diff --git a/app/models/form/lettings/pages/person_2_known.rb b/app/models/form/lettings/pages/person_2_known.rb
deleted file mode 100644
index 413382af4..000000000
--- a/app/models/form/lettings/pages/person_2_known.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-class Form::Lettings::Pages::Person2Known < ::Form::Page
-  def initialize(id, hsh, subsection)
-    super
-    @id = "person_2_known"
-    @header = "You’ve given us the details for 1 person in the household"
-    @depends_on = [{ "hhmemb" => 2 }, { "hhmemb" => 3 }, { "hhmemb" => 4 }, { "hhmemb" => 5 }, { "hhmemb" => 6 }, { "hhmemb" => 7 }, { "hhmemb" => 8 }]
-    @description = ""
-  end
-
-  def questions
-    @questions ||= [Form::Lettings::Questions::DetailsKnown2.new(nil, nil, self)]
-  end
-end
diff --git a/app/models/form/lettings/pages/person_3_known.rb b/app/models/form/lettings/pages/person_3_known.rb
deleted file mode 100644
index 3089f47b6..000000000
--- a/app/models/form/lettings/pages/person_3_known.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-class Form::Lettings::Pages::Person3Known < ::Form::Page
-  def initialize(id, hsh, subsection)
-    super
-    @id = "person_3_known"
-    @header = "You’ve given us the details for 2 people in the household"
-    @depends_on = [{ "hhmemb" => 3 }, { "hhmemb" => 4 }, { "hhmemb" => 5 }, { "hhmemb" => 6 }, { "hhmemb" => 7 }, { "hhmemb" => 8 }]
-    @description = ""
-  end
-
-  def questions
-    @questions ||= [Form::Lettings::Questions::DetailsKnown3.new(nil, nil, self)]
-  end
-end
diff --git a/app/models/form/lettings/pages/person_4_known.rb b/app/models/form/lettings/pages/person_4_known.rb
deleted file mode 100644
index d4929ebbe..000000000
--- a/app/models/form/lettings/pages/person_4_known.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-class Form::Lettings::Pages::Person4Known < ::Form::Page
-  def initialize(id, hsh, subsection)
-    super
-    @id = "person_4_known"
-    @header = "You’ve given us the details for 3 people in the household"
-    @depends_on = [{ "hhmemb" => 4 }, { "hhmemb" => 5 }, { "hhmemb" => 6 }, { "hhmemb" => 7 }, { "hhmemb" => 8 }]
-    @description = ""
-  end
-
-  def questions
-    @questions ||= [Form::Lettings::Questions::DetailsKnown4.new(nil, nil, self)]
-  end
-end
diff --git a/app/models/form/lettings/pages/person_5_known.rb b/app/models/form/lettings/pages/person_5_known.rb
deleted file mode 100644
index 69bcc7b8b..000000000
--- a/app/models/form/lettings/pages/person_5_known.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-class Form::Lettings::Pages::Person5Known < ::Form::Page
-  def initialize(id, hsh, subsection)
-    super
-    @id = "person_5_known"
-    @header = "You’ve given us the details for 4 people in the household"
-    @depends_on = [{ "hhmemb" => 5 }, { "hhmemb" => 6 }, { "hhmemb" => 7 }, { "hhmemb" => 8 }]
-    @description = ""
-  end
-
-  def questions
-    @questions ||= [Form::Lettings::Questions::DetailsKnown5.new(nil, nil, self)]
-  end
-end
diff --git a/app/models/form/lettings/pages/person_6_known.rb b/app/models/form/lettings/pages/person_6_known.rb
deleted file mode 100644
index 84c489f43..000000000
--- a/app/models/form/lettings/pages/person_6_known.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-class Form::Lettings::Pages::Person6Known < ::Form::Page
-  def initialize(id, hsh, subsection)
-    super
-    @id = "person_6_known"
-    @header = "You’ve given us the details for 5 people in the household"
-    @depends_on = [{ "hhmemb" => 6 }, { "hhmemb" => 7 }, { "hhmemb" => 8 }]
-    @description = ""
-  end
-
-  def questions
-    @questions ||= [Form::Lettings::Questions::DetailsKnown6.new(nil, nil, self)]
-  end
-end
