diff --git a/CMakeLists.txt b/CMakeLists.txt
index 59d9e3a6..79551ce7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -96,20 +96,20 @@ endif()
 
 if (BUILD_IMPORTER)
    set(CUSTOMSCRIPTS
-       utils/check_import_finished.php
-       utils/country_languages.php
-       utils/importWikipedia.php
-       utils/export.php
-       utils/query.php
-       utils/setup.php
-       utils/specialphrases.php
-       utils/update.php
-       utils/warm.php
+       check_import_finished.php
+       country_languages.php
+       importWikipedia.php
+       export.php
+       query.php
+       setup.php
+       specialphrases.php
+       update.php
+       warm.php
       )
 
    foreach (script_source ${CUSTOMSCRIPTS})
        configure_file(${PROJECT_SOURCE_DIR}/cmake/script.tmpl
-                      ${PROJECT_BINARY_DIR}/${script_source})
+                      ${PROJECT_BINARY_DIR}/utils/${script_source})
    endforeach()
 endif()
 
@@ -119,27 +119,20 @@ endif()
 
 if (BUILD_API)
    set(WEBSITESCRIPTS
-       website/deletable.php
-       website/details.php
-       website/lookup.php
-       website/polygons.php
-       website/reverse.php
-       website/search.php
-       website/status.php
+       deletable.php
+       details.php
+       lookup.php
+       polygons.php
+       reverse.php
+       search.php
+       status.php
    )
 
    foreach (script_source ${WEBSITESCRIPTS})
        configure_file(${PROJECT_SOURCE_DIR}/cmake/website.tmpl
-                      ${PROJECT_BINARY_DIR}/${script_source})
+                      ${PROJECT_BINARY_DIR}/website/${script_source})
    endforeach()
 
-   set(WEBPATHS css images js)
-
-   foreach (wp ${WEBPATHS})
-       execute_process(
-           COMMAND ln -sf ${PROJECT_SOURCE_DIR}/website/${wp} ${PROJECT_BINARY_DIR}/website/
-       )
-   endforeach()
 
    add_custom_target(serve
            php -S 127.0.0.1:8088
diff --git a/cmake/script.tmpl b/cmake/script.tmpl
index 8146ca8b..1b0cab64 100755
--- a/cmake/script.tmpl
+++ b/cmake/script.tmpl
@@ -1,4 +1,9 @@
 #!@PHP_BIN@ -Cq
 <?php
-require_once(dirname(dirname(__FILE__)).'/settings/settings.php');
-require_once(CONST_BasePath.'/@script_source@');
+@define('CONST_BinDir', '@CMAKE_SOURCE_DIR@/utils');
+@define('CONST_LibDir', '@CMAKE_SOURCE_DIR@/lib');
+@define('CONST_DataDir', '@CMAKE_SOURCE_DIR@');
+@define('CONST_InstallDir', '@CMAKE_BINARY_DIR@');
+
+require_once(CONST_InstallDir.'/settings/settings.php');
+require_once(CONST_BinDir.'/@script_source@');
diff --git a/cmake/website.tmpl b/cmake/website.tmpl
index 268ded39..8194a8eb 100755
--- a/cmake/website.tmpl
+++ b/cmake/website.tmpl
@@ -1,5 +1,8 @@
 <?php
 @define('CONST_Debug', (isset($_GET['debug']) && $_GET['debug']));
-require_once(dirname(dirname(__FILE__)).'/settings/settings-frontend.php');
+@define('CONST_LibDir', '@CMAKE_SOURCE_DIR@/lib');
+@define('CONST_DataDir', '@CMAKE_SOURCE_DIR@');
+@define('CONST_InstallDir', '@CMAKE_BINARY_DIR@');
+require_once(CONST_InstallDir.'/settings/settings-frontend.php');
 
-require_once(CONST_BasePath.'/@script_source@');
+require_once('@CMAKE_SOURCE_DIR@/website/@script_source@');
diff --git a/lib/AddressDetails.php b/lib/AddressDetails.php
index a27d3e79..3d17ede5 100644
--- a/lib/AddressDetails.php
+++ b/lib/AddressDetails.php
@@ -2,7 +2,7 @@
 
 namespace Nominatim;
 
-require_once(CONST_BasePath.'/lib/ClassTypes.php');
+require_once(CONST_LibDir.'/ClassTypes.php');
 
 /**
  * Detailed list of address parts for a single result
diff --git a/lib/DB.php b/lib/DB.php
index 38b3e27e..2b53dba8 100644
--- a/lib/DB.php
+++ b/lib/DB.php
@@ -2,7 +2,7 @@
 
 namespace Nominatim;
 
-require_once(CONST_BasePath.'/lib/DatabaseError.php');
+require_once(CONST_LibDir.'/DatabaseError.php');
 
 /**
  * Uses PDO to access the database specified in the CONST_Database_DSN
diff --git a/lib/Geocode.php b/lib/Geocode.php
index ed02848e..57e9510f 100644
--- a/lib/Geocode.php
+++ b/lib/Geocode.php
@@ -2,12 +2,12 @@
 
 namespace Nominatim;
 
