diff --git a/libraries/utilities/CMakeLists.txt b/libraries/utilities/CMakeLists.txt
index f018afff..124ed673 100644
--- a/libraries/utilities/CMakeLists.txt
+++ b/libraries/utilities/CMakeLists.txt
@@ -9,9 +9,12 @@ endif(NOT GRAPHENE_GIT_REVISION_DESCRIPTION)
 
 file(GLOB headers "include/graphene/utilities/*.hpp")
 
-set(sources key_conversion.cpp string_escape.cpp
-            words.cpp
-            ${headers})
+set(sources
+   key_conversion.cpp
+   string_escape.cpp
+   tempdir.cpp
+   words.cpp
+   ${headers})
 
 configure_file("${CMAKE_CURRENT_SOURCE_DIR}/git_revision.cpp.in" "${CMAKE_CURRENT_BINARY_DIR}/git_revision.cpp" @ONLY)
 list(APPEND sources "${CMAKE_CURRENT_BINARY_DIR}/git_revision.cpp")
diff --git a/libraries/utilities/include/graphene/utilities/tempdir.hpp b/libraries/utilities/include/graphene/utilities/tempdir.hpp
new file mode 100644
index 00000000..600f6fa9
--- /dev/null
+++ b/libraries/utilities/include/graphene/utilities/tempdir.hpp
@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2015, Cryptonomex, Inc.
+ * All rights reserved.
+ *
+ * This source code is provided for evaluation in private test networks only, until September 8, 2015. After this date, this license expires and
+ * the code may not be used, modified or distributed for any purpose. Redistribution and use in source and binary forms, with or without modification,
+ * are permitted until September 8, 2015, provided that the following conditions are met:
+ *
+ * 1. The code and/or derivative works are used only for private test networks consisting of no more than 10 P2P nodes.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#pragma once
+
+#include <cstdlib>
+
+#include <fc/filesystem.hpp>
+
+namespace graphene { namespace utilities {
+
+fc::path temp_directory_path();
+
+} } // graphene::utilities
diff --git a/libraries/utilities/tempdir.cpp b/libraries/utilities/tempdir.cpp
new file mode 100644
index 00000000..2076151d
--- /dev/null
+++ b/libraries/utilities/tempdir.cpp
@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2015, Cryptonomex, Inc.
+ * All rights reserved.
+ *
+ * This source code is provided for evaluation in private test networks only, until September 8, 2015. After this date, this license expires and
+ * the code may not be used, modified or distributed for any purpose. Redistribution and use in source and binary forms, with or without modification,
+ * are permitted until September 8, 2015, provided that the following conditions are met:
+ *
+ * 1. The code and/or derivative works are used only for private test networks consisting of no more than 10 P2P nodes.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <graphene/utilities/tempdir.hpp>
+
+#include <cstdlib>
+
+namespace graphene { namespace utilities {
+
+fc::path temp_directory_path()
+{
+   const char* graphene_tempdir = getenv("GRAPHENE_TEMPDIR");
+   if( graphene_tempdir != nullptr )
+      return fc::path( graphene_tempdir );
+   return fc::temp_directory_path() / "graphene-tmp";
+}
+
+} } // graphene::utilities
diff --git a/tests/app/main.cpp b/tests/app/main.cpp
index 6febbfd7..c4d05708 100644
--- a/tests/app/main.cpp
+++ b/tests/app/main.cpp
@@ -20,6 +20,8 @@
 
 #include <graphene/time/time.hpp>
 
+#include <graphene/utilities/tempdir.hpp>
+
 #include <graphene/account_history/account_history_plugin.hpp>
 
 #include <fc/thread/thread.hpp>
@@ -36,8 +38,8 @@ BOOST_AUTO_TEST_CASE( two_node_network )
    using namespace graphene::chain;
    using namespace graphene::app;
    try {
-      fc::temp_directory app_dir;
-      fc::temp_directory app2_dir;
+      fc::temp_directory app_dir( graphene::utilities::temp_directory_path() );
+      fc::temp_directory app2_dir( graphene::utilities::temp_directory_path() );
       fc::temp_file genesis_json;
 
