diff --git a/app/models/form/sales/subsections/shared_ownership_initial_purchase.rb b/app/models/form/sales/subsections/shared_ownership_initial_purchase.rb
new file mode 100644
index 000000000..76c04d224
--- /dev/null
+++ b/app/models/form/sales/subsections/shared_ownership_initial_purchase.rb
@@ -0,0 +1,47 @@
+class Form::Sales::Subsections::SharedOwnershipInitialPurchase < ::Form::Subsection
+  def initialize(id, hsh, section)
+    super
+    @id = "shared_ownership_initial_purchase"
+    @label = "Shared ownership - initial purchase"
+    @depends_on = [{ "ownershipsch" => 1, "setup_completed?" => true, "staircase" => 2 }]
+  end
+
+  def pages
+    @pages ||= [
+      Form::Sales::Pages::Resale.new(nil, nil, self),
+      Form::Sales::Pages::LivingBeforePurchase.new("living_before_purchase_shared_ownership_joint_purchase", nil, self, ownershipsch: 1, joint_purchase: true),
+      Form::Sales::Pages::LivingBeforePurchase.new("living_before_purchase_shared_ownership", nil, self, ownershipsch: 1, joint_purchase: false),
+      Form::Sales::Pages::HandoverDate.new(nil, nil, self),
+      Form::Sales::Pages::HandoverDateCheck.new(nil, nil, self),
+      Form::Sales::Pages::BuyerPrevious.new("buyer_previous_joint_purchase", nil, self, joint_purchase: true),
+      Form::Sales::Pages::BuyerPrevious.new("buyer_previous_not_joint_purchase", nil, self, joint_purchase: false),
+      Form::Sales::Pages::PreviousBedrooms.new(nil, nil, self),
+      Form::Sales::Pages::PreviousPropertyType.new(nil, nil, self),
+      Form::Sales::Pages::PreviousTenure.new(nil, nil, self),
+      Form::Sales::Pages::ValueSharedOwnership.new(nil, nil, self),
+      Form::Sales::Pages::AboutPriceValueCheck.new("about_price_shared_ownership_value_check", nil, self),
+      Form::Sales::Pages::Equity.new(nil, nil, self),
+      Form::Sales::Pages::SharedOwnershipDepositValueCheck.new("shared_ownership_equity_value_check", nil, self),
+      Form::Sales::Pages::Mortgageused.new("mortgage_used_shared_ownership", nil, self, ownershipsch: 1),
+      Form::Sales::Pages::MortgageValueCheck.new("mortgage_used_mortgage_value_check", nil, self),
+      Form::Sales::Pages::MortgageAmount.new("mortgage_amount_shared_ownership", nil, self, ownershipsch: 1),
+      Form::Sales::Pages::SharedOwnershipDepositValueCheck.new("shared_ownership_mortgage_amount_value_check", nil, self),
+      Form::Sales::Pages::MortgageValueCheck.new("mortgage_amount_mortgage_value_check", nil, self),
+      Form::Sales::Pages::MortgageLength.new("mortgage_length_shared_ownership", nil, self, ownershipsch: 1),
+      Form::Sales::Pages::Deposit.new("deposit_shared_ownership", nil, self, ownershipsch: 1, optional: false),
+      Form::Sales::Pages::Deposit.new("deposit_shared_ownership_optional", nil, self, ownershipsch: 1, optional: true),
+      Form::Sales::Pages::DepositValueCheck.new("deposit_joint_purchase_value_check", nil, self, joint_purchase: true),
+      Form::Sales::Pages::DepositValueCheck.new("deposit_value_check", nil, self, joint_purchase: false),
+      Form::Sales::Pages::DepositDiscount.new("deposit_discount", nil, self, optional: false),
+      Form::Sales::Pages::DepositDiscount.new("deposit_discount_optional", nil, self, optional: true),
+      Form::Sales::Pages::SharedOwnershipDepositValueCheck.new("shared_ownership_deposit_value_check", nil, self),
+      Form::Sales::Pages::MonthlyRent.new(nil, nil, self),
+      Form::Sales::Pages::LeaseholdCharges.new("leasehold_charges_shared_ownership", nil, self, ownershipsch: 1),
+      Form::Sales::Pages::MonthlyChargesValueCheck.new("monthly_charges_shared_ownership_value_check", nil, self),
+    ].compact
+  end
+
