diff --git a/app/models/derived_variables/lettings_log_variables.rb b/app/models/derived_variables/lettings_log_variables.rb
index abce99667..8be16eaa0 100644
--- a/app/models/derived_variables/lettings_log_variables.rb
+++ b/app/models/derived_variables/lettings_log_variables.rb
@@ -68,7 +68,7 @@ module DerivedVariables::LettingsLogVariables
     self.has_benefits = get_has_benefits
     self.tshortfall_known = 0 if tshortfall
     self.nocharge = household_charge # Nocharge: 0 = No, 1 = Yes, Household charge: 0 = Yes, 1 = No
-    if form.start_year_2024_or_later? && is_bedsit?
+    if is_bedsit?
       self.beds = 1
     end
     if bedsit_changed_to_not_bedsit? # make user answer num of bedrooms again
@@ -127,18 +127,16 @@ module DerivedVariables::LettingsLogVariables
       self.previous_la_known = nil if is_renewal?
     end
 
-    if form.start_year_2024_or_later?
-      if manual_address_entry_selected
-        self.uprn_known = 0
-        self.uprn_selection = nil
-        self.uprn_confirmed = nil
-      else
-        self.uprn_confirmed = 1 if uprn.present?
-        self.uprn_known = 1 if uprn.present?
-        reset_address_fields! if uprn.blank?
-        if uprn_changed?
-          self.uprn_selection = uprn
-        end
+    if manual_address_entry_selected
+      self.uprn_known = 0
+      self.uprn_selection = nil
+      self.uprn_confirmed = nil
+    else
+      self.uprn_confirmed = 1 if uprn.present?
+      self.uprn_known = 1 if uprn.present?
+      reset_address_fields! if uprn.blank?
+      if uprn_changed?
+        self.uprn_selection = uprn
       end
     end
 
@@ -274,7 +272,7 @@ private
       self.wchair = nil
       self.location_id = nil
     end
-    if form.start_year_2024_or_later? && unittype_gn_changed? && unittype_gn_was == 2
+    if unittype_gn_changed? && unittype_gn_was == 2
       self.beds = nil
     end
   end
diff --git a/app/models/lettings_log.rb b/app/models/lettings_log.rb
index 0ac9f728d..eab3a9895 100644
--- a/app/models/lettings_log.rb
+++ b/app/models/lettings_log.rb
@@ -438,7 +438,7 @@ class LettingsLog < Log
   end
 
   def is_beds_inferred?
-    form.start_year_2024_or_later? && is_bedsit?
+    is_bedsit?
   end
 
   def bedsit_changed_to_not_bedsit?
@@ -1017,7 +1017,6 @@ private
   def should_process_address_change?
     return unless uprn_selection || select_best_address_match
     return unless startdate
-    return unless form.start_year_2024_or_later?
     return if skip_address_lookup
 
     if select_best_address_match
diff --git a/spec/shared/shared_examples_for_derived_fields.rb b/spec/shared/shared_examples_for_derived_fields.rb
index 3f746468a..c41d23967 100644
--- a/spec/shared/shared_examples_for_derived_fields.rb
+++ b/spec/shared/shared_examples_for_derived_fields.rb
@@ -23,16 +23,5 @@ RSpec.shared_examples "shared examples for derived fields" do |log_type|
                                         .and change(log, :uprn).from("1").to(nil)
                                         .and change(log, :uprn_confirmed).from(0).to(nil)
     end
-
-    it "does not affect older logs with uprn_confirmed == 0" do
-      Timecop.freeze(Time.zone.local(2023, 4, 1)) do
-        log = FactoryBot.build(log_type, uprn_known: 0, uprn: nil, uprn_confirmed: 0)
-        allow(log.form).to receive(:start_year_2024_or_later?).and_return(false)
-        expect { log.set_derived_fields! }.to not_change(log, :uprn_known)
-                                          .and not_change(log, :uprn)
-                                          .and not_change(log, :uprn_confirmed)
-      end
-      Timecop.return
-    end
   end
 end