diff --git a/app/assets/stylesheets/components/table.scss b/app/assets/stylesheets/components/table.scss
index 14ae48f10..563323692 100644
--- a/app/assets/stylesheets/components/table.scss
+++ b/app/assets/stylesheets/components/table.scss
@@ -156,6 +156,18 @@
 
   }
 
+  td.table-field-wrap-text {
+
+    div {
+      white-space: normal;
+    }
+
+    ul li {
+      margin-bottom: 5px;
+    }
+
+  }
+
   .table-heading {
     margin-bottom: 20px;
   }
diff --git a/app/main/forms.py b/app/main/forms.py
index e2943dfbe..be52c3609 100644
--- a/app/main/forms.py
+++ b/app/main/forms.py
@@ -1706,6 +1706,10 @@ class ServiceEditInboundNumberForm(StripWhitespaceForm):
     is_default = GovukCheckboxField("Make this text message sender the default")
 
 
+class EditServiceNotesForm(StripWhitespaceForm):
+    notes = TextAreaField(validators=[])
+
+
 class ServiceLetterContactBlockForm(StripWhitespaceForm):
     letter_contact_block = TextAreaField(
         validators=[
diff --git a/app/main/views/service_settings.py b/app/main/views/service_settings.py
index b11345304..1ff6fbe9f 100644
--- a/app/main/views/service_settings.py
+++ b/app/main/views/service_settings.py
@@ -34,6 +34,7 @@ from app.main import main
 from app.main.forms import (
     BrandingOptions,
     ConfirmPasswordForm,
+    EditServiceNotesForm,
     EstimateUsageForm,
     FreeSMSAllowance,
     LinkOrganisationsForm,
@@ -1188,6 +1189,27 @@ def edit_data_retention(service_id, data_retention_id):
     )
 
 
+@main.route("/services/<uuid:service_id>/notes", methods=['GET', 'POST'])
+@user_has_permissions('manage_service')
+def edit_service_notes(service_id):
+    form = EditServiceNotesForm(notes=current_service.notes)
+
+    if form.validate_on_submit():
+
+        if form.notes.data == current_service.notes:
+            return redirect(url_for('.service_settings', service_id=service_id))
+
+        current_service.update(
+            notes=form.notes.data
+        )
+        return redirect(url_for('.service_settings', service_id=service_id))
+
+    return render_template(
+        'views/service-settings/edit-service-notes.html',
+        form=form,
+    )
+
+
 def get_branding_as_value_and_label(email_branding):
     return [
         (branding['id'], branding['name'])
diff --git a/app/models/service.py b/app/models/service.py
index 3f699e54d..e3a23fc54 100644
--- a/app/models/service.py
+++ b/app/models/service.py
@@ -37,6 +37,7 @@ class Service(JSONModel):
         'message_limit',
         'rate_limit',
         'name',
+        'notes',
         'prefix_sms',
         'research_mode',
         'service_callback_api',
diff --git a/app/navigation.py b/app/navigation.py
index 22f5b7924..3537fb7d3 100644
--- a/app/navigation.py
+++ b/app/navigation.py
@@ -190,6 +190,7 @@ class HeaderNavigation(Navigation):
         'edit_organisation_name',
         'edit_organisation_type',
         'edit_provider',
+        'edit_service_notes',
         'edit_service_template',
         'edit_template_postage',
         'edit_user_org_permissions',
@@ -582,6 +583,7 @@ class MainNavigation(Navigation):
         'edit_organisation_name',
         'edit_organisation_type',
         'edit_provider',
+        'edit_service_notes',
         'edit_sms_provider_ratio',
         'edit_user_org_permissions',
         'email_branding',
@@ -835,6 +837,7 @@ class CaseworkNavigation(Navigation):
         'edit_organisation_name',
         'edit_organisation_type',
         'edit_provider',
+        'edit_service_notes',
         'edit_sms_provider_ratio',
         'edit_service_template',
         'edit_template_postage',
@@ -1158,6 +1161,7 @@ class OrgNavigation(Navigation):
         'download_notifications_csv',
         'edit_data_retention',
         'edit_provider',
+        'edit_service_notes',
         'edit_service_template',
         'edit_sms_provider_ratio',
         'edit_template_postage',
diff --git a/app/notify_client/service_api_client.py b/app/notify_client/service_api_client.py
index ac068dd8f..a3dfbcc40 100644
--- a/app/notify_client/service_api_client.py
+++ b/app/notify_client/service_api_client.py
@@ -109,12 +109,12 @@ class ServiceAPIClient(NotifyAdminAPIClient):
             'go_live_user',
             'go_live_at',
             'rate_limit',
+            'notes',
         }
         if disallowed_attributes:
             raise TypeError('Not allowed to update service attributes: {}'.format(
                 ", ".join(disallowed_attributes)
             ))
-
         endpoint = "/service/{0}".format(service_id)
         return self.post(endpoint, data)
 