diff --git a/app/models/form/lettings/pages/person_7_known.rb b/app/models/form/lettings/pages/person_7_known.rb
deleted file mode 100644
index f1f63b947..000000000
--- a/app/models/form/lettings/pages/person_7_known.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-class Form::Lettings::Pages::Person7Known < ::Form::Page
-  def initialize(id, hsh, subsection)
-    super
-    @id = "person_7_known"
-    @header = "You’ve given us the details for 6 people in the household"
-    @depends_on = [{ "hhmemb" => 7 }, { "hhmemb" => 8 }]
-    @description = ""
-  end
-
-  def questions
-    @questions ||= [Form::Lettings::Questions::DetailsKnown7.new(nil, nil, self)]
-  end
-end
diff --git a/app/models/form/lettings/pages/person_8_known.rb b/app/models/form/lettings/pages/person_8_known.rb
deleted file mode 100644
index 1a31970ad..000000000
--- a/app/models/form/lettings/pages/person_8_known.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-class Form::Lettings::Pages::Person8Known < ::Form::Page
-  def initialize(id, hsh, subsection)
-    super
-    @id = "person_8_known"
-    @header = "You’ve given us the details for 7 people in the household"
-    @depends_on = [{ "hhmemb" => 8 }]
-    @description = ""
-  end
-
-  def questions
-    @questions ||= [Form::Lettings::Questions::DetailsKnown8.new(nil, nil, self)]
-  end
-end
diff --git a/app/models/form/lettings/pages/person_known.rb b/app/models/form/lettings/pages/person_known.rb
new file mode 100644
index 000000000..c27a520c4
--- /dev/null
+++ b/app/models/form/lettings/pages/person_known.rb
@@ -0,0 +1,14 @@
+class Form::Lettings::Pages::PersonKnown < ::Form::Page
+  def initialize(id, hsh, subsection, person_index:)
+    super(id, hsh, subsection)
+    @id = "person_#{person_index}_known"
+    @header = "You’ve given us the details for #{person_index - 1} person in the household"
+    @depends_on = (person_index..8).map { |index| { "hhmemb" => index } }
+    @description = ""
+    @person_index = person_index
+  end
+
+  def questions
+    @questions ||= [Form::Lettings::Questions::DetailsKnown.new(nil, nil, self, person_index: @person_index)]
+  end
+end
diff --git a/app/models/form/lettings/questions/details_known.rb b/app/models/form/lettings/questions/details_known.rb
new file mode 100644
index 000000000..f2850b65e
--- /dev/null
+++ b/app/models/form/lettings/questions/details_known.rb
@@ -0,0 +1,14 @@
+class Form::Lettings::Questions::DetailsKnown < ::Form::Question
+  def initialize(id, hsh, page, person_index:)
+    super(id, hsh, page)
+    @id = "details_known_#{person_index}"
+    @check_answer_label = "Details known for person #{person_index}"
+    @header = "Do you know details for person #{person_index}?"
+    @type = "radio"
+    @check_answers_card_number = person_index
+    @hint_text = "You must provide details for everyone in the household if you know them."
+    @answer_options = ANSWER_OPTIONS
+  end
+
+  ANSWER_OPTIONS = { "0" => { "value" => "Yes" }, "1" => { "value" => "No" } }.freeze
+end
diff --git a/app/models/form/lettings/questions/details_known_2.rb b/app/models/form/lettings/questions/details_known_2.rb
deleted file mode 100644
index 215a4c7b8..000000000
--- a/app/models/form/lettings/questions/details_known_2.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-class Form::Lettings::Questions::DetailsKnown2 < ::Form::Question
-  def initialize(id, hsh, page)
-    super
-    @id = "details_known_2"
-    @check_answer_label = "Details known for person 2"
-    @header = "Do you know details for person 2?"
-    @type = "radio"
-    @check_answers_card_number = 2
-    @hint_text = "You must provide details for everyone in the household if you know them."
