diff --git a/src/ifcgeom/Converter.cpp b/src/ifcgeom/Converter.cpp
index 5d454f8809..793778e508 100644
--- a/src/ifcgeom/Converter.cpp
+++ b/src/ifcgeom/Converter.cpp
@@ -177,7 +177,15 @@ IfcGeom::BRepElement* ifcopenshell::geometry::Converter::create_brep_for_represe
 	// Note that openings for IfcOpeningElements are not processed
 	auto openings = mapping_->find_openings(product);
 
-	if (!settings_.get<ifcopenshell::geometry::settings::DisableOpeningSubtractions>().get() && !openings.empty()) {
+	const bool no_openings = openings.empty();
+    const bool disable_opening_subtractions = settings_.get<ifcopenshell::geometry::settings::DisableOpeningSubtractions>().get();
+    const bool above_limit = settings_.get<ifcopenshell::geometry::settings::MaxVoidsPerElement>().has() && settings_.get<ifcopenshell::geometry::settings::MaxVoidsPerElement>().get() != 0 && openings.size() > settings_.get<ifcopenshell::geometry::settings::MaxVoidsPerElement>().get();
+
+	if (above_limit) {
+		logger_.warning("GEO", 403, "Element has more openings than the maximum allowed. Openings will not be processed for this element:", product);
+    }
+
+	if (!no_openings && !disable_opening_subtractions && !above_limit) {
 		representation_id_builder << "-openings";
         for (auto& op : openings) {
 			representation_id_builder << "-" << op.id();
diff --git a/src/ifcgeom/tests/CMakeLists.txt b/src/ifcgeom/tests/CMakeLists.txt
index 52307850e2..4bc6ec6e17 100644
--- a/src/ifcgeom/tests/CMakeLists.txt
+++ b/src/ifcgeom/tests/CMakeLists.txt
@@ -3,9 +3,20 @@
 add_executable(test_ifcopenshell_geometry
     test_ifcopenshell_geometry.cpp
 )
-target_link_libraries(test_ifcopenshell_geometry PRIVATE Catch2::Catch2WithMain)
+if(NOT TARGET parse_schema_ifc2x3)
+    message(FATAL_ERROR "test_ifcopenshell_geometry requires SCHEMA_VERSIONS to include 2x3.")
+endif()
+target_include_directories(test_ifcopenshell_geometry PRIVATE "${CMAKE_SOURCE_DIR}/../src")
+target_link_libraries(test_ifcopenshell_geometry PRIVATE Catch2::Catch2WithMain IfcGeom IfcParse parse_schema_ifc2x3)
+add_dependencies(test_ifcopenshell_geometry geometry_mapping_ifc2x3 geometry_kernel_passthrough)
 catch_discover_tests(test_ifcopenshell_geometry
     DL_PATHS
         $<TARGET_FILE_DIR:Catch2::Catch2>
         $<TARGET_FILE_DIR:Catch2::Catch2WithMain>
+        $<TARGET_FILE_DIR:IfcGeom>
+        $<TARGET_FILE_DIR:IfcParse>
+        $<TARGET_FILE_DIR:parse_schema_ifc2x3>
+        $<TARGET_FILE_DIR:plugin>
+        # Catch2 discovery uses DL_PATHS in order; CTest PATH prepends reverse it.
+        $<TARGET_FILE_DIR:IfcGeom>
 )
diff --git a/src/ifcgeom/tests/test_ifcopenshell_geometry.cpp b/src/ifcgeom/tests/test_ifcopenshell_geometry.cpp
index 36fa0aa699..2bee8548e2 100644
--- a/src/ifcgeom/tests/test_ifcopenshell_geometry.cpp
+++ b/src/ifcgeom/tests/test_ifcopenshell_geometry.cpp
@@ -1,7 +1,81 @@
-// This file was generated with the assistance of an AI coding tool.
+#include <algorithm>
+#include <string>
 
