diff --git a/app/models/validations/tenancy_validations.rb b/app/models/validations/tenancy_validations.rb
index bd55203fb..ffab51e92 100644
--- a/app/models/validations/tenancy_validations.rb
+++ b/app/models/validations/tenancy_validations.rb
@@ -10,7 +10,7 @@ module Validations::TenancyValidations
     min_tenancy_length = 1
     return if record.tenancylength.to_i.between?(min_tenancy_length, 99)
 
-    message = I18n.t("validations.tenancy.length.invalid_fixed", min_tenancy_length:)
+    message = I18n.t("validations.lettings.tenancy.length.invalid_fixed", min_tenancy_length:)
     record.errors.add :needstype, message
     record.errors.add :tenancylength, :tenancylength_invalid, message: message
     record.errors.add :tenancy, message
@@ -23,7 +23,7 @@ module Validations::TenancyValidations
     min_tenancy_length = 2
     return if record.tenancylength.to_i.between?(min_tenancy_length, 99)
 
-    message = I18n.t("validations.tenancy.length.invalid_fixed", min_tenancy_length:)
+    message = I18n.t("validations.lettings.tenancy.length.invalid_fixed", min_tenancy_length:)
     record.errors.add :needstype, message
     record.errors.add :rent_type, message
     record.errors.add :tenancylength, :tenancylength_invalid, message: message
@@ -37,7 +37,7 @@ module Validations::TenancyValidations
     min_tenancy_length = 1
     return if record.tenancylength.to_i.between?(min_tenancy_length, 99)
 
-    message = I18n.t("validations.tenancy.length.invalid_fixed", min_tenancy_length:)
+    message = I18n.t("validations.lettings.tenancy.length.invalid_fixed", min_tenancy_length:)
     record.errors.add :needstype, message
     record.errors.add :rent_type, message
     record.errors.add :tenancylength, :tenancylength_invalid, message: message
@@ -50,7 +50,7 @@ module Validations::TenancyValidations
     min_tenancy_length = 1
     return if record.tenancylength.to_i.between?(min_tenancy_length, 99)
 
-    message = I18n.t("validations.tenancy.length.invalid_periodic", min_tenancy_length:)
+    message = I18n.t("validations.lettings.tenancy.length.invalid_periodic", min_tenancy_length:)
     record.errors.add :tenancylength, :tenancylength_invalid, message: message
     record.errors.add :tenancy, message
   end
@@ -59,7 +59,7 @@ module Validations::TenancyValidations
     return if record.tenancylength.blank?
     return if record.tenancy_type_fixed_term? || record.is_periodic_tenancy?
 
-    message = I18n.t("validations.tenancy.length.fixed_term_not_required")
+    message = I18n.t("validations.lettings.tenancy.length.fixed_term_not_required")
     record.errors.add :tenancylength, :tenancylength_invalid, message: message
     record.errors.add :tenancy, message
   end
@@ -72,8 +72,8 @@ module Validations::TenancyValidations
     return unless record.collection_start_year && record.joint
 
     if record.hhmemb == 1 && record.joint == 1 && record.collection_start_year >= 2022
-      record.errors.add :joint, :not_joint_tenancy, message: I18n.t("validations.tenancy.not_joint")
-      record.errors.add :hhmemb, I18n.t("validations.tenancy.joint_more_than_one_member")
+      record.errors.add :joint, :not_joint_tenancy, message: I18n.t("validations.lettings.tenancy.joint.sole_tenancy")
+      record.errors.add :hhmemb, I18n.t("validations.lettings.tenancy.joint.multiple_members_required")
     end
   end
 end
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 7ed8f42e8..00daa90bc 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -234,7 +234,7 @@ en:
     scheme_deleted: "%{service_name} has been deleted."
     user_deleted: "%{name} has been deleted."
     organisation_deleted: "%{name} has been deleted."
-    user_updated: 
+    user_updated:
       self: "Your account details have been updated."
       other: "%{name}’s details have been updated."
 