-    @answer_options = ANSWER_OPTIONS
-  end
-
-  ANSWER_OPTIONS = { "0" => { "value" => "Yes" }, "1" => { "value" => "No" } }.freeze
-end
diff --git a/app/models/form/lettings/questions/details_known_3.rb b/app/models/form/lettings/questions/details_known_3.rb
deleted file mode 100644
index 6a5aa31a5..000000000
--- a/app/models/form/lettings/questions/details_known_3.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-class Form::Lettings::Questions::DetailsKnown3 < ::Form::Question
-  def initialize(id, hsh, page)
-    super
-    @id = "details_known_3"
-    @check_answer_label = "Details known for person 3"
-    @header = "Do you know details for person 3?"
-    @type = "radio"
-    @check_answers_card_number = 3
-    @hint_text = "You must provide details for everyone in the household if you know them."
-    @answer_options = ANSWER_OPTIONS
-  end
-
-  ANSWER_OPTIONS = { "0" => { "value" => "Yes" }, "1" => { "value" => "No" } }.freeze
-end
diff --git a/app/models/form/lettings/questions/details_known_4.rb b/app/models/form/lettings/questions/details_known_4.rb
deleted file mode 100644
index df64264a2..000000000
--- a/app/models/form/lettings/questions/details_known_4.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-class Form::Lettings::Questions::DetailsKnown4 < ::Form::Question
-  def initialize(id, hsh, page)
-    super
-    @id = "details_known_4"
-    @check_answer_label = "Details known for person 4"
-    @header = "Do you know details for person 4?"
-    @type = "radio"
-    @check_answers_card_number = 4
-    @hint_text = "You must provide details for everyone in the household if you know them."
-    @answer_options = ANSWER_OPTIONS
-  end
-
-  ANSWER_OPTIONS = { "0" => { "value" => "Yes" }, "1" => { "value" => "No" } }.freeze
-end
diff --git a/app/models/form/lettings/questions/details_known_5.rb b/app/models/form/lettings/questions/details_known_5.rb
deleted file mode 100644
index fbca6764d..000000000
--- a/app/models/form/lettings/questions/details_known_5.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-class Form::Lettings::Questions::DetailsKnown5 < ::Form::Question
-  def initialize(id, hsh, page)
-    super
-    @id = "details_known_5"
-    @check_answer_label = "Details known for person 5"
-    @header = "Do you know details for person 5?"
-    @type = "radio"
-    @check_answers_card_number = 5
-    @hint_text = "You must provide details for everyone in the household if you know them."
-    @answer_options = ANSWER_OPTIONS
-  end
-
-  ANSWER_OPTIONS = { "0" => { "value" => "Yes" }, "1" => { "value" => "No" } }.freeze
-end
diff --git a/app/models/form/lettings/questions/details_known_6.rb b/app/models/form/lettings/questions/details_known_6.rb
deleted file mode 100644
index c26d256e0..000000000
--- a/app/models/form/lettings/questions/details_known_6.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-class Form::Lettings::Questions::DetailsKnown6 < ::Form::Question
-  def initialize(id, hsh, page)
-    super
-    @id = "details_known_6"
-    @check_answer_label = "Details known for person 6"
-    @header = "Do you know details for person 6?"
-    @type = "radio"
-    @check_answers_card_number = 6
-    @hint_text = "You must provide details for everyone in the household if you know them."
-    @answer_options = ANSWER_OPTIONS
-  end
-
-  ANSWER_OPTIONS = { "0" => { "value" => "Yes" }, "1" => { "value" => "No" } }.freeze
-end
diff --git a/app/models/form/lettings/questions/details_known_7.rb b/app/models/form/lettings/questions/details_known_7.rb
deleted file mode 100644
index ecfe23180..000000000
--- a/app/models/form/lettings/questions/details_known_7.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-class Form::Lettings::Questions::DetailsKnown7 < ::Form::Question
-  def initialize(id, hsh, page)
-    super
-    @id = "details_known_7"
-    @check_answer_label = "Details known for person 7"
-    @header = "Do you know details for person 7?"
-    @type = "radio"
-    @check_answers_card_number = 7
-    @hint_text = "You must provide details for everyone in the household if you know them."