-require_once(CONST_BasePath.'/lib/PlaceLookup.php');
-require_once(CONST_BasePath.'/lib/Phrase.php');
-require_once(CONST_BasePath.'/lib/ReverseGeocode.php');
-require_once(CONST_BasePath.'/lib/SearchDescription.php');
-require_once(CONST_BasePath.'/lib/SearchContext.php');
-require_once(CONST_BasePath.'/lib/TokenList.php');
+require_once(CONST_LibDir.'/PlaceLookup.php');
+require_once(CONST_LibDir.'/Phrase.php');
+require_once(CONST_LibDir.'/ReverseGeocode.php');
+require_once(CONST_LibDir.'/SearchDescription.php');
+require_once(CONST_LibDir.'/SearchContext.php');
+require_once(CONST_LibDir.'/TokenList.php');
 
 class Geocode
 {
diff --git a/lib/PlaceLookup.php b/lib/PlaceLookup.php
index a2f39ea3..58510e26 100644
--- a/lib/PlaceLookup.php
+++ b/lib/PlaceLookup.php
@@ -2,8 +2,8 @@
 
 namespace Nominatim;
 
-require_once(CONST_BasePath.'/lib/AddressDetails.php');
-require_once(CONST_BasePath.'/lib/Result.php');
+require_once(CONST_LibDir.'/AddressDetails.php');
+require_once(CONST_LibDir.'/Result.php');
 
 class PlaceLookup
 {
diff --git a/lib/ReverseGeocode.php b/lib/ReverseGeocode.php
index 032f442e..b420e5dd 100644
--- a/lib/ReverseGeocode.php
+++ b/lib/ReverseGeocode.php
@@ -2,7 +2,7 @@
 
 namespace Nominatim;
 
-require_once(CONST_BasePath.'/lib/Result.php');
+require_once(CONST_LibDir.'/Result.php');
 
 class ReverseGeocode
 {
diff --git a/lib/SearchContext.php b/lib/SearchContext.php
index c2898d27..8316a012 100644
--- a/lib/SearchContext.php
+++ b/lib/SearchContext.php
@@ -2,7 +2,7 @@
 
 namespace Nominatim;
 
-require_once(CONST_BasePath.'/lib/lib.php');
+require_once(CONST_LibDir.'/lib.php');
 
 
 /**
diff --git a/lib/SearchDescription.php b/lib/SearchDescription.php
index 15c6bf23..f0106063 100644
--- a/lib/SearchDescription.php
+++ b/lib/SearchDescription.php
@@ -2,9 +2,9 @@
 
 namespace Nominatim;
 
-require_once(CONST_BasePath.'/lib/SpecialSearchOperator.php');
-require_once(CONST_BasePath.'/lib/SearchContext.php');
-require_once(CONST_BasePath.'/lib/Result.php');
+require_once(CONST_LibDir.'/SpecialSearchOperator.php');
+require_once(CONST_LibDir.'/SearchContext.php');
+require_once(CONST_LibDir.'/Result.php');
 
 /**
  * Description of a single interpretation of a search query.
diff --git a/lib/TokenList.php b/lib/TokenList.php
index 1b6a1dcf..a419da6a 100644
--- a/lib/TokenList.php
+++ b/lib/TokenList.php
@@ -2,12 +2,12 @@
 
 namespace Nominatim;
 
-require_once(CONST_BasePath.'/lib/TokenCountry.php');
-require_once(CONST_BasePath.'/lib/TokenHousenumber.php');
-require_once(CONST_BasePath.'/lib/TokenPostcode.php');
-require_once(CONST_BasePath.'/lib/TokenSpecialTerm.php');
-require_once(CONST_BasePath.'/lib/TokenWord.php');
-require_once(CONST_BasePath.'/lib/SpecialSearchOperator.php');
+require_once(CONST_LibDir.'/TokenCountry.php');
+require_once(CONST_LibDir.'/TokenHousenumber.php');
+require_once(CONST_LibDir.'/TokenPostcode.php');
+require_once(CONST_LibDir.'/TokenSpecialTerm.php');
+require_once(CONST_LibDir.'/TokenWord.php');
+require_once(CONST_LibDir.'/SpecialSearchOperator.php');
 
 /**
  * Saves information about the tokens that appear in a search query.
diff --git a/lib/TokenSpecialTerm.php b/lib/TokenSpecialTerm.php
index 64e4b3d4..b2c312ec 100644
--- a/lib/TokenSpecialTerm.php
+++ b/lib/TokenSpecialTerm.php
@@ -2,7 +2,7 @@
 
 namespace Nominatim\Token;
 
-require_once(CONST_BasePath.'/lib/SpecialSearchOperator.php');
+require_once(CONST_LibDir.'/SpecialSearchOperator.php');
 
 /**
  * A word token describing a place type.
diff --git a/lib/cmd.php b/lib/cmd.php
index 72b66608..3eac3e8f 100644
--- a/lib/cmd.php
+++ b/lib/cmd.php
@@ -1,6 +1,6 @@
 <?php
 
