diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4050294..7421562 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -142,24 +142,6 @@ if(WITH_OTLP_GRPC)
        set(GRPC_SHARED "-DBUILD_SHARED_LIBS=ON")
    endif()
 
-   include(ExternalProject)
-   ExternalProject_Add(
-       ${GRPC_PACKAGE_NAME}
-       GIT_REPOSITORY ${GRPC_GIT_REPOSITORY}
-       GIT_TAG ${GRPC_GIT_TAG}
-       PREFIX ${GRPC_PREFIX}
-       UPDATE_DISCONNECTED 1
-       PATCH_COMMAND ${GRPC_PATCH_CMD}
-       CMAKE_ARGS -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER} -DCMAKE_C_COMPILER=${CMAKE_C_COMPILER} -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} -DCMAKE_INSTALL_RPATH=${CMAKE_INSTALL_RPATH} ${GRPC_SHARED} -DgRPC_INSTALL=ON -DgRPC_BUILD_TESTS=OFF -DCMAKE_CROSSCOMPILING=OFF -DgRPC_ZLIB_PROVIDER=package -DgRPC_ABSL_PROVIDER=package -DgRPC_PROTOBUF_PROVIDER=package -DgRPC_RE2_PROVIDER=package -DgRPC_SSL_PROVIDER=package -DgRPC_CARES_PROVIDER=package -DgRPC_BUILD_GRPC_CSHARP_PLUGIN=OFF -DgRPC_BUILD_GRPC_NODE_PLUGIN=OFF -DgRPC_BUILD_GRPC_OBJECTIVE_C_PLUGIN=OFF -DgRPC_BUILD_GRPC_PHP_PLUGIN=OFF -DgRPC_BUILD_GRPC_PYTHON_PLUGIN=OFF -DgRPC_BUILD_GRPC_RUBY_PLUGIN=OFF -DCMAKE_TOOLCHAIN_FILE=${CMAKE_TOOLCHAIN_FILE} -DVCPKG_INSTALLED_DIR=${VCPKG_INSTALLED_DIR} ${TRIPLET_DEFINITIONS}
-       INSTALL_DIR ${GRPC_INSTALL_DIR}
-       INSTALL_COMMAND ${CMAKE_COMMAND} --install . --prefix ${GRPC_INSTALL_DIR} --config $<CONFIG>
-   )
-
-   if(UNIX AND NOT APPLE AND NOT CYGWIN)
-       # needed for running protoc as part of the opentelemetry-cpp build
-       set(GRPC_LD_LIBRARY_PATH_ENV "LD_LIBRARY_PATH=${GRPC_INSTALL_LIB_DIR}")
-   endif()
-
    if(WIN32)
        set(GRPC_LINK_LIBRARIES ${GRPC_INSTALL_LIB_DIR}/address_sorting.lib
 	                   ${GRPC_INSTALL_LIB_DIR}/gpr.lib
@@ -182,6 +164,26 @@ if(WITH_OTLP_GRPC)
     else()
        set(GRPC_LINK_LIBRARIES ${GRPC_INSTALL_LIB_DIR}/libgrpc++${CMAKE_SHARED_LIBRARY_SUFFIX})
     endif()
+
+   include(ExternalProject)
+   ExternalProject_Add(
+       ${GRPC_PACKAGE_NAME}
+       GIT_REPOSITORY ${GRPC_GIT_REPOSITORY}
+       GIT_TAG ${GRPC_GIT_TAG}
+       PREFIX ${GRPC_PREFIX}
+       UPDATE_DISCONNECTED 1
+       PATCH_COMMAND ${GRPC_PATCH_CMD}
+       CMAKE_ARGS -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER} -DCMAKE_C_COMPILER=${CMAKE_C_COMPILER} -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} -DCMAKE_INSTALL_RPATH=${CMAKE_INSTALL_RPATH} ${GRPC_SHARED} -DgRPC_INSTALL=ON -DgRPC_BUILD_TESTS=OFF -DCMAKE_CROSSCOMPILING=OFF -DgRPC_ZLIB_PROVIDER=package -DgRPC_ABSL_PROVIDER=package -DgRPC_PROTOBUF_PROVIDER=package -DgRPC_RE2_PROVIDER=package -DgRPC_SSL_PROVIDER=package -DgRPC_CARES_PROVIDER=package -DgRPC_BUILD_GRPC_CSHARP_PLUGIN=OFF -DgRPC_BUILD_GRPC_NODE_PLUGIN=OFF -DgRPC_BUILD_GRPC_OBJECTIVE_C_PLUGIN=OFF -DgRPC_BUILD_GRPC_PHP_PLUGIN=OFF -DgRPC_BUILD_GRPC_PYTHON_PLUGIN=OFF -DgRPC_BUILD_GRPC_RUBY_PLUGIN=OFF -DCMAKE_TOOLCHAIN_FILE=${CMAKE_TOOLCHAIN_FILE} -DVCPKG_INSTALLED_DIR=${VCPKG_INSTALLED_DIR} ${TRIPLET_DEFINITIONS}
+       BUILD_BYPRODUCTS ${GRPC_LINK_LIBRARIES}
+       INSTALL_DIR ${GRPC_INSTALL_DIR}
+       INSTALL_COMMAND ${CMAKE_COMMAND} --install . --prefix ${GRPC_INSTALL_DIR} --config $<CONFIG>
+   )
+
+   if(UNIX AND NOT APPLE AND NOT CYGWIN)
+       # needed for running protoc as part of the opentelemetry-cpp build
+       set(GRPC_LD_LIBRARY_PATH_ENV "LD_LIBRARY_PATH=${GRPC_INSTALL_LIB_DIR}")
+   endif()
+
 endif()
 
