diff --git a/app/controllers/experts/avis_controller.rb b/app/controllers/experts/avis_controller.rb
index 35ff9c99d..108cc377f 100644
--- a/app/controllers/experts/avis_controller.rb
+++ b/app/controllers/experts/avis_controller.rb
@@ -60,9 +60,17 @@ module Experts
     end
 
     def update
+      updated_recently = @avis.updated_recently?
       if @avis.update(avis_params)
         flash.notice = 'Votre réponse est enregistrée.'
         @avis.dossier.update!(last_avis_updated_at: Time.zone.now)
+        if !updated_recently
+          @avis.dossier.followers_instructeurs
+            .with_instant_expert_avis_email_notifications_enabled
+            .each do |instructeur|
+            DossierMailer.notify_new_avis_to_instructeur(@avis, instructeur.email).deliver_later
+          end
+        end
         redirect_to instruction_expert_avis_path(@avis.procedure, @avis)
       else
         flash.now.alert = @avis.errors.full_messages
diff --git a/app/controllers/instructeurs/procedures_controller.rb b/app/controllers/instructeurs/procedures_controller.rb
index 0fdfdfa58..8f26f35ff 100644
--- a/app/controllers/instructeurs/procedures_controller.rb
+++ b/app/controllers/instructeurs/procedures_controller.rb
@@ -261,7 +261,7 @@ module Instructeurs
 
     def assign_to_params
       params.require(:assign_to)
-        .permit(:instant_email_dossier_notifications_enabled, :instant_email_message_notifications_enabled, :daily_email_notifications_enabled, :weekly_email_notifications_enabled)
+        .permit(:instant_expert_avis_email_notifications_enabled, :instant_email_dossier_notifications_enabled, :instant_email_message_notifications_enabled, :daily_email_notifications_enabled, :weekly_email_notifications_enabled)
     end
 
     def assign_exports
diff --git a/app/mailers/dossier_mailer.rb b/app/mailers/dossier_mailer.rb
index 645bb559e..36f0e56f3 100644
--- a/app/mailers/dossier_mailer.rb
+++ b/app/mailers/dossier_mailer.rb
@@ -46,6 +46,15 @@ class DossierMailer < ApplicationMailer
     end
   end
 
+  def notify_new_avis_to_instructeur(avis, instructeur_email)
+    I18n.with_locale(avis.dossier.user_locale) do
+      @avis = avis
+      @subject = default_i18n_subject(dossier_id: avis.dossier.id, libelle_demarche: avis.procedure.libelle)
+
+      mail(to: instructeur_email, subject: @subject)
+    end
+  end
+
   def notify_new_dossier_depose_to_instructeur(dossier, instructeur_email)
     I18n.with_locale(dossier.user_locale) do
       @dossier = dossier
diff --git a/app/models/assign_to.rb b/app/models/assign_to.rb
index d457f766e..8febd4b3c 100644
--- a/app/models/assign_to.rb
+++ b/app/models/assign_to.rb
@@ -2,16 +2,17 @@
 #
 # Table name: assign_tos
 #
-#  id                                          :integer          not null, primary key
-#  daily_email_notifications_enabled           :boolean          default(FALSE), not null
-#  instant_email_dossier_notifications_enabled :boolean          default(FALSE), not null
-#  instant_email_message_notifications_enabled :boolean          default(FALSE), not null
-#  manager                                     :boolean          default(FALSE)
-#  weekly_email_notifications_enabled          :boolean          default(TRUE), not null
-#  created_at                                  :datetime
-#  updated_at                                  :datetime
-#  groupe_instructeur_id                       :bigint
-#  instructeur_id                              :integer
+#  id                                              :integer          not null, primary key
+#  daily_email_notifications_enabled               :boolean          default(FALSE), not null
+#  instant_email_dossier_notifications_enabled     :boolean          default(FALSE), not null
+#  instant_email_message_notifications_enabled     :boolean          default(FALSE), not null
+#  instant_expert_avis_email_notifications_enabled :boolean          default(FALSE), not null
+#  manager                                         :boolean          default(FALSE)
+#  weekly_email_notifications_enabled              :boolean          default(TRUE), not null
+#  created_at                                      :datetime
+#  updated_at                                      :datetime
+#  groupe_instructeur_id                           :bigint
+#  instructeur_id                                  :integer
 #
 class AssignTo < ApplicationRecord
   belongs_to :instructeur, optional: false
diff --git a/app/models/avis.rb b/app/models/avis.rb
index 183f52c73..4a49adb0e 100644
--- a/app/models/avis.rb
+++ b/app/models/avis.rb
@@ -74,6 +74,10 @@ class Avis < ApplicationRecord
     ]
   end
 