-require_once(CONST_BasePath.'/lib/Shell.php');
+require_once(CONST_LibDir.'/Shell.php');
 
 function getCmdOpt($aArg, $aSpec, &$aResult, $bExitOnError = false, $bExitOnUnknown = false)
 {
diff --git a/lib/init-website.php b/lib/init-website.php
index 302a9478..f2d52980 100644
--- a/lib/init-website.php
+++ b/lib/init-website.php
@@ -20,7 +20,7 @@ function exception_handler_json($exception)
 {
     http_response_code($exception->getCode());
     header('Content-type: application/json; charset=utf-8');
-    include(CONST_BasePath.'/lib/template/error-json.php');
+    include(CONST_LibDir.'/template/error-json.php');
     exit();
 }
 
@@ -29,7 +29,7 @@ function exception_handler_xml($exception)
     http_response_code($exception->getCode());
     header('Content-type: text/xml; charset=utf-8');
     echo '<?xml version="1.0" encoding="UTF-8" ?>'."\n";
-    include(CONST_BasePath.'/lib/template/error-xml.php');
+    include(CONST_LibDir.'/template/error-xml.php');
     exit();
 }
 
diff --git a/lib/init.php b/lib/init.php
index 082d1bf5..cc50aaf3 100644
--- a/lib/init.php
+++ b/lib/init.php
@@ -1,4 +1,4 @@
 <?php
 
-require_once(CONST_BasePath.'/lib/lib.php');
-require_once(CONST_BasePath.'/lib/DB.php');
+require_once(CONST_LibDir.'/lib.php');
+require_once(CONST_LibDir.'/DB.php');
diff --git a/lib/setup/SetupClass.php b/lib/setup/SetupClass.php
index f16c9e60..6114689f 100755
--- a/lib/setup/SetupClass.php
+++ b/lib/setup/SetupClass.php
@@ -2,8 +2,8 @@
 
 namespace Nominatim\Setup;
 
-require_once(CONST_BasePath.'/lib/setup/AddressLevelParser.php');
-require_once(CONST_BasePath.'/lib/Shell.php');
+require_once(CONST_LibDir.'/setup/AddressLevelParser.php');
+require_once(CONST_LibDir.'/Shell.php');
 
 class SetupFunctions
 {
@@ -140,24 +140,24 @@ class SetupFunctions
         // Try accessing the C module, so we know early if something is wrong
         checkModulePresence(); // raises exception on failure
 
-        if (!file_exists(CONST_ExtraDataPath.'/country_osm_grid.sql.gz')) {
+        if (!file_exists(CONST_DataDir.'/data/country_osm_grid.sql.gz')) {
             echo 'Error: you need to download the country_osm_grid first:';
-            echo "\n    wget -O ".CONST_ExtraDataPath."/country_osm_grid.sql.gz https://www.nominatim.org/data/country_grid.sql.gz\n";
+            echo "\n    wget -O ".CONST_DataDir."/data/country_osm_grid.sql.gz https://www.nominatim.org/data/country_grid.sql.gz\n";
             exit(1);
         }
-        $this->pgsqlRunScriptFile(CONST_BasePath.'/data/country_name.sql');
-        $this->pgsqlRunScriptFile(CONST_ExtraDataPath.'/country_osm_grid.sql.gz');
-        $this->pgsqlRunScriptFile(CONST_BasePath.'/data/gb_postcode_table.sql');
-        $this->pgsqlRunScriptFile(CONST_BasePath.'/data/us_postcode_table.sql');
+        $this->pgsqlRunScriptFile(CONST_DataDir.'/data/country_name.sql');
+        $this->pgsqlRunScriptFile(CONST_DataDir.'/data/country_osm_grid.sql.gz');
+        $this->pgsqlRunScriptFile(CONST_DataDir.'/data/gb_postcode_table.sql');
+        $this->pgsqlRunScriptFile(CONST_DataDir.'/data/us_postcode_table.sql');
 
-        $sPostcodeFilename = CONST_BasePath.'/data/gb_postcode_data.sql.gz';
+        $sPostcodeFilename = CONST_DataDir.'/data/gb_postcode_data.sql.gz';
         if (file_exists($sPostcodeFilename)) {
             $this->pgsqlRunScriptFile($sPostcodeFilename);
         } else {
             warn('optional external GB postcode table file ('.$sPostcodeFilename.') not found. Skipping.');
         }
 
-        $sPostcodeFilename = CONST_BasePath.'/data/us_postcode_data.sql.gz';
+        $sPostcodeFilename = CONST_DataDir.'/data/us_postcode_data.sql.gz';
         if (file_exists($sPostcodeFilename)) {
             $this->pgsqlRunScriptFile($sPostcodeFilename);
         } else {
@@ -243,7 +243,7 @@ class SetupFunctions
     {
         info('Create Tables');
 
-        $sTemplate = file_get_contents(CONST_BasePath.'/sql/tables.sql');
+        $sTemplate = file_get_contents(CONST_DataDir.'/sql/tables.sql');
         $sTemplate = $this->replaceSqlPatterns($sTemplate);
 
         $this->pgsqlRunScript($sTemplate, false);
@@ -260,7 +260,7 @@ class SetupFunctions
     {
         info('Create Tables');
 
-        $sTemplate = file_get_contents(CONST_BasePath.'/sql/table-triggers.sql');
+        $sTemplate = file_get_contents(CONST_DataDir.'/sql/table-triggers.sql');
         $sTemplate = $this->replaceSqlPatterns($sTemplate);
 