-    @answer_options = ANSWER_OPTIONS
-  end
-
-  ANSWER_OPTIONS = { "0" => { "value" => "Yes" }, "1" => { "value" => "No" } }.freeze
-end
diff --git a/app/models/form/lettings/questions/details_known_8.rb b/app/models/form/lettings/questions/details_known_8.rb
deleted file mode 100644
index c7220bc8b..000000000
--- a/app/models/form/lettings/questions/details_known_8.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-class Form::Lettings::Questions::DetailsKnown8 < ::Form::Question
-  def initialize(id, hsh, page)
-    super
-    @id = "details_known_8"
-    @check_answer_label = "Details known for person 8"
-    @header = "Do you know details for person 8?"
-    @type = "radio"
-    @check_answers_card_number = 8
-    @hint_text = "You must provide details for everyone in the household if you know them."
-    @answer_options = ANSWER_OPTIONS
-  end
-
-  ANSWER_OPTIONS = { "0" => { "value" => "Yes" }, "1" => { "value" => "No" } }.freeze
-end
diff --git a/app/models/form/lettings/subsections/household_characteristics.rb b/app/models/form/lettings/subsections/household_characteristics.rb
index d81a4a11a..32ed1303f 100644
--- a/app/models/form/lettings/subsections/household_characteristics.rb
+++ b/app/models/form/lettings/subsections/household_characteristics.rb
@@ -27,7 +27,7 @@ class Form::Lettings::Subsections::HouseholdCharacteristics < ::Form::Subsection
                 Form::Lettings::Pages::LeadTenantWorkingSituation.new(nil, nil, self),
                 Form::Lettings::Pages::LeadTenantUnderRetirementValueCheck.new(nil, nil, self),
                 Form::Lettings::Pages::LeadTenantOverRetirementValueCheck.new(nil, nil, self),
-                Form::Lettings::Pages::Person2Known.new(nil, nil, self),
+                Form::Lettings::Pages::PersonKnown.new(nil, nil, self, person_index: 2),
                 Form::Lettings::Pages::Person2RelationshipToLead.new(nil, nil, self),
                 Form::Lettings::Pages::PersonAge.new(nil, nil, self, person_index: 2),
                 Form::Lettings::Pages::NoFemalesPregnantHouseholdPerson2AgeValueCheck.new(nil, nil, self),
@@ -38,7 +38,7 @@ class Form::Lettings::Subsections::HouseholdCharacteristics < ::Form::Subsection
                 Form::Lettings::Pages::Person2WorkingSituation.new(nil, nil, self),
                 Form::Lettings::Pages::Person2UnderRetirementValueCheck.new(nil, nil, self),
                 Form::Lettings::Pages::Person2OverRetirementValueCheck.new(nil, nil, self),
-                Form::Lettings::Pages::Person3Known.new(nil, nil, self),
+                Form::Lettings::Pages::PersonKnown.new(nil, nil, self, person_index: 3),
                 Form::Lettings::Pages::Person3RelationshipToLead.new(nil, nil, self),
                 Form::Lettings::Pages::PersonAge.new(nil, nil, self, person_index: 3),
                 Form::Lettings::Pages::NoFemalesPregnantHouseholdPerson3AgeValueCheck.new(nil, nil, self),
@@ -49,7 +49,7 @@ class Form::Lettings::Subsections::HouseholdCharacteristics < ::Form::Subsection
                 Form::Lettings::Pages::Person3WorkingSituation.new(nil, nil, self),
                 Form::Lettings::Pages::Person3UnderRetirementValueCheck.new(nil, nil, self),
                 Form::Lettings::Pages::Person3OverRetirementValueCheck.new(nil, nil, self),
-                Form::Lettings::Pages::Person4Known.new(nil, nil, self),
+                Form::Lettings::Pages::PersonKnown.new(nil, nil, self, person_index: 4),
                 Form::Lettings::Pages::Person4RelationshipToLead.new(nil, nil, self),
                 Form::Lettings::Pages::PersonAge.new(nil, nil, self, person_index: 4),
