diff --git a/app/models/application_type_overrides.rb b/app/models/application_type_overrides.rb
new file mode 100644
index 0000000000..2a1f359901
--- /dev/null
+++ b/app/models/application_type_overrides.rb
@@ -0,0 +1,13 @@
+# frozen_string_literal: true
+
+class ApplicationTypeOverrides
+  include StoreModel::Model
+
+  attribute :code, :string
+  attribute :determination_period_days, :integer
+
+  validates :determination_period_days, presence: true
+  validates :determination_period_days, numericality: {only_integer: true}
+  validates :determination_period_days, numericality: {greater_than_or_equal_to: 1}
+  validates :determination_period_days, numericality: {less_than_or_equal_to: 99}
+end
diff --git a/app/models/local_authority.rb b/app/models/local_authority.rb
index b89136630e..4c9a1e5766 100644
--- a/app/models/local_authority.rb
+++ b/app/models/local_authority.rb
@@ -1,6 +1,14 @@
 # frozen_string_literal: true
 
 class LocalAuthority < ApplicationRecord
+  include StoreModel::NestedAttributes
+
+  attribute :application_type_overrides, ApplicationTypeOverrides.to_array_type
+
+  validates :application_type_overrides, store_model: {merge_errors: true}
+
+  accepts_nested_attributes_for :application_type_overrides
+
   with_options dependent: :destroy do
     has_many :users
     has_many :planning_applications, -> { kept }
diff --git a/app/models/planning_application.rb b/app/models/planning_application.rb
index 150d8026e7..d6b55d1e28 100644
--- a/app/models/planning_application.rb
+++ b/app/models/planning_application.rb
@@ -1029,7 +1029,13 @@ def set_key_dates
   end
 
   def application_type_determination_period
-    application_type.determination_period_days || DAYS_TO_EXPIRE
+    determination_period_days_for_pre_app ||
+      application_type.determination_period_days ||
+      DAYS_TO_EXPIRE
+  end
+
+  def determination_period_days_for_pre_app
+    local_authority.application_type_overrides.find { |ato| ato.code == "preApp" }&.determination_period_days if pre_application?
   end
 
   def set_change_access_id
diff --git a/db/seeds/local_authorities.yml b/db/seeds/local_authorities.yml
index 644e75346b..9cacfc05f4 100644
--- a/db/seeds/local_authorities.yml
+++ b/db/seeds/local_authorities.yml
@@ -10,6 +10,9 @@
   email_address: "planning@lambeth.gov.uk"
   feedback_email: "digitalplanning@lambeth.gov.uk"
   press_notice_email: "digitalplanning@lambeth.gov.uk"
+  application_type_overrides:
+    - code: "preApp"
+      determination_period_days: 30
 
 - subdomain: "southwark"
   council_code: "SWK"
@@ -22,6 +25,9 @@
   email_address: "planning@southwark.gov.uk"
   feedback_email: "digital.projects@southwark.gov.uk"
   press_notice_email: "digital.projects@southwark.gov.uk"
+  application_type_overrides:
+    - code: "preApp"
+      determination_period_days: 30
 
