diff --git a/.gitignore b/.gitignore
index 8d3e714262..59480b08f4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,3 +16,4 @@ build/
 
 # Marquez configuration
 config.yml
+/.metadata/
diff --git a/src/main/java/marquez/api/mappers/NamespaceApiMapper.java b/src/main/java/marquez/api/mappers/NamespaceApiMapper.java
index 1377405650..4f14fb7f6d 100644
--- a/src/main/java/marquez/api/mappers/NamespaceApiMapper.java
+++ b/src/main/java/marquez/api/mappers/NamespaceApiMapper.java
@@ -21,6 +21,7 @@
 import marquez.service.models.Namespace;
 
 public class NamespaceApiMapper extends Mapper<NamespaceResponse, Namespace> {
+
   public Namespace map(NamespaceResponse namespace) {
     requireNonNull(namespace, "namespace must not be null");
     return new Namespace(
diff --git a/src/main/java/marquez/api/mappers/NamespaceMapper.java b/src/main/java/marquez/api/mappers/NamespaceMapper.java
new file mode 100644
index 0000000000..2373c68919
--- /dev/null
+++ b/src/main/java/marquez/api/mappers/NamespaceMapper.java
@@ -0,0 +1,30 @@
+/*
+ * 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 marquez.api.mappers;
+
+import lombok.NonNull;
+import marquez.api.models.NamespaceRequest;
+import marquez.common.models.NamespaceName;
+import marquez.service.models.Namespace;
+
+public final class NamespaceMapper {
+  private NamespaceMapper() {}
+
+  public static Namespace map(
+      @NonNull NamespaceName namespaceName, @NonNull NamespaceRequest request) {
+    return new Namespace(
+        namespaceName.getValue(), request.getOwner(), request.getDescription().orElse(null));
+  }
+}
diff --git a/src/main/java/marquez/service/models/Namespace.java b/src/main/java/marquez/service/models/Namespace.java
index ac7340048c..a3b24aaec6 100644
--- a/src/main/java/marquez/service/models/Namespace.java
+++ b/src/main/java/marquez/service/models/Namespace.java
@@ -43,4 +43,12 @@ public Namespace(
     this.ownerName = ownerName;
     this.description = description;
   }
+
+  public Namespace(String name, String ownerName, String description) {
+    this.guid = null;
+    this.name = name;
+    this.createdAt = null;
+    this.ownerName = ownerName;
+    this.description = description;
+  }
 }