diff --git a/Fw/Types/CMakeLists.txt b/Fw/Types/CMakeLists.txt
index 3698ad4edc6..25ac4b22926 100644
--- a/Fw/Types/CMakeLists.txt
+++ b/Fw/Types/CMakeLists.txt
@@ -17,7 +17,7 @@ register_fprime_module(
   AUTOCODER_INPUTS
     "${CMAKE_CURRENT_LIST_DIR}/Types.fpp"
   DEPENDS
-    __fprime_config # Only module that should ever list __fprime_config in DEPENDS. Use Fw_Types instead.
+    _fprime_project_interface # Only module that should ever list _fprime_project_interface in DEPENDS. Use Fw_Types instead.
   REQUIRES_IMPLEMENTATIONS
     Fw_StringFormat
     Fw_StringScan
diff --git a/cmake/API.cmake b/cmake/API.cmake
index 3d9cb4eeaf3..73e51526281 100644
--- a/cmake/API.cmake
+++ b/cmake/API.cmake
@@ -20,11 +20,7 @@ include(fprime-util)
 set(FPRIME_TARGET_LIST "" CACHE INTERNAL "FPRIME_TARGET_LIST: custom fprime targets" FORCE)
 set(FPRIME_UT_TARGET_LIST "" CACHE INTERNAL "FPRIME_UT_TARGET_LIST: custom fprime targets" FORCE)
 set(FPRIME_AUTOCODER_TARGET_LIST "" CACHE INTERNAL "FPRIME_AUTOCODER_TARGET_LIST: custom fprime targets" FORCE)
-set(FPRIME_GLOBAL_INTERFACE_TARGET "_fprime_global_interface_target" CACHE INTERNAL "FPRIME_GLOBAL_INTERFACE_TARGETS: global interface targets" FORCE)
-# Create a singleton global interface target
-if (NOT TARGET "${FPRIME_GLOBAL_INTERFACE_TARGET}")
-    add_library("${FPRIME_GLOBAL_INTERFACE_TARGET}" INTERFACE)
-endif()
+
 
 ####
 # Macro `skip_on_sub_build`:
@@ -469,16 +465,19 @@ function(fprime_add_config_build_target)
 
     # The new module should include the root configuration directory
     fprime_target_include_directories("${INTERNAL_MODULE_NAME}" PUBLIC "${CMAKE_CURRENT_BINARY_DIR}/..")
+    # Propagate config include directories to the unified interface target so they are available
+    # when reading INTERFACE_INCLUDE_DIRECTORIES directly (which is not transitive)
+    target_include_directories("${FPRIME_PROJECT_INTERFACE_TARGET}" INTERFACE "${CMAKE_CURRENT_BINARY_DIR}/..")
     # The configuration target should depend on the new module
     if (INTERNAL_BASE_CONFIG)
-        target_link_libraries("${FPRIME__INTERNAL_CONFIG_TARGET_NAME}" INTERFACE "${INTERNAL_MODULE_NAME}")
+        target_link_libraries("${FPRIME_PROJECT_INTERFACE_TARGET}" INTERFACE "${INTERNAL_MODULE_NAME}")
     endif()
     # Set up the new module to be marked as FPRIME_CONFIGURATION
     append_list_property("${INTERNAL_MODULE_NAME}" GLOBAL PROPERTY "FPRIME_CONFIG_MODULES")
     set_property(TARGET "${INTERNAL_MODULE_NAME}" PROPERTY FPRIME_CONFIGURATION TRUE)
     # Targets likely do not exist yet, so just aggregate the complete list of chosen implementations
     # for processing later
-    append_list_property("${INTERNAL_CHOOSES_IMPLEMENTATIONS}" TARGET "${FPRIME__INTERNAL_CONFIG_TARGET_NAME}" PROPERTY FPRIME_CHOSEN_IMPLEMENTATIONS)
+    append_list_property("${INTERNAL_CHOOSES_IMPLEMENTATIONS}" TARGET "${FPRIME_PROJECT_INTERFACE_TARGET}" PROPERTY FPRIME_CHOSEN_IMPLEMENTATIONS)
 
     # Static libraries must be position independent when building shared libraries
     get_target_property(CONFIG_LIBRARY_TYPE "${INTERNAL_MODULE_NAME}" TYPE)
@@ -751,14 +750,18 @@ macro(register_fprime_project)
 
