diff --git a/modules/bim/app/controllers/bim/ifc_models/ifc_models_controller.rb b/modules/bim/app/controllers/bim/ifc_models/ifc_models_controller.rb
index 6c64972e7752..00c6bdcca400 100644
--- a/modules/bim/app/controllers/bim/ifc_models/ifc_models_controller.rb
+++ b/modules/bim/app/controllers/bim/ifc_models/ifc_models_controller.rb
@@ -65,6 +65,13 @@ def defaults
       end
 
       def set_direct_upload_file_name
+        if params[:filesize].to_i > Setting.attachment_max_size.to_i.kilobytes
+          render json: { error: I18n.t("activerecord.errors.messages.file_too_large",
+                                       count: Setting.attachment_max_size.to_i.kilobytes) },
+                 status: :unprocessable_entity
+          return
+        end
+
         session[:pending_ifc_model_title] = params[:title]
         session[:pending_ifc_model_is_default] = params[:isDefault]
       end
diff --git a/modules/bim/app/views/bim/ifc_models/ifc_models/_form.html.erb b/modules/bim/app/views/bim/ifc_models/ifc_models/_form.html.erb
index 62d8e3464db2..20ee195c3837 100644
--- a/modules/bim/app/views/bim/ifc_models/ifc_models/_form.html.erb
+++ b/modules/bim/app/views/bim/ifc_models/ifc_models/_form.html.erb
@@ -62,6 +62,10 @@ See COPYRIGHT and LICENSE files for more details.
         fileName = fileNameField[0].files[0].name;
       }
 
+      <%# Reset the form validity %>
+      <%# See: https://developer.mozilla.org/en-US/docs/Web/API/HTMLObjectElement/setCustomValidity %>
+      fileNameField[0].setCustomValidity('');
+
       var titleField = jQuery("#bim_ifc_models_ifc_model_title");
 
       <%# When creating a new model, there is no titleField. %>
@@ -86,12 +90,20 @@ See COPYRIGHT and LICENSE files for more details.
         },
         data: {
           title: title,
-          isDefault: jQuery("#bim_ifc_models_ifc_model_is_default").is(":checked") ? 1 : 0
+          isDefault: jQuery("#bim_ifc_models_ifc_model_is_default").is(":checked") ? 1 : 0,
+          filesize: fileNameField[0].files[0].size
         },
         statusCode: {
           401: function(resp, status, error) {
             document.location.reload(); // reload to make user login again
           }
+        },
+        error: function(jqXHR, ajaxOptions, errorThrown) {
+          if (jqXHR.status == 422) {
+            var errorMessage = jqXHR.responseJSON.error;
+            fileNameField[0].setCustomValidity(errorMessage);
+            fileNameField[0].reportValidity();
+          }
         }
       });
     };
diff --git a/modules/bim/spec/features/ifc_models/direct_ifc_upload_spec.rb b/modules/bim/spec/features/ifc_models/direct_ifc_upload_spec.rb
index f6e7a9c0be22..6058222ffa85 100644
--- a/modules/bim/spec/features/ifc_models/direct_ifc_upload_spec.rb
+++ b/modules/bim/spec/features/ifc_models/direct_ifc_upload_spec.rb
@@ -33,5 +33,23 @@
   it_behaves_like "can upload an IFC file" do
     # with direct upload, we don't get the model name
     let(:model_name) { "model.ifc" }
+
+    context "when the file size exceeds the allowed maximum", with_settings: { attachment_max_size: 1 } do
+      it "invalidates the form via JavaScript preventing submission" do
+        pending "This test is currently flaky due to an unknown reason"
+
+        visit new_bcf_project_ifc_model_path(project_id: project.identifier)
+
+        page.attach_file("file", ifc_fixture.path, visible: :all)
+
+        form_validity = page.evaluate_script <<~JS
+          document
+            .querySelector('#new_bim_ifc_models_ifc_model')
+            .checkValidity();
+        JS
+
+        expect(form_validity).to be(false)
+      end
+    end
   end
 end
diff --git a/modules/bim/spec/features/ifc_models/regular_ifc_upload_spec.rb b/modules/bim/spec/features/ifc_models/regular_ifc_upload_spec.rb
index e9ceec4c3ecc..a7b6678e3205 100644
--- a/modules/bim/spec/features/ifc_models/regular_ifc_upload_spec.rb
+++ b/modules/bim/spec/features/ifc_models/regular_ifc_upload_spec.rb
@@ -32,5 +32,17 @@
 RSpec.describe "IFC upload", :js, with_config: { edition: "bim" } do
   it_behaves_like "can upload an IFC file" do
     let(:model_name) { "minimal.ifc" }
+
+    context "when the file size exceeds the allowed maximum", with_settings: { attachment_max_size: 1 } do
+      it "renders an error message" do
+        visit new_bcf_project_ifc_model_path(project_id: project.identifier)
+
+        page.attach_file("file", ifc_fixture.path, visible: :all)
+
+        click_on "Create"
+
+        expect(page).to have_content("IFC file is too large (maximum size is 1024 Bytes).")
+      end
+    end
   end
 end
diff --git a/modules/bim/spec/requests/ifc_models/set_direct_upload_filename_spec.rb b/modules/bim/spec/requests/ifc_models/set_direct_upload_filename_spec.rb
new file mode 100644
index 000000000000..99f468207fa0
--- /dev/null
+++ b/modules/bim/spec/requests/ifc_models/set_direct_upload_filename_spec.rb
@@ -0,0 +1,55 @@
+#-- copyright
+# OpenProject is an open source project management software.
+# Copyright (C) 2012-2024 the OpenProject GmbH
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License version 3.
+#
+# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
+# Copyright (C) 2006-2013 Jean-Philippe Lang
+# Copyright (C) 2010-2013 the ChiliProject Team
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+# See COPYRIGHT and LICENSE files for more details.
+#++
+
+require "spec_helper"
+require_module_spec_helper
+
+RSpec.describe "POST /projects/:project_id/ifc_models/set_direct_upload_file_name" do
+  shared_let(:user) { create(:admin, preferences: { time_zone: "Etc/UTC" }) }
+  let(:project) { build_stubbed(:project) }
+
+  context "when user is not logged in" do
+    it "requires login" do
+      post set_direct_upload_file_name_bcf_project_ifc_models_path(project_id: project.id)
+      expect(last_response.status).to eq(406) # rubocop:disable RSpecRails/HaveHttpStatus
+    end
+  end
+
+  context "when user is logged in" do
+    before { login_as(user) }
+
+    context "and the upload exceeds the maximum size", with_settings: { attachment_max_size: 1 } do
+      it "returns a 422" do
+        post set_direct_upload_file_name_bcf_project_ifc_models_path(project_id: project.id),
+             { title: "Test.ifc", isDefault: "0", filesize: "113328073" }
+        expect(last_response.status).to eq(422) # rubocop:disable RSpecRails/HaveHttpStatus
+        expect(parse_json(last_response.body)).to eq({ "error" => "is too large (maximum size is 1024 Bytes)." })
+      end
+    end
+  end
+end