+  def updated_recently?
+    updated_at > 30.minutes.ago
+  end
+
   def revoked?
     revoked_at.present?
   end
diff --git a/app/models/instructeur.rb b/app/models/instructeur.rb
index 70930a4c9..21ab826fb 100644
--- a/app/models/instructeur.rb
+++ b/app/models/instructeur.rb
@@ -41,6 +41,10 @@ class Instructeur < ApplicationRecord
     includes(:assign_to).where(assign_tos: { instant_email_dossier_notifications_enabled: true })
   }
 
+  scope :with_instant_expert_avis_email_notifications_enabled, -> {
+    includes(:assign_to).where(assign_tos: { instant_expert_avis_email_notifications_enabled: true })
+  }
+
   default_scope { eager_load(:user) }
 
   def self.by_email(email)
@@ -81,7 +85,7 @@ class Instructeur < ApplicationRecord
     end
   end
 
-  NOTIFICATION_SETTINGS = [:daily_email_notifications_enabled, :instant_email_dossier_notifications_enabled, :instant_email_message_notifications_enabled, :weekly_email_notifications_enabled]
+  NOTIFICATION_SETTINGS = [:daily_email_notifications_enabled, :instant_email_dossier_notifications_enabled, :instant_email_message_notifications_enabled, :weekly_email_notifications_enabled, :instant_expert_avis_email_notifications_enabled]
 
   def notification_settings(procedure_id)
     assign_to
diff --git a/app/views/dossier_mailer/notify_new_avis_to_instructeur.html.haml b/app/views/dossier_mailer/notify_new_avis_to_instructeur.html.haml
new file mode 100644
index 000000000..2c04917c1
--- /dev/null
+++ b/app/views/dossier_mailer/notify_new_avis_to_instructeur.html.haml
@@ -0,0 +1,9 @@
+- content_for(:title, "#{@subject}")
+
+%p= t(:hello, scope: [:views, :shared, :greetings])
+
+%p
+  = t('.body', dossier_id: @avis.dossier.id, libelle_demarche: @avis.dossier.procedure.libelle)
+%p= link_to("Voir le dossier n°#{@avis.dossier.id}", instructeur_dossier_url(@avis.procedure, @avis.dossier))
+
+= render partial: "layouts/mailers/signature"
diff --git a/app/views/instructeurs/procedures/email_notifications.html.haml b/app/views/instructeurs/procedures/email_notifications.html.haml
index eda53e02d..54f44534f 100644
--- a/app/views/instructeurs/procedures/email_notifications.html.haml
+++ b/app/views/instructeurs/procedures/email_notifications.html.haml
@@ -74,6 +74,20 @@
         = form.radio_button :weekly_email_notifications_enabled, false
         = t('.utils.negative')
 
+    = form.label :email_notification, t('.avis_notifications.title')
+    %p.notice
+      = t('.avis_notifications.notice_1')
+    %p.notice
+      = t('.avis_notifications.notice_2')
+
+    .radios
+      %label
+        = form.radio_button :instant_expert_avis_email_notifications_enabled, true
+        = t('.utils.positive')
+      %label
+        = form.radio_button :instant_expert_avis_email_notifications_enabled, false
+        = t('.utils.negative')
+
     .send-wrapper
       = link_to t('.buttons.back_to_procedure'), instructeur_procedure_path(@procedure), class: 'button mr-1'
       = form.submit t('.buttons.save'), class: "button primary"
diff --git a/config/locales/views/dossier_mailer/notify_new_avis_to_instructeur/fr.yml b/config/locales/views/dossier_mailer/notify_new_avis_to_instructeur/fr.yml
new file mode 100644
index 000000000..df076042b
--- /dev/null
+++ b/config/locales/views/dossier_mailer/notify_new_avis_to_instructeur/fr.yml
@@ -0,0 +1,5 @@
+fr:
+  dossier_mailer:
+    notify_new_avis_to_instructeur:
+      subject: Nouvel avis déposé sur le dossier n°%{dossier_id}
+      body: Un nouvel a été déposé par un expert sur le dossier n° %{dossier_id} de la démarche %{libelle_demarche}.
diff --git a/config/locales/views/instructeurs/procedures/email_notifications/fr.yml b/config/locales/views/instructeurs/procedures/email_notifications/fr.yml
index e2b5b1277..6568b73de 100644
--- a/config/locales/views/instructeurs/procedures/email_notifications/fr.yml
+++ b/config/locales/views/instructeurs/procedures/email_notifications/fr.yml
@@ -23,6 +23,10 @@ fr:
           title: Recevoir un récapitulatif hebdomadaire
           notice_1: Cet email récapitule l’activité de la semaine sur l’ensemble de vos démarches.
           notice_2: Il est envoyé chaque semaine le lundi matin.
+        avis_notifications:
+          title: Recevoir une notification pour chaque avis rendu par un expert
+          notice_1: Cet email vous signale un nouvel avis posté par un expert que vous avez sollicité sur un dossier.
+          notice_2: Il est envoyé à chaque fois qu'un expert rend un avis.
         buttons:
           back_to_procedure: Revenir à la procédure
           save: Enregistrer
diff --git a/db/migrate/20220830125703_add_avis_email_notification.rb b/db/migrate/20220830125703_add_avis_email_notification.rb
new file mode 100644
index 000000000..9bf4e9a16
--- /dev/null
+++ b/db/migrate/20220830125703_add_avis_email_notification.rb
@@ -0,0 +1,5 @@
+class AddAvisEmailNotification < ActiveRecord::Migration[6.1]
+  def change
+    add_column :assign_tos, :instant_expert_avis_email_notifications_enabled, :boolean, default: false, null: false
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 7157e7fe5..31a4c228b 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2022_07_28_084804) do
+ActiveRecord::Schema.define(version: 2022_08_30_125703) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "pgcrypto"
@@ -111,6 +111,7 @@ ActiveRecord::Schema.define(version: 2022_07_28_084804) do
     t.bigint "groupe_instructeur_id"
     t.boolean "instant_email_dossier_notifications_enabled", default: false, null: false
     t.boolean "instant_email_message_notifications_enabled", default: false, null: false
+    t.boolean "instant_expert_avis_email_notifications_enabled", default: false, null: false
     t.integer "instructeur_id"
     t.boolean "manager", default: false
     t.datetime "updated_at"
diff --git a/spec/controllers/experts/avis_controller_spec.rb b/spec/controllers/experts/avis_controller_spec.rb
index 655d21b63..8c492e4d0 100644
--- a/spec/controllers/experts/avis_controller_spec.rb
+++ b/spec/controllers/experts/avis_controller_spec.rb
@@ -4,10 +4,11 @@ describe Experts::AvisController, type: :controller do
 