+  def displayed_in_tasklist?(log)
+    log.staircase == 2 && (log.ownershipsch.nil? || log.ownershipsch == 1)
+  end
+end
diff --git a/spec/models/form/sales/subsections/shared_ownership_initial_purchase_spec.rb b/spec/models/form/sales/subsections/shared_ownership_initial_purchase_spec.rb
new file mode 100644
index 000000000..90605d917
--- /dev/null
+++ b/spec/models/form/sales/subsections/shared_ownership_initial_purchase_spec.rb
@@ -0,0 +1,94 @@
+require "rails_helper"
+
+RSpec.describe Form::Sales::Subsections::SharedOwnershipInitialPurchase, type: :model do
+  subject(:shared_ownership_initial_purchase) { described_class.new(subsection_id, subsection_definition, section) }
+
+  let(:subsection_id) { nil }
+  let(:subsection_definition) { nil }
+  let(:section) { instance_double(Form::Sales::Sections::SaleInformation) }
+
+  before do
+    allow(section).to receive(:form).and_return(instance_double(Form, start_date: Time.zone.local(2025, 4, 1)))
+  end
+
+  it "has correct section" do
+    expect(shared_ownership_initial_purchase.section).to eq(section)
+  end
+
+  it "has correct pages" do
+    expect(shared_ownership_initial_purchase.pages.map(&:id)).to eq(
+      %w[
+        resale
+        living_before_purchase_shared_ownership_joint_purchase
+        living_before_purchase_shared_ownership
+        handover_date
+        handover_date_check
+        buyer_previous_joint_purchase
+        buyer_previous_not_joint_purchase
+        previous_bedrooms
+        previous_property_type
+        shared_ownership_previous_tenure
+        value_shared_ownership
+        about_price_shared_ownership_value_check
+        equity
+        shared_ownership_equity_value_check
+        mortgage_used_shared_ownership
+        mortgage_used_mortgage_value_check
+        mortgage_amount_shared_ownership
+        shared_ownership_mortgage_amount_value_check
+        mortgage_amount_mortgage_value_check
+        mortgage_length_shared_ownership
+        deposit_shared_ownership
+        deposit_shared_ownership_optional
+        deposit_joint_purchase_value_check
+        deposit_value_check
+        deposit_discount
+        deposit_discount_optional
+        shared_ownership_deposit_value_check
+        monthly_rent
+        leasehold_charges_shared_ownership
+        monthly_charges_shared_ownership_value_check
+      ],
+    )
+  end
+
+  it "has the correct id" do
+    expect(shared_ownership_initial_purchase.id).to eq("shared_ownership_initial_purchase")
+  end
+
+  it "has the correct label" do
+    expect(shared_ownership_initial_purchase.label).to eq("Shared ownership - initial purchase")
+  end
+
+  it "has the correct depends_on" do
+    expect(shared_ownership_initial_purchase.depends_on).to eq([
+      {
+        "ownershipsch" => 1, "setup_completed?" => true, "staircase" => 2
+      },
+    ])
+  end
+
+  context "when it is a shared ownership scheme and not staircase" do
+    let(:log) { FactoryBot.build(:sales_log, ownershipsch: 1, staircase: 2) }
+
+    it "is displayed in tasklist" do
+      expect(shared_ownership_initial_purchase.displayed_in_tasklist?(log)).to eq(true)
+    end
+  end
+
+  context "when it is not a shared ownership scheme" do
+    let(:log) { FactoryBot.build(:sales_log, ownershipsch: 2, staircase: 2) }
+
+    it "is displayed in tasklist" do
+      expect(shared_ownership_initial_purchase.displayed_in_tasklist?(log)).to eq(false)
+    end
+  end
+
+  context "when it is staircase" do
+    let(:log) { FactoryBot.build(:sales_log, ownershipsch: 1, staircase: 1) }
+
+    it "is displayed in tasklist" do
+      expect(shared_ownership_initial_purchase.displayed_in_tasklist?(log)).to eq(false)
+    end
+  end
+end