     # Add to the build locations property
     append_list_property("${CMAKE_CURRENT_SOURCE_DIR}" GLOBAL PROPERTY FPRIME_PROJECT_LOCATIONS)
-    # Add source and binaries to the interface includes of our singular global interface target
-    target_include_directories("${FPRIME_GLOBAL_INTERFACE_TARGET}" INTERFACE "${CMAKE_CURRENT_SOURCE_DIR}")
-    target_include_directories("${FPRIME_GLOBAL_INTERFACE_TARGET}" INTERFACE "${CMAKE_CURRENT_BINARY_DIR}")
+
+    # Store source and binary locations as properties on the unified interface target
+    append_list_property("${CMAKE_CURRENT_SOURCE_DIR}" TARGET "${FPRIME_PROJECT_INTERFACE_TARGET}" PROPERTY FPRIME_SOURCE_LOCATIONS)
+    append_list_property("${CMAKE_CURRENT_BINARY_DIR}" TARGET "${FPRIME_PROJECT_INTERFACE_TARGET}" PROPERTY FPRIME_BINARY_LOCATIONS)
+    # Add source and binaries to the interface includes of the unified interface target
+    target_include_directories("${FPRIME_PROJECT_INTERFACE_TARGET}" INTERFACE "${CMAKE_CURRENT_SOURCE_DIR}")
+    target_include_directories("${FPRIME_PROJECT_INTERFACE_TARGET}" INTERFACE "${CMAKE_CURRENT_BINARY_DIR}")
 
     # Backwards compatibility: update the build locations variable as well
     set(FPRIME_BUILD_LOCATIONS "${CMAKE_CURRENT_SOURCE_DIR};${FPRIME_BUILD_LOCATIONS}" CACHE INTERNAL "FPRIME_BUILD_LOCATIONS: list of source directories containing fprime modules" FORCE)
     # Backwards compatibility: bridge the interface target include directories back into the include_directories directive
-    include_directories("$<TARGET_PROPERTY:${FPRIME_GLOBAL_INTERFACE_TARGET},INTERFACE_INCLUDE_DIRECTORIES>")
+    include_directories("$<TARGET_PROPERTY:${FPRIME_PROJECT_INTERFACE_TARGET},INTERFACE_INCLUDE_DIRECTORIES>")
 
     # Update the CMAKE_MODULE_PATH for this particular project
     get_property(FPRIME_PROJECT_LOCATIONS GLOBAL PROPERTY FPRIME_PROJECT_LOCATIONS)
diff --git a/cmake/FPrime.cmake b/cmake/FPrime.cmake
index 42d1b6a2d62..fddeb863301 100644
--- a/cmake/FPrime.cmake
+++ b/cmake/FPrime.cmake
@@ -12,6 +12,7 @@ include(utilities)
 include(options)
 include(sanitizers) # Enable sanitizers if they are requested
 include(required)
+include(project_interface)
 include(config_assembler)
 include(fprime-util)
 
@@ -42,6 +43,20 @@ set(FPRIME_BUILD_LOCATIONS "${FPRIME_FRAMEWORK_PATH}" ${FPRIME_LIBRARY_LOCATIONS
 list(REMOVE_DUPLICATES FPRIME_BUILD_LOCATIONS)
 resolve_path_variables(FPRIME_BUILD_LOCATIONS)
 