diff --git a/app/templates/components/table.html b/app/templates/components/table.html
index 72b6cdc3b..cfd029ee8 100644
--- a/app/templates/components/table.html
+++ b/app/templates/components/table.html
@@ -63,12 +63,13 @@
   {% endif %}
 {%- endmacro %}
 
-{% macro field(align='left', status='', border=True, colspan=None) -%}
+{% macro field(align='left', status='', border=True, colspan=None, wrap=False) -%}
 
     {% set field_alignment = 'table-field-right-aligned' if align == 'right' else 'table-field-left-aligned' %}
     {% set border = '' if border else 'table-field-noborder' %}
+    {% set wrap = 'table-field-wrap-text' if wrap else '' %}
 
-    <td class="{{ [field_alignment, border]|join(' ') }}" {% if colspan %}colspan="{{ colspan }}"{% endif %}>
+    <td class="{{ [field_alignment, border, wrap]|join(' ') }}" {% if colspan %}colspan="{{ colspan }}"{% endif %}>
       <div class="{{ 'table-field-status-' + status if status }}">{{ caller() }}</div>
     </td>
 {%- endmacro %}
@@ -85,8 +86,8 @@
   </td>
 {%- endmacro %}
 
-{% macro text_field(text, status='', truncate=false) -%}
-  {% call field(status=status) %}
+{% macro text_field(text, status='', truncate=false, wrap=False) -%}
+  {% call field(status=status, wrap=wrap) %}
     {% if text is iterable and text is not string %}
       <ul>
         {% for item in text %}
@@ -105,11 +106,12 @@
   {% endcall %}
 {%- endmacro %}
 
-{% macro optional_text_field(text, default='Not set', truncate=false) -%}
+{% macro optional_text_field(text, default='Not set', truncate=false, wrap=False) -%}
   {{ text_field(
     text or default,
     status='' if text else 'default',
-    truncate=truncate
+    truncate=truncate,
+    wrap=wrap
   ) }}
 {%- endmacro %}
 
diff --git a/app/templates/views/service-settings.html b/app/templates/views/service-settings.html
index 668939cc5..caa3099c7 100644
--- a/app/templates/views/service-settings.html
+++ b/app/templates/views/service-settings.html
@@ -335,6 +335,12 @@
             {{ edit_field('Change', url_for('.service_switch_count_as_live', service_id=current_service.id), suffix='if service is counted in list of live services') }}
           {% endcall %}
 