 - subdomain: "buckinghamshire"
   council_code: "BUC"
@@ -34,3 +40,6 @@
   email_address: "planning@buckinghamshire.gov.uk"
   feedback_email: "planning.digital@buckinghamshire.gov.uk"
   press_notice_email: "planning.digital@buckinghamshire.gov.uk"
+  application_type_overrides:
+    - code: "preApp"
+      determination_period_days: 30
diff --git a/engines/bops_admin/app/controllers/bops_admin/determination_periods_controller.rb b/engines/bops_admin/app/controllers/bops_admin/determination_periods_controller.rb
new file mode 100644
index 0000000000..91b9eba840
--- /dev/null
+++ b/engines/bops_admin/app/controllers/bops_admin/determination_periods_controller.rb
@@ -0,0 +1,36 @@
+# frozen_string_literal: true
+
+module BopsAdmin
+  class DeterminationPeriodsController < ApplicationController
+    def edit
+      respond_to do |format|
+        format.html
+      end
+    end
+
+    def update
+      respond_to do |format|
+        if current_local_authority.update(application_type_overrides_params, :application_type_overrides)
+          format.html do
+            redirect_to setting_path, notice: t(".success")
+          end
+        else
+          format.html { render :edit }
+        end
+      end
+    end
+
+    private
+
+    def application_type_overrides_params
+      params.require(:local_authority).permit(application_type_overrides_attributes:)
+    end
+
+    def application_type_overrides_attributes
+      [
+        :determination_period_days,
+        code: :preApp
+      ]
+    end
+  end
+end
diff --git a/engines/bops_admin/app/controllers/bops_admin/settings_controller.rb b/engines/bops_admin/app/controllers/bops_admin/settings_controller.rb
new file mode 100644
index 0000000000..6732f8560d
--- /dev/null
+++ b/engines/bops_admin/app/controllers/bops_admin/settings_controller.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+module BopsAdmin
+  class SettingsController < ApplicationController
+    before_action :set_application_type_overrides
+
+    def show
+      respond_to do |format|
+        format.html
+      end
+    end
+
+    private
+
+    def set_application_type_overrides
+      @application_type_overrides = current_local_authority.application_type_overrides
+    end
+  end
+end
diff --git a/engines/bops_admin/app/helpers/bops_admin/application_helper.rb b/engines/bops_admin/app/helpers/bops_admin/application_helper.rb
index da0d51c77a..6f3654d6d0 100644
--- a/engines/bops_admin/app/helpers/bops_admin/application_helper.rb
+++ b/engines/bops_admin/app/helpers/bops_admin/application_helper.rb
@@ -23,6 +23,8 @@ def active_page_key
       case controller_name
       when "dashboard"
         "dashboard"
+      when "settings", "determination_periods"
+        "setting"
       when "tokens"
         "tokens"
       when "users"
@@ -43,6 +45,7 @@ def active_page_key
     def nav_items
       [
         {link: {text: "Dashboard", href: root_path}, current: active_page_key?("dashboard")},
+        {link: {text: "Application settings", href: setting_path}, current: active_page_key?("setting")},
         {link: {text: "Consultees", href: consultees_path}, current: active_page_key?("consultees")},
         {link: {text: "Informatives", href: informatives_path}, current: active_page_key?("informatives")},
         {link: {text: "Policy", href: policy_root_path}, current: active_page_key?("policy")},
diff --git a/engines/bops_admin/app/views/bops_admin/determination_periods/edit.html.erb b/engines/bops_admin/app/views/bops_admin/determination_periods/edit.html.erb
new file mode 100644
index 0000000000..710fc456bc
--- /dev/null
+++ b/engines/bops_admin/app/views/bops_admin/determination_periods/edit.html.erb
@@ -0,0 +1,26 @@
+<% content_for :page_title do %>
+  <%= t(".determination_period") %> - <%= t("page_title") %>
+<% end %>
+
+<% add_parent_breadcrumb_link "Home", root_path %>
+
+<% content_for :title, t(".determination_period") %>
+
+<div class="govuk-grid-row">
+  <div class="govuk-grid-column-full">
+    <%= form_with model: current_local_authority, url: [:setting, :determination_period] do |form| %>
+      <%= form.govuk_error_summary %>
+
+      <%= form.fields_for :application_type_overrides do |ff| %>
+        <%= ff.govuk_text_field :determination_period_days, width: 5,
+              label: {text: t(".set_determination_period"), size: "l"},
+              hint: {text: t(".hint")},
+              suffix_text: t(".days"),
+              value: current_local_authority&.application_type_overrides&.map(&:determination_period_days) %>
+      <% end %>
+
+      <%= form.govuk_submit(t(".save")) %>
+      <%= govuk_button_link_to t("back"), setting_path, secondary: true %>
+    <% end %>
+  </div>
+</div>
diff --git a/engines/bops_admin/app/views/bops_admin/settings/show.html.erb b/engines/bops_admin/app/views/bops_admin/settings/show.html.erb
new file mode 100644
index 0000000000..2a05e5eefe
--- /dev/null
+++ b/engines/bops_admin/app/views/bops_admin/settings/show.html.erb
@@ -0,0 +1,18 @@
+<% content_for :page_title do %>
+  <%= t(".application_settings") %> - <%= t("page_title") %>
+<% end %>
+
+<div class="govuk-grid-row">
+  <div class="govuk-grid-column-full">
+    <h1 class="govuk-heading-l"><%= t(".application_settings") %></h1>
+
+    <h2 class="govuk-heading-m"><%= t(".determination_period") %></h2>
+    <%= govuk_summary_list do |summary_list|
+          summary_list.with_row do |row|
+            row.with_key { t(".pre_app_determination_period") }
+            row.with_value { t(".determination_period_including_bank_holidays", count: @application_type_overrides.map(&:determination_period_days).join(" ")) if @application_type_overrides.map(&:determination_period_days).join(" ") }
+            row.with_action(text: t(".change"), href: url_for([:edit, :setting, :determination_period]), visually_hidden_text: t(".determination_period"))
+          end
+        end %>
+  </div>
+</div>
diff --git a/engines/bops_admin/config/locales/en.yml b/engines/bops_admin/config/locales/en.yml
index 227b2d834f..5f08f847a0 100644
--- a/engines/bops_admin/config/locales/en.yml
+++ b/engines/bops_admin/config/locales/en.yml
@@ -49,6 +49,15 @@ en:
       show:
         administrator_dashboard: Administrator dashboard
         welcome_message: Welcome %{name}
+    determination_periods:
+      edit:
+        days: days
+        determination_period: Determination period
+        hint: Choose the length of the determination period for the pre-application type.
+        save: Save
+        set_determination_period: Set determination period
+      update:
+        success: Determination period successfully updated
     informatives:
       create:
         informative_successfully_created: Informative successfully created
@@ -258,6 +267,15 @@ en:
         telephone_number_hint: This is the number that applicants or neighbours can call if they need information in alternative formats.
       update:
         profile_successfully_updated: Council information successfully updated
+    settings:
+      show:
+        application_settings: Application settings
+        change: Change
+        determination_period: Determination period
+        determination_period_including_bank_holidays:
+          one: 1 day - bank holidays included
+          other: "%{count} days - bank holidays included"
+        pre_app_determination_period: Pre-application determination period
     tokens:
       create:
         success: API token successfully created
diff --git a/engines/bops_admin/config/routes.rb b/engines/bops_admin/config/routes.rb
index 6d15d41f26..6b4b591cee 100644
--- a/engines/bops_admin/config/routes.rb
+++ b/engines/bops_admin/config/routes.rb
@@ -8,6 +8,10 @@
 