+# Populate the unified project interface target with initial build locations
+set(FPRIME_SOURCE_BUILD_LOCATIONS "${FPRIME_FRAMEWORK_PATH}" ${FPRIME_LIBRARY_LOCATIONS} "${FPRIME_PROJECT_ROOT}")
+set(FPRIME_BINARY_BUILD_LOCATIONS "${CMAKE_BINARY_DIR}/F-Prime" "${CMAKE_BINARY_DIR}")
+resolve_path_variables(FPRIME_SOURCE_BUILD_LOCATIONS)
+resolve_path_variables(FPRIME_BINARY_BUILD_LOCATIONS)
+foreach(LOC IN LISTS FPRIME_SOURCE_BUILD_LOCATIONS)
+    append_list_property("${LOC}" TARGET "${FPRIME_PROJECT_INTERFACE_TARGET}" PROPERTY FPRIME_SOURCE_LOCATIONS)
+    target_include_directories("${FPRIME_PROJECT_INTERFACE_TARGET}" INTERFACE "${LOC}")
+endforeach()
+foreach(LOC IN LISTS FPRIME_BINARY_BUILD_LOCATIONS)
+    append_list_property("${LOC}" TARGET "${FPRIME_PROJECT_INTERFACE_TARGET}" PROPERTY FPRIME_BINARY_LOCATIONS)
+    target_include_directories("${FPRIME_PROJECT_INTERFACE_TARGET}" INTERFACE "${LOC}")
+endforeach()
+
 # Message describing the fprime setup
 fprime_cmake_status("[FPRIME] Module locations: ${FPRIME_BUILD_LOCATIONS}")
 fprime_cmake_status("[FPRIME] Installation directory: ${CMAKE_INSTALL_PREFIX}")
@@ -73,13 +88,8 @@ include(settings)
 # function as expected. This will also include the internal build-cache directories.
 ####
 function(fprime_setup_global_includes)
-    # Setup the global include directories that exist outside of the build cache
-    include_directories("${FPRIME_FRAMEWORK_PATH}")
-    include_directories("${FPRIME_PROJECT_ROOT}")
-
-    # Setup the include directories that exist within the build-cache
-    include_directories("${CMAKE_BINARY_DIR}")
-    include_directories("${CMAKE_BINARY_DIR}/F-Prime")
+    # Bridge the unified interface target include directories into the directory-scoped include path
+    include_directories("$<TARGET_PROPERTY:${FPRIME_PROJECT_INTERFACE_TARGET},INTERFACE_INCLUDE_DIRECTORIES>")
 endfunction(fprime_setup_global_includes)
 