+          {% call row() %}
+            {{ text_field('Notes')}}
+            {{ optional_text_field(current_service.notes, default="No notes yet", wrap=True) }}
+            {{ edit_field('Change', url_for('.edit_service_notes', service_id=current_service.id), suffix='the notes for the service') }}
+          {% endcall %}
+
           {% call row() %}
             {{ text_field('Organisation')}}
             {% call field() %}
diff --git a/app/templates/views/service-settings/edit-service-notes.html b/app/templates/views/service-settings/edit-service-notes.html
new file mode 100644
index 000000000..a00e073a7
--- /dev/null
+++ b/app/templates/views/service-settings/edit-service-notes.html
@@ -0,0 +1,28 @@
+{% extends "withnav_template.html" %}
+{% from "components/page-header.html" import page_header %}
+{% from "components/page-footer.html" import page_footer %}
+{% from "components/form.html" import form_wrapper %}
+{% from "components/textbox.html" import textbox %}
+
+{% block service_page_title %}
+  Data retention
+{% endblock %}
+
+{% block maincolumn_content %}
+
+    {{ page_header(
+      'Edit service notes',
+      back_link=url_for('.service_settings', service_id=current_service.id)
+    ) }}
+    {% call form_wrapper() %}
+    {{ textbox(
+      form.notes,
+      rows=4,
+      width='1-1',
+      autofocus=True,
+      autosize=True,
+    ) }}
+      {{ page_footer('Save') }}
+    {% endcall %}
+
+{% endblock %}
diff --git a/tests/__init__.py b/tests/__init__.py
index 8c7553c08..0164f9e3d 100644
--- a/tests/__init__.py
+++ b/tests/__init__.py
@@ -150,6 +150,7 @@ def service_json(
     contact_link=None,
     organisation_id=None,
     rate_limit=3000,
+    notes=None,
 ):
     if users is None:
         users = []
@@ -188,6 +189,7 @@ def service_json(
         'consent_to_research': True,
         'count_as_live': True,
         'organisation': organisation_id,
+        'notes': notes
     }
 
 
diff --git a/tests/app/main/views/test_service_settings.py b/tests/app/main/views/test_service_settings.py
index b392136a0..f6f0d05aa 100644
--- a/tests/app/main/views/test_service_settings.py
+++ b/tests/app/main/views/test_service_settings.py
@@ -100,6 +100,7 @@ def mock_get_service_settings_page_common(
         'Label Value Action',
         'Live Off Change service status',
         'Count in list of live services Yes Change if service is counted in list of live services',
+        'Notes No notes yet Change the notes for the service',
         'Organisation Test organisation Central government Change organisation for service',
         'Rate limit 3,000 per minute Change rate limit',
         'Message limit 1,000 per day Change daily message limit',
@@ -5231,3 +5232,51 @@ def test_update_service_data_retention_populates_form(
     assert response.status_code == 200
     page = BeautifulSoup(response.data.decode('utf-8'), 'html.parser')
     assert page.find('input', attrs={'name': 'days_of_retention'})['value'] == '5'
+
+
+def test_service_settings_links_to_edit_service_notes_page_for_platform_admins(
+    mocker,
+    service_one,
+    platform_admin_client,
+    no_reply_to_email_addresses,
+    no_letter_contact_blocks,
+    single_sms_sender,
+    mock_get_service_settings_page_common,
+    mock_get_organisation,
+):
+    response = platform_admin_client.get(url_for(
+        '.service_settings', service_id=SERVICE_ONE_ID
+    ))
+    page = BeautifulSoup(response.data.decode('utf-8'), 'html.parser')
+    assert len(page.find_all('a', attrs={'href': '/services/{}/notes'.format(SERVICE_ONE_ID)})) == 1
+
+
+def test_view_edit_service_notes(
+        platform_admin_client,
+        service_one,
+
+):
+    response = platform_admin_client.get(url_for('main.edit_service_notes', service_id=SERVICE_ONE_ID))
+    page = BeautifulSoup(response.data.decode('utf-8'), 'html.parser')
+    assert page.select_one('h1').text == "Edit service notes"
+    assert page.find('label', class_="form-label").text.strip() == "Notes"
+    assert page.find('textarea').attrs["name"] == "notes"
+
+
+def test_update_service_notes(
+        platform_admin_client,
+        service_one,
+        mock_update_service
+):
+    response = platform_admin_client.post(
+        url_for(
+            'main.edit_service_notes',
+            service_id=SERVICE_ONE_ID,
+        ),
+        data={'notes': "Very fluffy"}
+    )
+    assert response.status_code == 302
+    settings_url = url_for(
+        'main.service_settings', service_id=SERVICE_ONE_ID, _external=True)
+    assert settings_url == response.location
+    mock_update_service.assert_called_with(SERVICE_ONE_ID, notes="Very fluffy")