diff --git a/app/models.py b/app/models.py
index 4b3c24b94..5739f1659 100644
--- a/app/models.py
+++ b/app/models.py
@@ -257,6 +257,14 @@ class Service(db.Model, Versioned):
         else:
             return default_reply_to[0].email_address if default_reply_to else None
 
+    def get_default_letter_contact(self):
+        default_letter_contact = [x for x in self.letter_contacts if x.is_default]
+        if len(default_letter_contact) > 1:
+            raise Exception("There should only ever be one default")
+        else:
+            return default_letter_contact[0].contact_block if default_letter_contact else \
+                self.letter_contact_block  # need to update this to None after dropping the letter_contact_block column
+
 
 class InboundNumber(db.Model):
     __tablename__ = "inbound_numbers"
@@ -1381,3 +1389,25 @@ class ServiceEmailReplyTo(db.Model):
             'created_at': self.created_at.strftime(DATETIME_FORMAT),
             'updated_at': self.updated_at.strftime(DATETIME_FORMAT) if self.updated_at else None
         }
+
+
+class ServiceLetterContact(db.Model):
+    __tablename__ = "service_letter_contacts"
+
+    id = db.Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+
+    service_id = db.Column(UUID(as_uuid=True), db.ForeignKey('services.id'), unique=False, index=True, nullable=False)
+    service = db.relationship(Service, backref=db.backref("letter_contacts"))
+
+    contact_block = db.Column(db.Text, nullable=False, index=False, unique=False)
+    is_default = db.Column(db.Boolean, nullable=False, default=True)
+    created_at = db.Column(db.DateTime, nullable=False, default=datetime.datetime.utcnow)
+    updated_at = db.Column(db.DateTime, nullable=True, onupdate=datetime.datetime.utcnow)
+
+    def serialize(self):
+        return {
+            'contact_block': self.contact_block,
+            'is_default': self.is_default,
+            'created_at': self.created_at.strftime(DATETIME_FORMAT),
+            'updated_at': self.updated_at.strftime(DATETIME_FORMAT) if self.updated_at else None
+        }
diff --git a/migrations/versions/0122_add_service_letter_contact.py b/migrations/versions/0122_add_service_letter_contact.py
new file mode 100644
index 000000000..2fbe904c2
--- /dev/null
+++ b/migrations/versions/0122_add_service_letter_contact.py
@@ -0,0 +1,32 @@
+"""
+
+Revision ID: 0122_add_service_letter_contact
+Revises: 0121_nullable_logos
+Create Date: 2017-09-21 12:16:02.975120
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+revision = '0122_add_service_letter_contact'
+down_revision = '0121_nullable_logos'
+
+
+def upgrade():
+    op.create_table('service_letter_contacts',
+    sa.Column('id', postgresql.UUID(as_uuid=True), nullable=False),
+    sa.Column('service_id', postgresql.UUID(as_uuid=True), nullable=False),
+    sa.Column('contact_block', sa.Text(), nullable=False),
+    sa.Column('is_default', sa.Boolean(), nullable=False),
+    sa.Column('created_at', sa.DateTime(), nullable=False),
+    sa.Column('updated_at', sa.DateTime(), nullable=True),
+    sa.ForeignKeyConstraint(['service_id'], ['services.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_service_letter_contact_service_id'), 'service_letter_contacts', ['service_id'], unique=False)
+
+
+def downgrade():
+    op.drop_index(op.f('ix_service_letter_contact_service_id'), table_name='service_letter_contacts')
+    op.drop_table('service_letter_contacts')
diff --git a/tests/app/db.py b/tests/app/db.py
index 50c04bbde..f271d70e9 100644
--- a/tests/app/db.py
+++ b/tests/app/db.py
@@ -26,7 +26,8 @@ from app.models import (
     INBOUND_SMS_TYPE,
     KEY_TYPE_NORMAL,
     ServiceInboundApi,
-    ServiceEmailReplyTo
+    ServiceEmailReplyTo,
+    ServiceLetterContact
 )
 from app.dao.users_dao import save_model_user
 from app.dao.notifications_dao import dao_create_notification, dao_created_scheduled_notification
@@ -347,3 +348,21 @@ def create_reply_to_email(
     db.session.commit()
 
     return reply_to
+
+
+def create_letter_contact(
+    service,
+    contact_block,
+    is_default=True
+):
+    data = {
+        'service': service,
+        'contact_block': contact_block,
+        'is_default': is_default,
+    }
+    letter_content = ServiceLetterContact(**data)
+
+    db.session.add(letter_content)
+    db.session.commit()
+
+    return letter_content
diff --git a/tests/app/test_model.py b/tests/app/test_model.py
index b0bf01a4e..0303782ff 100644
--- a/tests/app/test_model.py
+++ b/tests/app/test_model.py
@@ -21,7 +21,13 @@ from tests.app.conftest import (
     sample_template as create_sample_template,
     sample_notification_with_job as create_sample_notification_with_job
 )
-from tests.app.db import create_notification, create_service, create_inbound_number, create_reply_to_email
+from tests.app.db import (
+    create_notification,
+    create_service,
+    create_inbound_number,
+    create_reply_to_email,
+    create_letter_contact
+)
 from tests.conftest import set_config
 
 
@@ -262,3 +268,14 @@ def test_service_get_default_reply_to_email_address(sample_service):
     create_reply_to_email(service=sample_service, email_address="default@email.com")
 
     assert sample_service.get_default_reply_to_email_address() == 'default@email.com'
+
+
+def test_service_get_default_contact_letter(sample_service):
+    create_letter_contact(service=sample_service, contact_block='London,\nNW1A 1AA')
+
+    assert sample_service.get_default_letter_contact() == 'London,\nNW1A 1AA'
+
+
+# this test will need to be removed after letter_contact_block is dropped
+def test_service_get_default_letter_contact_block_from_service(sample_service):
+    assert sample_service.get_default_letter_contact() == sample_service.letter_contact_block