                 Form::Lettings::Pages::NoFemalesPregnantHouseholdPerson4AgeValueCheck.new(nil, nil, self),
@@ -60,7 +60,7 @@ class Form::Lettings::Subsections::HouseholdCharacteristics < ::Form::Subsection
                 Form::Lettings::Pages::Person4WorkingSituation.new(nil, nil, self),
                 Form::Lettings::Pages::Person4UnderRetirementValueCheck.new(nil, nil, self),
                 Form::Lettings::Pages::Person4OverRetirementValueCheck.new(nil, nil, self),
-                Form::Lettings::Pages::Person5Known.new(nil, nil, self),
+                Form::Lettings::Pages::PersonKnown.new(nil, nil, self, person_index: 5),
                 Form::Lettings::Pages::Person5RelationshipToLead.new(nil, nil, self),
                 Form::Lettings::Pages::PersonAge.new(nil, nil, self, person_index: 5),
                 Form::Lettings::Pages::NoFemalesPregnantHouseholdPerson5AgeValueCheck.new(nil, nil, self),
@@ -71,7 +71,7 @@ class Form::Lettings::Subsections::HouseholdCharacteristics < ::Form::Subsection
                 Form::Lettings::Pages::Person5WorkingSituation.new(nil, nil, self),
                 Form::Lettings::Pages::Person5UnderRetirementValueCheck.new(nil, nil, self),
                 Form::Lettings::Pages::Person5OverRetirementValueCheck.new(nil, nil, self),
-                Form::Lettings::Pages::Person6Known.new(nil, nil, self),
+                Form::Lettings::Pages::PersonKnown.new(nil, nil, self, person_index: 6),
                 Form::Lettings::Pages::Person6RelationshipToLead.new(nil, nil, self),
                 Form::Lettings::Pages::PersonAge.new(nil, nil, self, person_index: 6),
                 Form::Lettings::Pages::NoFemalesPregnantHouseholdPerson6AgeValueCheck.new(nil, nil, self),
@@ -82,7 +82,7 @@ class Form::Lettings::Subsections::HouseholdCharacteristics < ::Form::Subsection
                 Form::Lettings::Pages::Person6WorkingSituation.new(nil, nil, self),
                 Form::Lettings::Pages::Person6UnderRetirementValueCheck.new(nil, nil, self),
                 Form::Lettings::Pages::Person6OverRetirementValueCheck.new(nil, nil, self),
-                Form::Lettings::Pages::Person7Known.new(nil, nil, self),
+                Form::Lettings::Pages::PersonKnown.new(nil, nil, self, person_index: 7),
                 Form::Lettings::Pages::Person7RelationshipToLead.new(nil, nil, self),
                 Form::Lettings::Pages::PersonAge.new(nil, nil, self, person_index: 7),
                 Form::Lettings::Pages::NoFemalesPregnantHouseholdPerson7AgeValueCheck.new(nil, nil, self),
@@ -93,7 +93,7 @@ class Form::Lettings::Subsections::HouseholdCharacteristics < ::Form::Subsection
                 Form::Lettings::Pages::Person7WorkingSituation.new(nil, nil, self),
                 Form::Lettings::Pages::Person7UnderRetirementValueCheck.new(nil, nil, self),
                 Form::Lettings::Pages::Person7OverRetirementValueCheck.new(nil, nil, self),
-                Form::Lettings::Pages::Person8Known.new(nil, nil, self),
+                Form::Lettings::Pages::PersonKnown.new(nil, nil, self, person_index: 8),
                 Form::Lettings::Pages::Person8RelationshipToLead.new(nil, nil, self),
                 Form::Lettings::Pages::PersonAge.new(nil, nil, self, person_index: 8),
                 Form::Lettings::Pages::NoFemalesPregnantHouseholdPerson8AgeValueCheck.new(nil, nil, self),
diff --git a/spec/models/form/lettings/pages/person_known_spec.rb b/spec/models/form/lettings/pages/person_known_spec.rb
new file mode 100644
index 000000000..dc26c5ee4
--- /dev/null
+++ b/spec/models/form/lettings/pages/person_known_spec.rb
@@ -0,0 +1,66 @@
+require "rails_helper"
+
+RSpec.describe Form::Lettings::Pages::PersonKnown, type: :model do