         $this->pgsqlRunScript($sTemplate, false);
@@ -270,7 +270,7 @@ class SetupFunctions
     {
         info('Create Partition Tables');
 
-        $sTemplate = file_get_contents(CONST_BasePath.'/sql/partition-tables.src.sql');
+        $sTemplate = file_get_contents(CONST_DataDir.'/sql/partition-tables.src.sql');
         $sTemplate = $this->replaceSqlPatterns($sTemplate);
 
         $this->pgsqlRunPartitionScript($sTemplate);
@@ -280,7 +280,7 @@ class SetupFunctions
     {
         info('Create Partition Functions');
 
-        $sTemplate = file_get_contents(CONST_BasePath.'/sql/partition-functions.src.sql');
+        $sTemplate = file_get_contents(CONST_DataDir.'/sql/partition-functions.src.sql');
         $this->pgsqlRunPartitionScript($sTemplate);
     }
 
@@ -342,7 +342,7 @@ class SetupFunctions
         // pre-create the word list
         if (!$bDisableTokenPrecalc) {
             info('Loading word list');
-            $this->pgsqlRunScriptFile(CONST_BasePath.'/data/words.sql');
+            $this->pgsqlRunScriptFile(CONST_DataDir.'/data/words.sql');
         }
 
         info('Load Data');
@@ -434,7 +434,7 @@ class SetupFunctions
             warn('Tiger data import selected but no files found in path '.CONST_Tiger_Data_Path);
             return;
         }
-        $sTemplate = file_get_contents(CONST_BasePath.'/sql/tiger_import_start.sql');
+        $sTemplate = file_get_contents(CONST_DataDir.'/sql/tiger_import_start.sql');
         $sTemplate = $this->replaceSqlPatterns($sTemplate);
 
         $this->pgsqlRunScript($sTemplate, false);
@@ -488,7 +488,7 @@ class SetupFunctions
         }
 
         info('Creating indexes on Tiger data');
-        $sTemplate = file_get_contents(CONST_BasePath.'/sql/tiger_import_finish.sql');
+        $sTemplate = file_get_contents(CONST_DataDir.'/sql/tiger_import_finish.sql');
         $sTemplate = $this->replaceSqlPatterns($sTemplate);
 
         $this->pgsqlRunScript($sTemplate, false);
@@ -544,7 +544,7 @@ class SetupFunctions
     {
         checkModulePresence(); // raises exception on failure
 
-        $oBaseCmd = (new \Nominatim\Shell(CONST_BasePath.'/nominatim/nominatim.py'))
+        $oBaseCmd = (new \Nominatim\Shell(CONST_DataDir.'/nominatim/nominatim.py'))
                     ->addParams('--database', $this->aDSNInfo['database'])
                     ->addParams('--port', $this->aDSNInfo['port'])
                     ->addParams('--threads', $this->iInstances);
@@ -616,12 +616,12 @@ class SetupFunctions
             $this->db()->exec("DROP INDEX $sIndexName;");
         }
 
-        $sTemplate = file_get_contents(CONST_BasePath.'/sql/indices.src.sql');
+        $sTemplate = file_get_contents(CONST_DataDir.'/sql/indices.src.sql');
         if (!$this->bDrop) {
-            $sTemplate .= file_get_contents(CONST_BasePath.'/sql/indices_updates.src.sql');
+            $sTemplate .= file_get_contents(CONST_DataDir.'/sql/indices_updates.src.sql');
         }
         if (!$this->dbReverseOnly()) {
-            $sTemplate .= file_get_contents(CONST_BasePath.'/sql/indices_search.src.sql');
+            $sTemplate .= file_get_contents(CONST_DataDir.'/sql/indices_search.src.sql');
         }
         $sTemplate = $this->replaceSqlPatterns($sTemplate);
 
@@ -709,10 +709,9 @@ class SetupFunctions
      */
     public function setupWebsite()
     {
-        $rOutputFile = fopen(CONST_InstallPath.'/settings/settings-frontend.php', 'w');
+        $rOutputFile = fopen(CONST_InstallDir.'/settings/settings-frontend.php', 'w');
 
         fwrite($rOutputFile, "<?php
-@define('CONST_BasePath', '".CONST_BasePath."');
 if (file_exists(getenv('NOMINATIM_SETTINGS'))) require_once(getenv('NOMINATIM_SETTINGS'));
 
 @define('CONST_Database_DSN', '".CONST_Database_DSN."');
@@ -732,7 +731,7 @@ if (file_exists(getenv('NOMINATIM_SETTINGS'))) require_once(getenv('NOMINATIM_SE
 @define('CONST_Use_US_Tiger_Data', ".(CONST_Use_US_Tiger_Data ? 'true' : 'false').");
 @define('CONST_MapIcon_URL', ".(CONST_MapIcon_URL ? ("'".CONST_MapIcon_URL."'") : 'false').');
 ');
-        info(CONST_InstallPath.'/settings/settings-frontend.php has been set up successfully');
+        info(CONST_InstallDir.'/settings/settings-frontend.php has been set up successfully');
     }
 