 ####
diff --git a/cmake/autocoder/fpp.cmake b/cmake/autocoder/fpp.cmake
index 53c172d1570..009cf567003 100644
--- a/cmake/autocoder/fpp.cmake
+++ b/cmake/autocoder/fpp.cmake
@@ -204,7 +204,16 @@ function(fpp_setup_autocode MODULE_NAME AC_INPUT_FILES)
     set(CMAKE_BINARY_DIR_RESOLVED "${CMAKE_BINARY_DIR}")
     set(CMAKE_CURRENT_BINARY_DIR_RESOLVED "${CMAKE_CURRENT_BINARY_DIR}")
     resolve_path_variables(CMAKE_BINARY_DIR_RESOLVED CMAKE_CURRENT_BINARY_DIR_RESOLVED)
-    string(REGEX REPLACE ";" ","  FPRIME_BUILD_LOCATIONS_COMMA_SEP "${FPRIME_BUILD_LOCATIONS}")
+    get_target_property(FPRIME_SOURCE_LOCS "${FPRIME_PROJECT_INTERFACE_TARGET}" FPRIME_SOURCE_LOCATIONS)
+    get_target_property(FPRIME_BINARY_LOCS "${FPRIME_PROJECT_INTERFACE_TARGET}" FPRIME_BINARY_LOCATIONS)
+    if (NOT FPRIME_SOURCE_LOCS)
+        set(FPRIME_SOURCE_LOCS "")
+    endif()
+    if (NOT FPRIME_BINARY_LOCS)
+        set(FPRIME_BINARY_LOCS "")
+    endif()
+    set(FPRIME_BUILD_LOCS ${FPRIME_SOURCE_LOCS} ${FPRIME_BINARY_LOCS})
+    string(REGEX REPLACE ";" ","  FPRIME_INCLUDE_DIRS_COMMA_SEP "${FPRIME_BUILD_LOCS}")
     string(REGEX REPLACE ";" ","  FPP_IMPORTS_COMMA_SEP "${FPP_IMPORTS}")
     set(IMPORTS)
     if (FPP_IMPORTS_COMMA_SEP)
@@ -235,7 +244,7 @@ function(fpp_setup_autocode MODULE_NAME AC_INPUT_FILES)
         add_custom_command(
                 OUTPUT ${GENERATED_CPP}
                 COMMAND ${FPP_TO_CPP} "-d" "${CMAKE_CURRENT_BINARY_DIR_RESOLVED}" ${IMPORTS} ${AC_INPUT_FILES}
-                    "-p" "${FPRIME_BUILD_LOCATIONS_COMMA_SEP},${CMAKE_BINARY_DIR_RESOLVED}"
+                    "-p" "${FPRIME_INCLUDE_DIRS_COMMA_SEP}"
                 DEPENDS ${FILE_DEPENDENCIES}
         )
     endif()
diff --git a/cmake/autocoder/fpp_ut.cmake b/cmake/autocoder/fpp_ut.cmake
index 615220549aa..1c9c03bf6ef 100644
--- a/cmake/autocoder/fpp_ut.cmake
+++ b/cmake/autocoder/fpp_ut.cmake
@@ -32,7 +32,16 @@ function(fpp_ut_setup_autocode MODULE_NAME AC_INPUT_FILES)
         message(FATAL_ERROR "fpp tools not found, please install them onto your system path")
     endif()
     fpp_info("${MODULE_NAME}" "${AC_INPUT_FILES}")
-    string(REGEX REPLACE ";" ","  FPRIME_BUILD_LOCATIONS_COMMA_SEP "${FPRIME_BUILD_LOCATIONS}")
+    get_target_property(FPRIME_SOURCE_LOCS "${FPRIME_PROJECT_INTERFACE_TARGET}" FPRIME_SOURCE_LOCATIONS)
+    get_target_property(FPRIME_BINARY_LOCS "${FPRIME_PROJECT_INTERFACE_TARGET}" FPRIME_BINARY_LOCATIONS)
+    if (NOT FPRIME_SOURCE_LOCS)
+        set(FPRIME_SOURCE_LOCS "")
+    endif()
+    if (NOT FPRIME_BINARY_LOCS)
+        set(FPRIME_BINARY_LOCS "")
+    endif()
+    set(FPRIME_BUILD_LOCS ${FPRIME_SOURCE_LOCS} ${FPRIME_BINARY_LOCS})
+    string(REGEX REPLACE ";" ","  FPRIME_INCLUDE_DIRS_COMMA_SEP "${FPRIME_BUILD_LOCS}")
     string(REGEX REPLACE ";" ","  FPP_IMPORTS_COMMA_SEP "${FPP_IMPORTS}")
     set(IMPORTS)
     if (FPP_IMPORTS_COMMA_SEP)
@@ -44,7 +53,7 @@ function(fpp_ut_setup_autocode MODULE_NAME AC_INPUT_FILES)
     foreach(GENERATED IN LISTS UNITTEST_FILES)
         list(APPEND GENERATED_CPP "${GENERATED}")
     endforeach()
-    set(CLI_ARGS ${FPP_TO_CPP} "-u" "-d" "${CMAKE_CURRENT_BINARY_DIR}" ${IMPORTS} ${AC_INPUT_FILES} "-p" "${FPRIME_BUILD_LOCATIONS_COMMA_SEP},${CMAKE_BINARY_DIR}")
+    set(CLI_ARGS ${FPP_TO_CPP} "-u" "-d" "${CMAKE_CURRENT_BINARY_DIR}" ${IMPORTS} ${AC_INPUT_FILES} "-p" "${FPRIME_INCLUDE_DIRS_COMMA_SEP}")
     get_target_property(UT_AUTO_HELPERS "${MODULE_NAME}" FPRIME_UT_AUTO_HELPERS)
     if (UT_AUTO_HELPERS)
         list(APPEND CLI_ARGS "-a")
diff --git a/cmake/config_assembler.cmake b/cmake/config_assembler.cmake
index 631a141be65..79972a5f56e 100644
--- a/cmake/config_assembler.cmake
+++ b/cmake/config_assembler.cmake
@@ -4,9 +4,7 @@
 # CMake configuration handling function.
 ####
 include_guard()
-# Create a target to act as an interface to all fprime configuration modules
-set(FPRIME__INTERNAL_CONFIG_TARGET_NAME "__fprime_config" CACHE INTERNAL "Internal name of the config target" FORCE)
-add_library(${FPRIME__INTERNAL_CONFIG_TARGET_NAME} INTERFACE)
+include(project_interface)
 