 #include <catch2/catch_test_macros.hpp>
 
-TEST_CASE("IfcGeom C++ test scaffold is registered", "[ifcgeom]") {
-    REQUIRE(true);
+#include "ifcgeom/Converter.h"
+#include "ifcgeom/kernel_registry.h"
+#define IfcSchema Ifc2x3
+#include "ifcparse/hierarchy_helper.h"
+#include "ifcparse/macros.h"
+#include "ifcparse/schemas/Ifc2x3.h"
+
+namespace {
+
+constexpr int MAX_VOIDS = 30;
+
+IfcSchema::IfcWallStandardCase create_wall_with_voids(hierarchy_helper<IfcSchema>& file, int void_count) {
+    file.header().file_name().setname("wall-with-voids.ifc");
+
+    auto wall = file.create<IfcSchema::IfcWallStandardCase>();
+    wall.setGlobalId(ifcopenshell::global_id());
+    wall.setName("Wall with " + std::to_string(void_count) + " voids");
+    file.addBuildingProduct(wall);
+
+    const auto owner_history = file.getSingle<IfcSchema::IfcOwnerHistory>();
+    const auto storey_placement = file.getSingle<IfcSchema::IfcBuildingStorey>().ObjectPlacement();
+    const double opening_spacing = 350.0;
+    const double wall_width = std::max(12000.0, void_count * opening_spacing + 1000.0);
+    const double wall_depth = 360.0;
+    const double wall_height = 3000.0;
+
+    wall.setOwnerHistory(owner_history);
+    wall.setObjectPlacement(file.addLocalPlacement(storey_placement));
+    wall.setRepresentation(file.addAxisBox(wall_width, wall_depth, wall_height));
+
+    const double first_opening_x = -((void_count - 1) * opening_spacing) / 2.0;
+    for (int i = 0; i < void_count; ++i) {
+        auto opening = file.create<IfcSchema::IfcOpeningElement>();
+        opening.setGlobalId(ifcopenshell::global_id());
+        opening.setOwnerHistory(owner_history);
+        opening.setName("Opening " + std::to_string(i + 1));
+        opening.setObjectPlacement(file.addLocalPlacement(
+            wall.ObjectPlacement(),
+            first_opening_x + i * opening_spacing,
+            0.0,
+            900.0));
+        opening.setRepresentation(file.addBox(200.0, wall_depth + 40.0, 1200.0));
+
+        auto void_element = file.create<IfcSchema::IfcRelVoidsElement>();
+        void_element.setGlobalId(ifcopenshell::global_id());
+        void_element.setOwnerHistory(owner_history);
+        void_element.setRelatingBuildingElement(wall);
+        void_element.setRelatedOpeningElement(opening);
+    }
+
+    return wall;
+}
+
+std::size_t count_geo403_for_wall(hierarchy_helper<IfcSchema>& file, const IfcSchema::IfcWallStandardCase& wall) {
+    ifcopenshell::geometry::Settings settings;
+    settings.set("max-voids-per-element", MAX_VOIDS);
+
+    logger log;
+    log.output_format(logger::FMT_INMEMORY);
+    ifcopenshell::geometry::Converter converter(
+        ifcopenshell::geometry::kernels::construct(&file, "opencascade", settings), &file, settings, log);
+    delete converter.create_brep_for_representation_and_product(wall.Representation().Representations().back(), wall);
+    return log.count("GEO403");
+}
+
+} // namespace
+
+TEST_CASE("IfcGeom C++ fixture creates walls below and above the void limit", "[ifcgeom][voids]") {
+    hierarchy_helper<IfcSchema> below_limit_file;
+    const auto below_limit_wall = create_wall_with_voids(below_limit_file, MAX_VOIDS - 1);
+    REQUIRE(count_geo403_for_wall(below_limit_file, below_limit_wall) == 0);
+
+    hierarchy_helper<IfcSchema> above_limit_file;
+    const auto above_limit_wall = create_wall_with_voids(above_limit_file, MAX_VOIDS + 1);
+    REQUIRE(count_geo403_for_wall(above_limit_file, above_limit_wall) == 1);
 }
diff --git a/src/ifcparse/logger.cpp b/src/ifcparse/logger.cpp
index 6655d29eff..09bb1ad8b9 100644
--- a/src/ifcparse/logger.cpp
+++ b/src/ifcparse/logger.cpp
@@ -290,6 +290,15 @@ std::string logger::get_log() {
     return log_stream_.str();
 }
 
+std::size_t logger::count(const std::string& code) {
+    std::lock_guard<std::mutex> lock(mutex_);
+    std::size_t count = 0;
+    for (const auto& message : log_messages_) {
+        count += code == message.code;
+    }
+    return count;
+}
+
 void logger::clear() {
     std::lock_guard<std::mutex> lock(mutex_);
     log_stream_.str(std::string());
diff --git a/src/ifcparse/logger.h b/src/ifcparse/logger.h
index 3e4f05b7f8..9f41b00574 100644
--- a/src/ifcparse/logger.h
+++ b/src/ifcparse/logger.h
@@ -24,6 +24,7 @@
 #include "express.h"
 
 #include <boost/scope_exit.hpp>
+#include <cstddef>
 #include <cstdint>
 #include <exception>
 #include <map>
@@ -136,6 +137,7 @@ class IFC_PARSE_API logger {
 
     void progress_bar(int progress);
     std::string get_log();
+    std::size_t count(const std::string& code);
     void clear();
     void append(logger& other);
     void print_performance_stats();