     /**
@@ -775,7 +774,7 @@ if (file_exists(getenv('NOMINATIM_SETTINGS'))) require_once(getenv('NOMINATIM_SE
 
     private function createSqlFunctions()
     {
-        $sBasePath = CONST_BasePath.'/sql/functions/';
+        $sBasePath = CONST_DataDir.'/sql/functions/';
         $sTemplate = file_get_contents($sBasePath.'utils.sql');
         $sTemplate .= file_get_contents($sBasePath.'normalization.sql');
         $sTemplate .= file_get_contents($sBasePath.'ranking.sql');
diff --git a/settings/defaults.php b/settings/defaults.php
index 2ecbb514..49c2d217 100644
--- a/settings/defaults.php
+++ b/settings/defaults.php
@@ -1,13 +1,11 @@
 <?php
-@define('CONST_BasePath', '@CMAKE_SOURCE_DIR@');
-@define('CONST_InstallPath', '@CMAKE_BINARY_DIR@');
 if (file_exists(getenv('NOMINATIM_SETTINGS'))) require_once(getenv('NOMINATIM_SETTINGS'));
-if (file_exists(CONST_InstallPath.'/settings/local.php')) require_once(CONST_InstallPath.'/settings/local.php');
+if (file_exists(CONST_InstallDir.'/settings/local.php')) require_once(CONST_InstallDir.'/settings/local.php');
 
 // General settings
 @define('CONST_Database_DSN', 'pgsql:dbname=nominatim'); // or add ;host=...;port=...;user=...;password=...
 @define('CONST_Database_Web_User', 'www-data');
-@define('CONST_Database_Module_Path', CONST_InstallPath.'/module');
+@define('CONST_Database_Module_Path', CONST_InstallDir.'/module');
 @define('CONST_Max_Word_Frequency', '50000');
 @define('CONST_Limit_Reindexing', true);
 // Restrict search languages.
@@ -40,14 +38,13 @@ if (file_exists(CONST_InstallPath.'/settings/local.php')) require_once(CONST_Ins
 @define('CONST_HTTP_Proxy_Password', '');
 
 // Paths
-@define('CONST_ExtraDataPath', CONST_BasePath.'/data');
-@define('CONST_Osm2pgsql_Binary', CONST_InstallPath.'/osm2pgsql/osm2pgsql');
+@define('CONST_Osm2pgsql_Binary', CONST_InstallDir.'/osm2pgsql/osm2pgsql');
 @define('CONST_Pyosmium_Binary', '@PYOSMIUM_PATH@');
-@define('CONST_Tiger_Data_Path', CONST_ExtraDataPath.'/tiger');
-@define('CONST_Wikipedia_Data_Path', CONST_ExtraDataPath);
-@define('CONST_Phrase_Config', CONST_BasePath.'/settings/phrase_settings.php');
-@define('CONST_Address_Level_Config', CONST_BasePath.'/settings/address-levels.json');
-@define('CONST_Import_Style', CONST_BasePath.'/settings/import-full.style');
+@define('CONST_Tiger_Data_Path', CONST_DataDir.'/data/tiger');
+@define('CONST_Wikipedia_Data_Path', CONST_DataDir);
+@define('CONST_Phrase_Config', CONST_DataDir.'/settings/phrase_settings.php');
+@define('CONST_Address_Level_Config', CONST_DataDir.'/settings/address-levels.json');
+@define('CONST_Import_Style', CONST_DataDir.'/settings/import-full.style');
 
 // osm2pgsql settings
 @define('CONST_Osm2pgsql_Flatnode_File', null);
diff --git a/test/bdd/environment.py b/test/bdd/environment.py
index f0658c33..ba18ef03 100644
--- a/test/bdd/environment.py
+++ b/test/bdd/environment.py
@@ -82,7 +82,8 @@ class NominatimEnvironment(object):
                  (';password=' + self.db_pass) if self.db_pass else ''
                  ))
         f.write("@define('CONST_Osm2pgsql_Flatnode_File', null);\n")
-        f.write("@define('CONST_Import_Style', CONST_BasePath.'/settings/import-full.style');\n")
+        f.write("@define('CONST_Import_Style', CONST_DataDir.'/settings/import-full.style');\n")
+        f.write("@define('CONST_Use_US_Tiger_Data', true);\n")
         f.close()
 
     def cleanup(self):
diff --git a/utils/check_import_finished.php b/utils/check_import_finished.php
index 5ec99b81..1eb012d4 100755
--- a/utils/check_import_finished.php
+++ b/utils/check_import_finished.php
@@ -1,6 +1,6 @@
 <?php
 
-require_once(CONST_BasePath.'/lib/init-cmd.php');
+require_once(CONST_LibDir.'/init-cmd.php');
 
 $term_colors = array(
                 'green' => "\033[92m",
diff --git a/utils/country_languages.php b/utils/country_languages.php
index 63f6525c..c9aa391b 100644
--- a/utils/country_languages.php
+++ b/utils/country_languages.php
@@ -1,6 +1,6 @@
 <?php
 
-require_once(CONST_BasePath.'/lib/init-cmd.php');
+require_once(CONST_LibDir.'/init-cmd.php');
 
 ini_set('memory_limit', '800M');
 ini_set('display_errors', 'stderr');
diff --git a/utils/export.php b/utils/export.php
index ef55aab2..3cf9c651 100644
--- a/utils/export.php
+++ b/utils/export.php
@@ -3,8 +3,8 @@
     // from a running nominatim instance as CSV data
 
