diff --git a/app/models/lettings_log.rb b/app/models/lettings_log.rb
index cd1fffd22..a4a3f9192 100644
--- a/app/models/lettings_log.rb
+++ b/app/models/lettings_log.rb
@@ -7,7 +7,6 @@ class LettingsLogValidator < ActiveModel::Validator
   include Validations::FinancialValidations
   include Validations::TenancyValidations
   include Validations::DateValidations
-  include Validations::LocalAuthorityValidations
 
   def validate(record)
     validation_methods = public_methods.select { |method| method.starts_with?("validate_") }
diff --git a/app/models/sales_log.rb b/app/models/sales_log.rb
index ebb3ef4e3..4c849826d 100644
--- a/app/models/sales_log.rb
+++ b/app/models/sales_log.rb
@@ -6,7 +6,6 @@ class SalesLogValidator < ActiveModel::Validator
   include Validations::Sales::FinancialValidations
   include Validations::Sales::SaleInformationValidations
   include Validations::SharedValidations
-  include Validations::LocalAuthorityValidations
 
   def validate(record)
     validation_methods = public_methods.select { |method| method.starts_with?("validate_") }
diff --git a/app/models/validations/local_authority_validations.rb b/app/models/validations/local_authority_validations.rb
deleted file mode 100644
index 76377d587..000000000
--- a/app/models/validations/local_authority_validations.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-module Validations::LocalAuthorityValidations
-  def validate_previous_accommodation_postcode(record)
-    postcode = record.ppostcode_full
-    if record.previous_postcode_known? && (postcode.blank? || !postcode.match(POSTCODE_REGEXP))
-      record.errors.add :ppostcode_full, I18n.t("validations.postcode")
-      record.errors.add :ppostcodenk, I18n.t("validations.postcode")
-    end
-  end
-end
diff --git a/app/models/validations/shared_validations.rb b/app/models/validations/shared_validations.rb
index f032a089c..e8dd5e876 100644
--- a/app/models/validations/shared_validations.rb
+++ b/app/models/validations/shared_validations.rb
@@ -43,6 +43,15 @@ module Validations::SharedValidations
     end
   end
 
+  def validate_previous_accommodation_postcode(record)
+    postcode = record.ppostcode_full
+    if record.previous_postcode_known? && (postcode.blank? || !postcode.match(POSTCODE_REGEXP))
+      error_message = I18n.t("validations.postcode")
+      record.errors.add :ppostcode_full, message: error_message
+      record.errors.add :ppcodenk, message: error_message
+    end
+  end
+
   def location_during_startdate_validation(record, field)
     location_inactive_status = inactive_status(record.startdate, record.location)
 
@@ -96,6 +105,8 @@ module Validations::SharedValidations
     end
   end
 
+
+
 private
 
   def person_is_partner?(relationship)
diff --git a/spec/models/validations/local_authority_validations_spec.rb b/spec/models/validations/local_authority_validations_spec.rb
index 1c0388c34..c2c7b3ba4 100644
--- a/spec/models/validations/local_authority_validations_spec.rb
+++ b/spec/models/validations/local_authority_validations_spec.rb
@@ -6,33 +6,5 @@ RSpec.describe Validations::LocalAuthorityValidations do
   let(:validator_class) { Class.new { include Validations::LocalAuthorityValidations } }
   let(:record) { FactoryBot.create(:lettings_log) }
 
-  describe "#validate_previous_accommodation_postcode" do
-    it "does not add an error if the record ppostcode_full is missing" do
-      record.ppostcode_full = nil
-      local_auth_validator.validate_previous_accommodation_postcode(record)
-      expect(record.errors).to be_empty
-    end
 
-    it "does not add an error if the record ppostcode_full is valid (uppercase space)" do
-      record.ppcodenk = 1
-      record.ppostcode_full = "M1 1AE"
-      local_auth_validator.validate_previous_accommodation_postcode(record)
-      expect(record.errors).to be_empty
-    end
-
-    it "does not add an error if the record ppostcode_full is valid (lowercase no space)" do
-      record.ppcodenk = 1
-      record.ppostcode_full = "m11ae"
-      local_auth_validator.validate_previous_accommodation_postcode(record)
-      expect(record.errors).to be_empty
-    end
-
-    it "does add an error when the postcode is invalid" do
-      record.ppcodenk = 1
-      record.ppostcode_full = "invalid"
-      local_auth_validator.validate_previous_accommodation_postcode(record)
-      expect(record.errors).not_to be_empty
-      expect(record.errors["ppostcode_full"]).to include(match I18n.t("validations.postcode"))
-    end
-  end
 end
diff --git a/spec/models/validations/shared_validations_spec.rb b/spec/models/validations/shared_validations_spec.rb
index 8f5038c5d..b9d29f4cb 100644
--- a/spec/models/validations/shared_validations_spec.rb
+++ b/spec/models/validations/shared_validations_spec.rb
@@ -113,4 +113,45 @@ RSpec.describe Validations::SharedValidations do
       end
     end
   end
+
+  describe "#validate_previous_accommodation_postcode" do
+    it "does not add an error if the record ppostcode_full is missing when postcode not known" do
+      record.ppcodenk = 2
+      record.ppostcode_full = nil
+      shared_validator.validate_previous_accommodation_postcode(record)
+      expect(record.errors).to be_empty
+    end
+
+    it "does add an error if the record ppostcode_full is missing when postcode is known" do
+      record.ppcodenk = 1
+      record.ppostcode_full = nil
+      shared_validator.validate_previous_accommodation_postcode(record)
+      expect(record.errors).not_to be_empty
+      expect(record.errors["ppostcode_full"].first).to eq(I18n.t("validations.postcode"))
+      expect(record.errors["ppcodenk"].first).to eq(I18n.t("validations.postcode"))
+    end
+
+    it "does not add an error if the record ppostcode_full is valid (uppercase space)" do
+      record.ppcodenk = 1
+      record.ppostcode_full = "M1 1AE"
+      shared_validator.validate_previous_accommodation_postcode(record)
+      expect(record.errors).to be_empty
+    end
+
+    it "does not add an error if the record ppostcode_full is valid (lowercase no space)" do
+      record.ppcodenk = 1
+      record.ppostcode_full = "m11ae"
+      shared_validator.validate_previous_accommodation_postcode(record)
+      expect(record.errors).to be_empty
+    end
+
+    it "does add an error when the postcode is invalid" do
+      record.ppcodenk = 1
+      record.ppostcode_full = "invalid"
+      shared_validator.validate_previous_accommodation_postcode(record)
+      expect(record.errors).not_to be_empty
+      expect(record.errors["ppostcode_full"].first).to eq(I18n.t("validations.postcode"))
+      expect(record.errors["ppcodenk"].first).to eq(I18n.t("validations.postcode"))
+    end
+  end
 end