from typing import Optional
+if TYPE_CHECKING:
+    from rubicon_ml.domain.utils import TrainingMetadata
 
-from rubicon_ml.domain.utils import TrainingMetadata, uuid
+LOGGER = logging.getLogger()
 
 
-@dataclass
+@dataclass(init=False)
 class Project:
+    """A domain-level project.
+
+    Parameters
+    ----------
+    name : str
+        The project's name.
+    created_at : datetime, optional
+        The date and time the project was created. Defaults to `None` and uses
+        `datetime.datetime.now` to generate a UTC timestamp. `created_at` should be
+        left as `None` to allow for automatic generation.
+    description : str, optional
+        A description of the project. Defaults to `None`.
+    github_url : str, optional
+        The URL of the GitHub repository associated with this project. Defaults to
+        `None`.
+    id : str, optional
+        The project's unique identifier. Defaults to `None` and uses `uuid.uuid4`
+        to generate a unique ID. `id` should be left as `None` to allow for automatic
+        generation.
+    training_metadata : rubicon_ml.domain.utils.TrainingMetadata, optional
+        Additional metadata pertaining to any data this project was trained on.
+        Defaults to `None`.
+    """
+
     name: str
 
-    id: str = field(default_factory=uuid.uuid4)
+    created_at: Optional[datetime.datetime] = None
     description: Optional[str] = None
     github_url: Optional[str] = None
-    training_metadata: Optional[TrainingMetadata] = None
-    created_at: datetime = field(default_factory=datetime.utcnow)
+    id: Optional[str] = None
+    training_metadata: Optional["TrainingMetadata"] = None
+
+    def __init__(
+        self,
+        name: str,
+        created_at: Optional[datetime.datetime] = None,
+        description: Optional[str] = None,
+        github_url: Optional[str] = None,
+        id: Optional[str] = None,
+        training_metadata: Optional["TrainingMetadata"] = None,
+        **kwargs,
+    ):
+        """Initialize this domain project."""
+
+        self.name = name
+
+        self.created_at = created_at
+        self.description = description
+        self.github_url = github_url
+        self.id = id
+        self.training_metadata = training_metadata
+
+        if self.created_at is None:
+            try:  # `datetime.UTC` added & `datetime.utcnow` deprecated in Python 3.11
+                self.created_at = datetime.datetime.now(datetime.UTC)
+            except AttributeError:
+                self.created_at = datetime.datetime.utcnow()
+
+        if self.id is None:
+            self.id = str(uuid.uuid4())
+
+        if kwargs:  # replaces `dataclass` behavior of erroring on unexpected kwargs
+            LOGGER.warning(
+                f"{self.__class__.__name__}.__init__() got an unexpected keyword "
+                f"argument(s): `{'`, `'.join([key for key in kwargs])}`"
+            )
diff --git a/tests/unit/domain/test_domain.py b/tests/unit/domain/test_domain.py
new file mode 100644
index 00000000..2b4bdec6
--- /dev/null
+++ b/tests/unit/domain/test_domain.py
@@ -0,0 +1,24 @@
+from unittest import mock
+
+import pytest
+
+from rubicon_ml.domain.project import Project
+
+
+@pytest.mark.parametrize(
+    ["domain_cls", "required_kwargs"],
+    [(Project, {"name": "test_domain_extra_kwargs"})],
+)
+def test_domain_extra_kwargs(domain_cls, required_kwargs):
+    with mock.patch(
+        f"rubicon_ml.domain.{domain_cls.__name__.lower()}.LOGGER.warning"
+    ) as mock_logger_warning:
+        domain = domain_cls(extra="extra", **required_kwargs)
+
+    mock_logger_warning.assert_called_once_with(
+        f"{domain_cls.__name__}.__init__() got an unexpected keyword argument(s): `extra`",
+    )
+
+    assert "extra" not in domain.__dict__
+    for key, value in required_kwargs.items():
+        assert getattr(domain, key) == value