 
-    require_once(CONST_BasePath.'/lib/init-cmd.php');
-    require_once(CONST_BasePath.'/lib/ParameterParser.php');
+    require_once(CONST_LibDir.'/init-cmd.php');
+    require_once(CONST_LibDir.'/ParameterParser.php');
     ini_set('memory_limit', '800M');
 
     $aCMDOptions = array(
diff --git a/utils/query.php b/utils/query.php
index 6068c7c0..aa7361ab 100644
--- a/utils/query.php
+++ b/utils/query.php
@@ -1,8 +1,8 @@
 <?php
 
-require_once(CONST_BasePath.'/lib/init-cmd.php');
-require_once(CONST_BasePath.'/lib/Geocode.php');
-require_once(CONST_BasePath.'/lib/ParameterParser.php');
+require_once(CONST_LibDir.'/init-cmd.php');
+require_once(CONST_LibDir.'/Geocode.php');
+require_once(CONST_LibDir.'/ParameterParser.php');
 ini_set('memory_limit', '800M');
 
 $aCMDOptions
diff --git a/utils/setup.php b/utils/setup.php
index 7f476d5c..82c821eb 100644
--- a/utils/setup.php
+++ b/utils/setup.php
@@ -1,8 +1,8 @@
 <?php
 
-require_once(CONST_BasePath.'/lib/init-cmd.php');
-require_once(CONST_BasePath.'/lib/setup/SetupClass.php');
-require_once(CONST_BasePath.'/lib/setup_functions.php');
+require_once(CONST_LibDir.'/init-cmd.php');
+require_once(CONST_LibDir.'/setup/SetupClass.php');
+require_once(CONST_LibDir.'/setup_functions.php');
 ini_set('memory_limit', '800M');
 
 use Nominatim\Setup\SetupFunctions as SetupFunctions;
diff --git a/utils/specialphrases.php b/utils/specialphrases.php
index 9e6c9d76..d6979d58 100644
--- a/utils/specialphrases.php
+++ b/utils/specialphrases.php
@@ -1,6 +1,6 @@
 <?php
 
-require_once(CONST_BasePath.'/lib/init-cmd.php');
+require_once(CONST_LibDir.'/init-cmd.php');
 ini_set('memory_limit', '800M');
 ini_set('display_errors', 'stderr');
 
diff --git a/utils/update.php b/utils/update.php
index 135bf193..7e020b42 100644
--- a/utils/update.php
+++ b/utils/update.php
@@ -1,9 +1,9 @@
 <?php
 
-require_once(CONST_BasePath.'/lib/init-cmd.php');
-require_once(CONST_BasePath.'/lib/setup_functions.php');
-require_once(CONST_BasePath.'/lib/setup/SetupClass.php');
-require_once(CONST_BasePath.'/lib/setup/AddressLevelParser.php');
+require_once(CONST_LibDir.'/init-cmd.php');
+require_once(CONST_LibDir.'/setup_functions.php');
+require_once(CONST_LibDir.'/setup/SetupClass.php');
+require_once(CONST_LibDir.'/setup/AddressLevelParser.php');
 
 ini_set('memory_limit', '800M');
 
@@ -99,7 +99,7 @@ if ($fPostgresVersion >= 11.0) {
 }
 
 
-$oIndexCmd = (new \Nominatim\Shell(CONST_BasePath.'/nominatim/nominatim.py'))
+$oIndexCmd = (new \Nominatim\Shell(CONST_DataDir.'/nominatim/nominatim.py'))
              ->addParams('--database', $aDSNInfo['database'])
              ->addParams('--port', $aDSNInfo['port'])
              ->addParams('--threads', $aResult['index-instances']);
@@ -193,7 +193,7 @@ if ($aResult['check-for-updates']) {
         fail('Updates not set up. Please run ./utils/update.php --init-updates.');
     }
 
-    $oCmd = (new \Nominatim\Shell(CONST_BasePath.'/utils/check_server_for_updates.py'))
+    $oCmd = (new \Nominatim\Shell(CONST_BinDir.'/check_server_for_updates.py'))
             ->addParams(CONST_Replication_Url)
             ->addParams($aLastState['sequence_id']);
     $iRet = $oCmd->run();
@@ -223,11 +223,11 @@ if (isset($aResult['import-diff']) || isset($aResult['import-file'])) {
 
 if ($aResult['calculate-postcodes']) {
     info('Update postcodes centroids');
-    $sTemplate = file_get_contents(CONST_BasePath.'/sql/update-postcodes.sql');
+    $sTemplate = file_get_contents(CONST_DataDir.'/sql/update-postcodes.sql');
     runSQLScript($sTemplate, true, true);
 }
 
-$sTemporaryFile = CONST_BasePath.'/data/osmosischange.osc';
+$sTemporaryFile = CONST_InstallDir.'/osmosischange.osc';
 $bHaveDiff = false;
 $bUseOSMApi = isset($aResult['import-from-main-api']) && $aResult['import-from-main-api'];
 $sContentURL = '';
@@ -274,7 +274,7 @@ if ($bHaveDiff) {
 
 if ($aResult['recompute-word-counts']) {
     info('Recompute frequency of full-word search terms');
-    $sTemplate = file_get_contents(CONST_BasePath.'/sql/words_from_search_name.sql');
+    $sTemplate = file_get_contents(CONST_DataDir.'/sql/words_from_search_name.sql');
     runSQLScript($sTemplate, true, true);
 }
 