   resources :consultees, except: %i[show]
 
+  resource :setting, only: %i[show] do
+    resource :determination_period, only: %i[edit update]
+  end
+
   resources :informatives, except: %i[show]
 
   scope "/policy" do
diff --git a/engines/bops_admin/spec/system/application_settings_spec.rb b/engines/bops_admin/spec/system/application_settings_spec.rb
new file mode 100644
index 0000000000..4671b2f29d
--- /dev/null
+++ b/engines/bops_admin/spec/system/application_settings_spec.rb
@@ -0,0 +1,76 @@
+# frozen_string_literal: true
+
+require "rails_helper"
+
+RSpec.describe "Profile", type: :system do
+  let(:local_authority) { create(:local_authority, :default, :with_api_user) }
+  let(:user) { create(:user, :administrator, local_authority:) }
+
+  before do
+    sign_in(user)
+  end
+
+  it "shows the council as active on the dashboard" do
+    visit "/admin/dashboard"
+    expect(page).to have_content("Active")
+  end
+
+  it "allows the administrator to view the determination period days" do
+    visit "/admin/setting"
+    expect(page).to have_selector("h1", text: "Application settings")
+    expect(page).to have_selector("h2", text: "Determination period")
+
+    within "dl div:nth-child(1)" do
+      expect(page).to have_selector("dt", text: "Pre-application determination period")
+      expect(page).to have_selector("dd", text: "30 days - bank holidays included")
+      expect(page).to have_selector("dd > a", text: "Change")
+
+      expect(page).to have_link(
+        "Change",
+        href: "/admin/setting/determination_period/edit"
+      )
+    end
+  end
+
+  it "allows the administrator to edit determination" do
+    visit "/admin/setting"
+
+    within "dl div:nth-child(1)" do
+      expect(page).to have_selector("dt", text: "Pre-application determination period")
+      expect(page).to have_selector("dd", text: "30 days - bank holidays included")
+      click_link "Change"
+    end
+
+    # Set determination period
+    expect(page).to have_selector(".govuk-label", text: "Set determination period")
+    expect(page).to have_selector("div.govuk-hint", text: "Choose the length of the determination period for the pre-application type.")
+
+    fill_in "Set determination period", with: ""
+    click_button "Save"
+
+    expect(page).to have_content("can't be blank")
+
+    fill_in "Set determination period", with: "not an integer"
+    click_button "Save"
+
+    expect(page).to have_content("is not a number")
+
+    fill_in "Set determination period", with: "1.1"
+    click_button "Save"
+
+    expect(page).to have_content("must be an integer")
+
+    fill_in "Set determination period", with: "0"
+    click_button "Save"
+    expect(page).to have_content("must be greater than or equal to 1")
+
+    fill_in "Set determination period", with: "100"
+    click_button "Save"
+    expect(page).to have_content("must be less than or equal to 99")
+
+    fill_in "Set determination period", with: "25"
+    click_button "Save"
+
+    expect(page).to have_content("Determination period successfully updated")
+  end
+end
diff --git a/spec/factories/local_authorities.rb b/spec/factories/local_authorities.rb
index bf47567da9..56b3329404 100644
--- a/spec/factories/local_authorities.rb
+++ b/spec/factories/local_authorities.rb
@@ -14,6 +14,14 @@
     feedback_email { "feedback_email@buckinghamshire.gov.uk" }
     email_reply_to_id { "4896bb50-4f4c-4b4d-ad67-2caddddde125" }
     active { true }
+    application_type_overrides do
+      [
+        {
+          code: :preApp,
+          determination_period_days: 30
+        }
+      ]
+    end
 
     trait :default do
       council_code { "PlanX" }