 # ######################################
@@ -287,6 +289,10 @@ if(NOT DEFINED OTEL_CPP_INSTALLED_DIR)
        set(OTEL_CPP_PATCH_CMD "")
    endif()
 
+   if(WITH_OTLP_GRPC)
+       set(OTEL_CPP_DEPENDS ${GRPC_PACKAGE_NAME})
+   endif()
+
    if(WIN32 OR APPLE)
        # Windows and Mac use the default build command
        # Note: examples are temporarily turned off (-DWITH_EXAMPLES=OFF) due to a build issue that is now fixed in #3284
@@ -296,6 +302,7 @@ if(NOT DEFINED OTEL_CPP_INSTALLED_DIR)
            GIT_REPOSITORY ${OTEL_CPP_GIT_REPOSITORY}
            GIT_TAG ${OTEL_CPP_GIT_TAG}
            PREFIX ${OTEL_CPP_PREFIX}
+           DEPENDS ${OTEL_CPP_DEPENDS}
            UPDATE_DISCONNECTED 1
            PATCH_COMMAND ${OTEL_CPP_PATCH_CMD}
            CMAKE_ARGS -DCMAKE_POSITION_INDEPENDENT_CODE=ON -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER} -DCMAKE_C_COMPILER=${CMAKE_C_COMPILER} -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} -DCMAKE_INSTALL_RPATH=${CMAKE_INSTALL_RPATH} -DgRPC_DIR=${GRPC_INSTALL_LIB_DIR}/cmake/grpc -DWITH_ABI_VERSION_1=OFF -DWITH_ABI_VERSION_2=ON -DWITH_OTLP_HTTP=${WITH_OTLP_HTTP} -DWITH_OTLP_GRPC=${WITH_OTLP_GRPC} -DWITH_OTLP_FILE=${WITH_OTLP_FILE} -DWITH_EXAMPLES=OFF -DBUILD_TESTING=OFF -DWITH_BENCHMARK=OFF -DOPENTELEMETRY_INSTALL=ON -DCMAKE_TOOLCHAIN_FILE=${CMAKE_TOOLCHAIN_FILE} -DCMAKE_CXX_STANDARD=${OTEL_CPP_CXX_STANDARD} -DVCPKG_INSTALLED_DIR=${VCPKG_INSTALLED_DIR} ${TRIPLET_DEFINITIONS}
@@ -312,6 +319,7 @@ if(NOT DEFINED OTEL_CPP_INSTALLED_DIR)
            GIT_REPOSITORY ${OTEL_CPP_GIT_REPOSITORY}
            GIT_TAG ${OTEL_CPP_GIT_TAG}
            PREFIX ${OTEL_CPP_PREFIX}
+           DEPENDS ${OTEL_CPP_DEPENDS}
            UPDATE_DISCONNECTED 1
            PATCH_COMMAND ${OTEL_CPP_PATCH_CMD}
            CMAKE_ARGS -DCMAKE_POSITION_INDEPENDENT_CODE=ON -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER} -DCMAKE_C_COMPILER=${CMAKE_C_COMPILER} -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} -DCMAKE_INSTALL_RPATH=${CMAKE_INSTALL_RPATH} -DgRPC_DIR=${GRPC_INSTALL_LIB_DIR}/cmake/grpc -DWITH_ABI_VERSION_1=OFF -DWITH_ABI_VERSION_2=ON -DWITH_OTLP_HTTP=${WITH_OTLP_HTTP} -DWITH_OTLP_GRPC=${WITH_OTLP_GRPC} -DWITH_OTLP_FILE=${WITH_OTLP_FILE} -DWITH_EXAMPLES=OFF -DBUILD_TESTING=OFF -DWITH_BENCHMARK=OFF -DOPENTELEMETRY_INSTALL=ON -DCMAKE_TOOLCHAIN_FILE=${CMAKE_TOOLCHAIN_FILE} -DCMAKE_CXX_STANDARD=${OTEL_CPP_CXX_STANDARD} -DVCPKG_INSTALLED_DIR=${VCPKG_INSTALLED_DIR} ${TRIPLET_DEFINITIONS}