@@ -320,7 +320,7 @@ if ($aResult['import-osmosis'] || $aResult['import-osmosis-all']) {
              "Please check install documentation (https://nominatim.org/release-docs/latest/admin/Import-and-Update#setting-up-the-update-process)\n");
     }
 
-    $sImportFile = CONST_InstallPath.'/osmosischange.osc';
+    $sImportFile = CONST_InstallDir.'/osmosischange.osc';
 
     $oCMDDownload = (new \Nominatim\Shell(CONST_Pyosmium_Binary))
                     ->addParams('--server', CONST_Replication_Url)
@@ -379,7 +379,7 @@ if ($aResult['import-osmosis'] || $aResult['import-osmosis-all']) {
             // get the newest object from the diff file
             $sBatchEnd = 0;
             $iRet = 0;
-            $oCMD = new \Nominatim\Shell(CONST_BasePath.'/utils/osm_file_date.py', $sImportFile);
+            $oCMD = new \Nominatim\Shell(CONST_BinDir.'/osm_file_date.py', $sImportFile);
             exec($oCMD->escapedCmd(), $sBatchEnd, $iRet);
             if ($iRet == 5) {
                 echo "Diff file is empty. skipping import.\n";
diff --git a/utils/warm.php b/utils/warm.php
index 5476eae0..f86e0dd5 100644
--- a/utils/warm.php
+++ b/utils/warm.php
@@ -1,6 +1,6 @@
 <?php
 
-require_once(CONST_BasePath.'/lib/init-cmd.php');
+require_once(CONST_LibDir.'/init-cmd.php');
 ini_set('memory_limit', '800M');
 
 $aCMDOptions = array(
@@ -13,10 +13,10 @@ $aCMDOptions = array(
                );
 getCmdOpt($_SERVER['argv'], $aCMDOptions, $aResult, true, true);
 
-require_once(CONST_BasePath.'/lib/log.php');
-require_once(CONST_BasePath.'/lib/Geocode.php');
-require_once(CONST_BasePath.'/lib/PlaceLookup.php');
-require_once(CONST_BasePath.'/lib/ReverseGeocode.php');
+require_once(CONST_LibDir.'/log.php');
+require_once(CONST_LibDir.'/Geocode.php');
+require_once(CONST_LibDir.'/PlaceLookup.php');
+require_once(CONST_LibDir.'/ReverseGeocode.php');
 
 $oDB = new Nominatim\DB();
 $oDB->connect();
diff --git a/website/deletable.php b/website/deletable.php
index 2028cbdd..9a0ea0d8 100644
--- a/website/deletable.php
+++ b/website/deletable.php
@@ -1,8 +1,8 @@
 <?php
 
-require_once(CONST_BasePath.'/lib/init-website.php');
-require_once(CONST_BasePath.'/lib/log.php');
-require_once(CONST_BasePath.'/lib/output.php');
+require_once(CONST_LibDir.'/init-website.php');
+require_once(CONST_LibDir.'/log.php');
+require_once(CONST_LibDir.'/output.php');
 ini_set('memory_limit', '200M');
 
 $oParams = new Nominatim\ParameterParser();
diff --git a/website/details.php b/website/details.php
index 77e74969..2f91b2bb 100644
--- a/website/details.php
+++ b/website/details.php
@@ -1,9 +1,9 @@
 <?php
 
-require_once(CONST_BasePath.'/lib/init-website.php');
-require_once(CONST_BasePath.'/lib/log.php');
-require_once(CONST_BasePath.'/lib/output.php');
-require_once(CONST_BasePath.'/lib/AddressDetails.php');
+require_once(CONST_LibDir.'/init-website.php');
+require_once(CONST_LibDir.'/log.php');
+require_once(CONST_LibDir.'/output.php');
+require_once(CONST_LibDir.'/AddressDetails.php');
 ini_set('memory_limit', '200M');
 
 $oParams = new Nominatim\ParameterParser();
@@ -77,7 +77,7 @@ if ($sOsmType && $iOsmId > 0) {
                 $aPointDetails['error_x'] = 0;
                 $aPointDetails['error_y'] = 0;
             }
-            include(CONST_BasePath.'/lib/template/details-error-'.$sOutputFormat.'.php');
+            include(CONST_LibDir.'/template/details-error-'.$sOutputFormat.'.php');
             exit;
         }
     }
@@ -247,4 +247,4 @@ if ($bIncludeKeywords) {
 
 logEnd($oDB, $hLog, 1);
 
-include(CONST_BasePath.'/lib/template/details-'.$sOutputFormat.'.php');
+include(CONST_LibDir.'/template/details-'.$sOutputFormat.'.php');
diff --git a/website/lookup.php b/website/lookup.php
index db2c01d6..e4a98939 100644
--- a/website/lookup.php
+++ b/website/lookup.php
@@ -1,9 +1,9 @@
 <?php
 