 ####
 # Function `fprime__internal_process_configuration_sources`:
diff --git a/cmake/project_interface.cmake b/cmake/project_interface.cmake
new file mode 100644
index 00000000000..21a938f20f8
--- /dev/null
+++ b/cmake/project_interface.cmake
@@ -0,0 +1,24 @@
+####
+# project_interface.cmake:
+#
+# Defines the unified F Prime project interface target. This single INTERFACE library
+# replaces both the global interface target (formerly in API.cmake) and the configuration
+# interface target (formerly in config_assembler.cmake). It aggregates:
+#
+#   - Global include directories (source and binary locations)
+#   - Build location properties (FPRIME_SOURCE_LOCATIONS, FPRIME_BINARY_LOCATIONS)
+#   - Configuration module dependencies and chosen implementations
+#
+# Custom target properties:
+#   FPRIME_SOURCE_LOCATIONS: list of source directories registered as build locations
+#   FPRIME_BINARY_LOCATIONS: list of binary directories registered as build locations
+#   FPRIME_CHOSEN_IMPLEMENTATIONS: list of chosen implementations from config modules
+####
+include_guard()
+
+set(FPRIME_PROJECT_INTERFACE_TARGET "_fprime_project_interface" CACHE INTERNAL
+    "Unified F Prime project interface target" FORCE)
+
+if (NOT TARGET "${FPRIME_PROJECT_INTERFACE_TARGET}")
+    add_library("${FPRIME_PROJECT_INTERFACE_TARGET}" INTERFACE)
+endif()
diff --git a/cmake/target/sub-build/module_info.cmake b/cmake/target/sub-build/module_info.cmake
index 472ffa154d2..2b894181f99 100644
--- a/cmake/target/sub-build/module_info.cmake
+++ b/cmake/target/sub-build/module_info.cmake
@@ -25,7 +25,7 @@ function(module_info_add_global_target CUSTOM_TARGET_NAME)
     add_custom_target("module_info"
         COMMAND "${FPRIME__INTERNAL_PROPERTY_WRITER}" "--file" "${MODULE_INFO_FILE}.part"
             SET GLOBAL PROPERTY FPRIME_BASE_CHOSEN_IMPLEMENTATIONS
-            "$<TARGET_PROPERTY:${FPRIME__INTERNAL_CONFIG_TARGET_NAME},FPRIME_CHOSEN_IMPLEMENTATIONS>" 
+            "$<TARGET_PROPERTY:${FPRIME_PROJECT_INTERFACE_TARGET},FPRIME_CHOSEN_IMPLEMENTATIONS>" 
         COMMAND_EXPAND_LISTS
         COMMAND "${FPRIME__INTERNAL_CAT}"
            $<TARGET_PROPERTY:${CUSTOM_TARGET_NAME},FPRIME_CONCATENATED_FILES>
diff --git a/cmake/test/data/cmake/target/test_recursion.cmake b/cmake/test/data/cmake/target/test_recursion.cmake
index 4c5acb81ba4..51ffe82b190 100644
--- a/cmake/test/data/cmake/target/test_recursion.cmake
+++ b/cmake/test/data/cmake/target/test_recursion.cmake
@@ -61,7 +61,7 @@ set(EXPECTED_FULL_DEPENDENCIES
     TestLibrary_TestComponent
     UnixPlatformTypes
     Utils_Hash
-    __fprime_config
+    _fprime_project_interface
     default_config
 )
 
diff --git a/cmake/utilities.cmake b/cmake/utilities.cmake
index 04a70bb24be..d05d044a239 100644
--- a/cmake/utilities.cmake
+++ b/cmake/utilities.cmake
@@ -248,7 +248,6 @@ function(linker_only OUTPUT_VAR TOKEN)
 endfunction()
 
 
-
 ####
 # Function `get_nearest_build_root`:
 #
@@ -259,9 +258,19 @@ endfunction()
 ####
 function(get_nearest_build_root DIRECTORY_PATH)
     get_filename_component(DIRECTORY_PATH "${DIRECTORY_PATH}" ABSOLUTE)
+    # Read build locations from the unified project interface target
+    get_target_property(SOURCE_LOCS "${FPRIME_PROJECT_INTERFACE_TARGET}" FPRIME_SOURCE_LOCATIONS)
+    get_target_property(BINARY_LOCS "${FPRIME_PROJECT_INTERFACE_TARGET}" FPRIME_BINARY_LOCATIONS)
+    if (NOT SOURCE_LOCS)
+        set(SOURCE_LOCS "")
+    endif()
+    if (NOT BINARY_LOCS)
+        set(BINARY_LOCS "")
+    endif()
+    set(ALL_BUILD_LOCATIONS ${SOURCE_LOCS} ${BINARY_LOCS})
     set(FOUND_BUILD_ROOT "${DIRECTORY_PATH}")
     set(LAST_REL "${DIRECTORY_PATH}")
-    foreach(FPRIME_BUILD_LOC ${FPRIME_BUILD_LOCATIONS} ${CMAKE_BINARY_DIR}/F-Prime ${CMAKE_BINARY_DIR})
+    foreach(FPRIME_BUILD_LOC IN LISTS ALL_BUILD_LOCATIONS)
         get_filename_component(FPRIME_BUILD_LOC "${FPRIME_BUILD_LOC}" ABSOLUTE)
         file(RELATIVE_PATH TEMP_MODULE ${FPRIME_BUILD_LOC} ${DIRECTORY_PATH})
         string(LENGTH "${LAST_REL}" LEN1)