@@ -585,14 +585,8 @@ en:
       nationality: "Select a valid nationality."
 
     tenancy:
-      length:
-        fixed_term_not_required: "You must only answer the length of the tenancy if it's fixed-term."
-        invalid_fixed: "Enter a tenancy length between %{min_tenancy_length} and 99 years for a tenancy of this type."
-        invalid_periodic: "Enter a tenancy length between %{min_tenancy_length} and 99 years (or don't specify the length) for a tenancy of this type."
       internal_transfer: "Answer must be secure tenancy as this tenancy is an internal transfer."
       cannot_be_internal_transfer: "Answer cannot be internal transfer as this is not a secure tenancy."
-      not_joint: "This cannot be a joint tenancy as you've told us there's only one person in the household."
-      joint_more_than_one_member: "There must be more than one person in the household as you've told us this is a joint tenancy."
 
     declaration:
       missing:
diff --git a/config/locales/validations/lettings/tenancy.en.yml b/config/locales/validations/lettings/tenancy.en.yml
new file mode 100644
index 000000000..7c584c88c
--- /dev/null
+++ b/config/locales/validations/lettings/tenancy.en.yml
@@ -0,0 +1,11 @@
+en:
+  validations:
+    lettings:
+      tenancy:
+        length:
+          fixed_term_not_required: "You must only answer the length of the tenancy if it's fixed-term."
+          invalid_fixed: "Enter a tenancy length between %{min_tenancy_length} and 99 years for a tenancy of this type."
+          invalid_periodic: "Enter a tenancy length between %{min_tenancy_length} and 99 years (or don't specify the length) for a tenancy of this type."
+        joint:
+          sole_tenancy: "This cannot be a joint tenancy as you've told us there's only one person in the household."
+          multiple_members_required: "There must be more than one person in the household as you've told us this is a joint tenancy."
diff --git a/spec/models/validations/tenancy_validations_spec.rb b/spec/models/validations/tenancy_validations_spec.rb
index a41752616..7a3a45bd9 100644
--- a/spec/models/validations/tenancy_validations_spec.rb
+++ b/spec/models/validations/tenancy_validations_spec.rb
@@ -76,12 +76,12 @@ RSpec.describe Validations::TenancyValidations do
       {
         name: "assured shorthold",
         code: 4,
-        expected_error: ->(min_tenancy_length) { I18n.t("validations.tenancy.length.invalid_fixed", min_tenancy_length:) },
+        expected_error: ->(min_tenancy_length) { I18n.t("validations.lettings.tenancy.length.invalid_fixed", min_tenancy_length:) },
       },
       {
         name: "secure fixed term",
         code: 6,
-        expected_error: ->(min_tenancy_length) { I18n.t("validations.tenancy.length.invalid_fixed", min_tenancy_length:) },
+        expected_error: ->(min_tenancy_length) { I18n.t("validations.lettings.tenancy.length.invalid_fixed", min_tenancy_length:) },
       },
     ]
 
@@ -211,7 +211,7 @@ RSpec.describe Validations::TenancyValidations do
       periodic_tenancy_case = {
         name: "periodic",
         code: 8,
-        expected_error: ->(min_tenancy_length) { I18n.t("validations.tenancy.length.invalid_periodic", min_tenancy_length:) },
+        expected_error: ->(min_tenancy_length) { I18n.t("validations.lettings.tenancy.length.invalid_periodic", min_tenancy_length:) },
       }
       error_fields = %w[tenancylength tenancy]
       include_examples "adds expected errors based on the tenancy length", periodic_tenancy_case, error_fields, 1
@@ -237,7 +237,7 @@ RSpec.describe Validations::TenancyValidations do
 
             it "adds errors to tenancylength and tenancy" do
               tenancy_validator.validate_tenancy_length_blank_when_not_required(record)
-              expected_error = I18n.t("validations.tenancy.length.fixed_term_not_required")
+              expected_error = I18n.t("validations.lettings.tenancy.length.fixed_term_not_required")
               expect(record.errors["tenancylength"]).to include(expected_error)
               expect(record.errors["tenancy"]).to include(expected_error)
             end
@@ -321,8 +321,8 @@ RSpec.describe Validations::TenancyValidations do
   describe "joint tenancy validation" do
     context "when the data inputter has said that there is only one member in the household" do
       let(:record) { FactoryBot.build(:lettings_log, :setup_completed, hhmemb: 1) }
-      let(:expected_error) { I18n.t("validations.tenancy.not_joint") }
-      let(:hhmemb_expected_error) { I18n.t("validations.tenancy.joint_more_than_one_member") }
+      let(:expected_error) { I18n.t("validations.lettings.tenancy.joint.sole_tenancy") }
+      let(:hhmemb_expected_error) { I18n.t("validations.lettings.tenancy.joint.multiple_members_required") }
 
       it "displays an error if the data inputter says the letting is a joint tenancy" do
         record.joint = 1