diff --git a/spec/models/case_log_spec.rb b/spec/models/case_log_spec.rb
index 2e272cf25..9df765d07 100644
--- a/spec/models/case_log_spec.rb
+++ b/spec/models/case_log_spec.rb
@@ -33,6 +33,16 @@ RSpec.describe CaseLog do
       }.to raise_error(ActiveRecord::RecordInvalid)
     end
 
+    it "raises an error when previous_postcode is present and invalid" do
+      expect {
+        described_class.create!(
+          previous_postcode: "invalid_postcode",
+          owning_organisation: owning_organisation,
+          managing_organisation: managing_organisation,
+        )
+      }.to raise_error(ActiveRecord::RecordInvalid, /#{I18n.t("validations.postcode")}/)
+    end
+
     it "validates age is a number" do
       expect {
         described_class.create!(
diff --git a/spec/models/validations/local_authority_validations_spec.rb b/spec/models/validations/local_authority_validations_spec.rb
index d5cb1b59b..dc5bebe3d 100644
--- a/spec/models/validations/local_authority_validations_spec.rb
+++ b/spec/models/validations/local_authority_validations_spec.rb
@@ -1,54 +1,33 @@
 require "rails_helper"
-require_relative "../../request_helper"
-
-RSpec.describe CaseLog do
-  let(:owning_organisation) { FactoryBot.create(:organisation) }
-  let(:managing_organisation) { owning_organisation }
-
-  before do
-    RequestHelper.stub_http_requests
-  end
-
-  describe "#new" do
-    it "raises an error when previous_postcode is present and invalid" do
-      expect {
-        described_class.create!(
-          previous_postcode: "invalid_postcode",
-          owning_organisation: owning_organisation,
-          managing_organisation: managing_organisation,
-        )
-      }.to raise_error(ActiveRecord::RecordInvalid, /#{I18n.t("validations.postcode")}/)
-    end
-  end
-end
 
 RSpec.describe Validations::LocalAuthorityValidations do
-  let(:subject) { subject_class.new }
-  let(:subject_class) { Class.new { include Validations::LocalAuthorityValidations } }
+  subject(:local_auth_validator) { validator_class.new }
+
+  let(:validator_class) { Class.new { include Validations::LocalAuthorityValidations } }
   let(:record) { FactoryBot.create(:case_log) }
 
   describe "#validate_previous_accommodation_postcode" do
     it "does not add an error if the record previous_postcode is missing" do
       record.previous_postcode = nil
-      subject.validate_previous_accommodation_postcode(record)
+      local_auth_validator.validate_previous_accommodation_postcode(record)
       expect(record.errors).to be_empty
     end
 
     it "does not add an error if the record previous_postcode is valid (uppercase space)" do
       record.previous_postcode = "M1 1AE"
-      subject.validate_previous_accommodation_postcode(record)
+      local_auth_validator.validate_previous_accommodation_postcode(record)
       expect(record.errors).to be_empty
     end
 
     it "does not add an error if the record previous_postcode is valid (lowercase no space)" do
       record.previous_postcode = "m11ae"
-      subject.validate_previous_accommodation_postcode(record)
+      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.previous_postcode = "invalid"
-      subject.validate_previous_accommodation_postcode(record)
+      local_auth_validator.validate_previous_accommodation_postcode(record)
       expect(record.errors).not_to be_empty
       expect(record.errors["previous_postcode"]).to include(match I18n.t("validations.postcode"))
     end