     let(:now) { Time.zone.parse('01/02/2345') }
     let(:instructeur) { create(:instructeur) }
+    let!(:instructeur_with_instant_avis_notification) { create(:instructeur) }
     let(:another_instructeur) { create(:instructeur) }
     let(:claimant) { create(:expert) }
     let(:expert) { create(:expert) }
-    let(:procedure) { create(:procedure, :published, instructeurs: [instructeur, another_instructeur]) }
+    let(:procedure) { create(:procedure, :published, instructeurs: [instructeur, another_instructeur, instructeur_with_instant_avis_notification]) }
     let(:another_procedure) { create(:procedure, :published, instructeurs: [instructeur]) }
     let(:dossier) { create(:dossier, :en_construction, procedure: procedure) }
     let(:experts_procedure) { create(:experts_procedure, expert: expert, procedure: procedure) }
@@ -155,6 +156,38 @@ describe Experts::AvisController, type: :controller do
         end
       end
 
+      context 'without attachment with an instructeur wants to be notified' do
+        before do
+          allow(DossierMailer).to receive(:notify_new_avis_to_instructeur).and_return(double(deliver_later: nil))
+          AssignTo.find_by(instructeur: instructeur_with_instant_avis_notification).update!(instant_expert_avis_email_notifications_enabled: true)
+          Timecop.freeze(now)
+          instructeur_with_instant_avis_notification.follow(avis_without_answer.dossier)
+          patch :update, params: { id: avis_without_answer.id, procedure_id: procedure.id, avis: { answer: 'answer' } }
+          avis_without_answer.reload
+        end
+        after { Timecop.return }
+
+        it 'The instructeur should be notified of the new avis' do
+          expect(DossierMailer).to have_received(:notify_new_avis_to_instructeur).once.with(avis_without_answer, instructeur_with_instant_avis_notification.email)
+        end
+      end
+
+      context 'without attachment with an instructeur wants to be notified' do
+        before do
+          allow(DossierMailer).to receive(:notify_new_avis_to_instructeur).and_return(double(deliver_later: nil))
+          AssignTo.find_by(instructeur: instructeur_with_instant_avis_notification).update!(instant_expert_avis_email_notifications_enabled: true)
+          Timecop.freeze(now)
+          instructeur_with_instant_avis_notification.follow(avis_without_answer.dossier)
+          patch :update, params: { id: avis_without_answer.id, procedure_id: procedure.id, avis: { answer: 'answer' } }
+          avis_without_answer.reload
+        end
+        after { Timecop.return }
+
+        it 'The instructeur should be notified of the new avis' do
+          expect(DossierMailer).to have_received(:notify_new_avis_to_instructeur).once.with(avis_without_answer, instructeur_with_instant_avis_notification.email)
+        end
+      end
+
       context 'with attachment' do
         include ActiveJob::TestHelper
         let(:file) { fixture_file_upload('spec/fixtures/files/piece_justificative_0.pdf', 'application/pdf') }