-require_once(CONST_BasePath.'/lib/init-website.php');
-require_once(CONST_BasePath.'/lib/log.php');
-require_once(CONST_BasePath.'/lib/PlaceLookup.php');
-require_once(CONST_BasePath.'/lib/output.php');
+require_once(CONST_LibDir.'/init-website.php');
+require_once(CONST_LibDir.'/log.php');
+require_once(CONST_LibDir.'/PlaceLookup.php');
+require_once(CONST_LibDir.'/output.php');
 ini_set('memory_limit', '200M');
 
 $oParams = new Nominatim\ParameterParser();
@@ -84,4 +84,4 @@ $sMoreURL = '';
 logEnd($oDB, $hLog, 1);
 
 $sOutputTemplate = ($sOutputFormat == 'jsonv2') ? 'json' : $sOutputFormat;
-include(CONST_BasePath.'/lib/template/search-'.$sOutputTemplate.'.php');
+include(CONST_LibDir.'/template/search-'.$sOutputTemplate.'.php');
diff --git a/website/polygons.php b/website/polygons.php
index 9c657a1d..418bec09 100644
--- a/website/polygons.php
+++ b/website/polygons.php
@@ -1,8 +1,8 @@
 <?php
 
-require_once(CONST_BasePath.'/lib/init-website.php');
-require_once(CONST_BasePath.'/lib/log.php');
-require_once(CONST_BasePath.'/lib/output.php');
+require_once(CONST_LibDir.'/init-website.php');
+require_once(CONST_LibDir.'/log.php');
+require_once(CONST_LibDir.'/output.php');
 ini_set('memory_limit', '200M');
 
 $oParams = new Nominatim\ParameterParser();
diff --git a/website/reverse.php b/website/reverse.php
index 640ea2ab..556808c1 100644
--- a/website/reverse.php
+++ b/website/reverse.php
@@ -1,10 +1,10 @@
 <?php
 
-require_once(CONST_BasePath.'/lib/init-website.php');
-require_once(CONST_BasePath.'/lib/log.php');
-require_once(CONST_BasePath.'/lib/PlaceLookup.php');
-require_once(CONST_BasePath.'/lib/ReverseGeocode.php');
-require_once(CONST_BasePath.'/lib/output.php');
+require_once(CONST_LibDir.'/init-website.php');
+require_once(CONST_LibDir.'/log.php');
+require_once(CONST_LibDir.'/PlaceLookup.php');
+require_once(CONST_LibDir.'/ReverseGeocode.php');
+require_once(CONST_LibDir.'/output.php');
 ini_set('memory_limit', '200M');
 
 $oParams = new Nominatim\ParameterParser();
@@ -84,4 +84,4 @@ if ($sOutputFormat == 'geocodejson') {
 }
 
 $sOutputTemplate = ($sOutputFormat == 'jsonv2') ? 'json' : $sOutputFormat;
-include(CONST_BasePath.'/lib/template/address-'.$sOutputTemplate.'.php');
+include(CONST_LibDir.'/template/address-'.$sOutputTemplate.'.php');
diff --git a/website/search.php b/website/search.php
index 43c9fd01..05d0e444 100644
--- a/website/search.php
+++ b/website/search.php
@@ -1,9 +1,9 @@
 <?php
 
-require_once(CONST_BasePath.'/lib/init-website.php');
-require_once(CONST_BasePath.'/lib/log.php');
-require_once(CONST_BasePath.'/lib/Geocode.php');
-require_once(CONST_BasePath.'/lib/output.php');
+require_once(CONST_LibDir.'/init-website.php');
+require_once(CONST_LibDir.'/log.php');
+require_once(CONST_LibDir.'/Geocode.php');
+require_once(CONST_LibDir.'/output.php');
 ini_set('memory_limit', '200M');
 
 $oDB = new Nominatim\DB();
@@ -41,7 +41,7 @@ if (CONST_Search_BatchMode && isset($_GET['batch'])) {
         $aSearchResults = $oBatchGeocode->lookup();
         $aBatchResults[] = $aSearchResults;
     }
-    include(CONST_BasePath.'/lib/template/search-batch-json.php');
+    include(CONST_LibDir.'/template/search-batch-json.php');
     exit;
 }
 
@@ -89,4 +89,4 @@ if (isset($_SERVER['REQUEST_SCHEME'])
 if (CONST_Debug) exit;
 
 $sOutputTemplate = ($sOutputFormat == 'jsonv2') ? 'json' : $sOutputFormat;
-include(CONST_BasePath.'/lib/template/search-'.$sOutputTemplate.'.php');
+include(CONST_LibDir.'/template/search-'.$sOutputTemplate.'.php');
diff --git a/website/status.php b/website/status.php
index 0d483544..dc497ff5 100644
--- a/website/status.php
+++ b/website/status.php
@@ -1,8 +1,8 @@
 <?php
 
-require_once(CONST_BasePath.'/lib/init-website.php');
-require_once(CONST_BasePath.'/lib/ParameterParser.php');
-require_once(CONST_BasePath.'/lib/Status.php');
+require_once(CONST_LibDir.'/init-website.php');
+require_once(CONST_LibDir.'/ParameterParser.php');
+require_once(CONST_LibDir.'/Status.php');
 
 $oParams = new Nominatim\ParameterParser();
 $sOutputFormat = $oParams->getSet('format', array('text', 'json'), 'text');