+  subject(:page) { described_class.new(nil, page_definition, subsection, person_index:) }
+
+  let(:page_definition) { nil }
+  let(:subsection) { instance_double(Form::Subsection) }
+  let(:person_index) { 2 }
+
+  it "has correct subsection" do
+    expect(page.subsection).to eq(subsection)
+  end
+
+  it "has the correct header" do
+    expect(page.header).to eq("You’ve given us the details for 1 person in the household")
+  end
+
+  it "has the correct description" do
+    expect(page.description).to eq("")
+  end
+
+  context "with person 2" do
+    it "has correct questions" do
+      expect(page.questions.map(&:id)).to eq(%w[details_known_2])
+    end
+
+    it "has the correct id" do
+      expect(page.id).to eq("person_2_known")
+    end
+
+    it "has correct depends_on" do
+      expect(page.depends_on).to eq(
+        [{ "hhmemb" => 2 },
+         { "hhmemb" => 3 },
+         { "hhmemb" => 4 },
+         { "hhmemb" => 5 },
+         { "hhmemb" => 6 },
+         { "hhmemb" => 7 },
+         { "hhmemb" => 8 }],
+      )
+    end
+  end
+
+  context "with person 3" do
+    let(:person_index) { 3 }
+
+    it "has correct questions" do
+      expect(page.questions.map(&:id)).to eq(%w[details_known_3])
+    end
+
+    it "has the correct id" do
+      expect(page.id).to eq("person_3_known")
+    end
+
+    it "has correct depends_on" do
+      expect(page.depends_on).to eq(
+        [{ "hhmemb" => 3 },
+         { "hhmemb" => 4 },
+         { "hhmemb" => 5 },
+         { "hhmemb" => 6 },
+         { "hhmemb" => 7 },
+         { "hhmemb" => 8 }],
+      )
+    end
+  end
+end
diff --git a/spec/models/form/lettings/questions/details_known_spec.rb b/spec/models/form/lettings/questions/details_known_spec.rb
new file mode 100644
index 000000000..799b307b0
--- /dev/null
+++ b/spec/models/form/lettings/questions/details_known_spec.rb
@@ -0,0 +1,63 @@
+require "rails_helper"
+
+RSpec.describe Form::Lettings::Questions::DetailsKnown, type: :model do
+  subject(:question) { described_class.new(nil, question_definition, page, person_index:) }
+
+  let(:question_definition) { nil }
+  let(:page) { instance_double(Form::Page) }
+  let(:person_index) { 2 }
+
+  it "has correct page" do
+    expect(question.page).to eq(page)
+  end
+
+  it "has the correct type" do
+    expect(question.type).to eq("radio")
+  end
+
+  it "is not marked as derived" do
+    expect(question.derived?).to be false
+  end
+
+  it "has the correct hint" do
+    expect(question.hint_text).to eq("You must provide details for everyone in the household if you know them.")
+  end
+
+  context "with person 2" do
+    it "has the correct id" do
+      expect(question.id).to eq("details_known_2")
+    end
+
+    it "has the correct check_answer_label" do
+      expect(question.check_answer_label).to eq("Details known for person 2")
+    end
+
+    it "has the correct header" do
+      expect(question.header).to eq("Do you know details for person 2?")
+    end
+
+    it "has the correct check_answers_card_number" do
+      expect(question.check_answers_card_number).to eq(2)
+    end
+  end
+
+  context "with person 3" do
+    let(:person_index) { 3 }
+
+    it "has the correct id" do
+      expect(question.id).to eq("details_known_3")
+    end
+
+    it "has the correct check_answer_label" do
+      expect(question.check_answer_label).to eq("Details known for person 3")
+    end
+
+    it "has the correct header" do
+      expect(question.header).to eq("Do you know details for person 3?")
+    end
+
+    it "has the correct check_answers_card_number" do
+      expect(question.check_answers_card_number).to eq(3)
+    end
+  end
+end