diff --git a/app/models.py b/app/models.py
index eae9c921a..1def4e8fb 100644
--- a/app/models.py
+++ b/app/models.py
@@ -1009,6 +1009,7 @@ class TemplateBase(db.Model):
                 for key in self._as_utils_template().placeholders
             },
             "postage": self.postage,
+            "letter_contact_block": self.service_letter_contact.contact_block if self.service_letter_contact else None,
         }
 
         return serialized
diff --git a/tests/app/db.py b/tests/app/db.py
index 08a91e453..7b9099894 100644
--- a/tests/app/db.py
+++ b/tests/app/db.py
@@ -182,6 +182,7 @@ def create_template(
         folder=None,
         postage=None,
         process_type='normal',
+        contact_block_id=None
 ):
     data = {
         'name': template_name or '{} Template Name'.format(template_type),
@@ -192,10 +193,12 @@ def create_template(
         'reply_to': reply_to,
         'hidden': hidden,
         'folder': folder,
-        'process_type': process_type
+        'process_type': process_type,
     }
     if template_type == LETTER_TYPE:
         data["postage"] = postage or "second"
+        if contact_block_id:
+            data['service_letter_contact_id'] = contact_block_id
     if template_type != SMS_TYPE:
         data['subject'] = subject
     template = Template(**data)
diff --git a/tests/app/v2/template/test_get_template.py b/tests/app/v2/template/test_get_template.py
index 2616b4489..0c9cef27c 100644
--- a/tests/app/v2/template/test_get_template.py
+++ b/tests/app/v2/template/test_get_template.py
@@ -19,7 +19,12 @@ valid_version_params = [None, 1]
 def test_get_template_by_id_returns_200(
     client, sample_service, tmp_type, expected_name, expected_subject, version, postage
 ):
-    template = create_template(sample_service, template_type=tmp_type)
+    letter_contact_block_id = None
+    if tmp_type == 'letter':
+        letter_contact_block = create_letter_contact(sample_service, "Buckingham Palace, London, SW1A 1AA")
+        letter_contact_block_id = letter_contact_block.id
+
+    template = create_template(sample_service, template_type=tmp_type, contact_block_id=(letter_contact_block_id))
     auth_header = create_authorization_header(service_id=sample_service.id)
 
     version_path = '/version/{}'.format(version) if version else ''
@@ -44,6 +49,7 @@ def test_get_template_by_id_returns_200(
         'name': expected_name,
         'personalisation': {},
         'postage': postage,
+        'letter_contact_block': letter_contact_block.contact_block if letter_contact_block_id else None,
     }
 
     assert json_response == expected_response