       // TODO: Time should be read from the blockchain
diff --git a/tests/benchmarks/genesis_allocation.cpp b/tests/benchmarks/genesis_allocation.cpp
index fc842719..3e2b4882 100644
--- a/tests/benchmarks/genesis_allocation.cpp
+++ b/tests/benchmarks/genesis_allocation.cpp
@@ -17,6 +17,7 @@
  */
 #include <graphene/chain/database.hpp>
 #include <graphene/chain/account_object.hpp>
+#include <graphene/utilities/tempdir.hpp>
 
 #include <graphene/time/time.hpp>
 
@@ -58,7 +59,7 @@ BOOST_AUTO_TEST_CASE( genesis_and_persistence_bench )
          genesis_state.initial_accounts.emplace_back("target"+fc::to_string(i),
                                                      public_key_type(fc::ecc::private_key::regenerate(fc::digest(i)).get_public_key()));
 
-      fc::temp_directory data_dir(fc::current_path());
+      fc::temp_directory data_dir( graphene::utilities::temp_directory_path() );
 
       {
          database db;
diff --git a/tests/common/database_fixture.cpp b/tests/common/database_fixture.cpp
index 62700820..c748af9c 100644
--- a/tests/common/database_fixture.cpp
+++ b/tests/common/database_fixture.cpp
@@ -30,6 +30,8 @@
 #include <graphene/chain/vesting_balance_object.hpp>
 #include <graphene/chain/witness_object.hpp>
 
+#include <graphene/utilities/tempdir.hpp>
+
 #include <fc/crypto/digest.hpp>
 #include <fc/smart_ref_impl.hpp>
 
@@ -285,7 +287,7 @@ void database_fixture::verify_account_history_plugin_index( )const
 void database_fixture::open_database()
 {
    if( !data_dir ) {
-      data_dir = fc::temp_directory();
+      data_dir = fc::temp_directory( graphene::utilities::temp_directory_path() );
       db.open(data_dir->path(), [this]{return genesis_state;});
    }
 }
diff --git a/tests/tests/block_tests.cpp b/tests/tests/block_tests.cpp
index 03b243e2..3a70d28c 100644
--- a/tests/tests/block_tests.cpp
+++ b/tests/tests/block_tests.cpp
@@ -26,6 +26,8 @@
 #include <graphene/chain/market_evaluator.hpp>
 #include <graphene/chain/witness_schedule_object.hpp>
 
+#include <graphene/utilities/tempdir.hpp>
+
 #include <fc/crypto/digest.hpp>
 
 #include "../common/database_fixture.hpp"
@@ -58,7 +60,7 @@ BOOST_AUTO_TEST_SUITE(block_tests)
 BOOST_AUTO_TEST_CASE( block_database_test )
 {
    try {
-      fc::temp_directory data_dir;
+      fc::temp_directory data_dir( graphene::utilities::temp_directory_path() );
 
       block_database bdb;
       bdb.open( data_dir.path() );
@@ -119,7 +121,7 @@ BOOST_AUTO_TEST_CASE( generate_empty_blocks )
 {
    try {
       fc::time_point_sec now( GRAPHENE_TESTING_GENESIS_TIMESTAMP );
-      fc::temp_directory data_dir;
+      fc::temp_directory data_dir( graphene::utilities::temp_directory_path() );
       signed_block b;
 
       now += GRAPHENE_DEFAULT_BLOCK_INTERVAL;
@@ -166,7 +168,7 @@ BOOST_AUTO_TEST_CASE( generate_empty_blocks )
 BOOST_AUTO_TEST_CASE( undo_block )
 {
    try {
-      fc::temp_directory data_dir;
+      fc::temp_directory data_dir( graphene::utilities::temp_directory_path() );
       {
          database db;
          db.open(data_dir.path(), make_genesis);
@@ -204,8 +206,8 @@ BOOST_AUTO_TEST_CASE( undo_block )
 BOOST_AUTO_TEST_CASE( fork_blocks )
 {
    try {
-      fc::temp_directory data_dir1;
-      fc::temp_directory data_dir2;
+      fc::temp_directory data_dir1( graphene::utilities::temp_directory_path() );
+      fc::temp_directory data_dir2( graphene::utilities::temp_directory_path() );
       fc::time_point_sec now( GRAPHENE_TESTING_GENESIS_TIMESTAMP );
 
       database db1;
@@ -271,7 +273,7 @@ BOOST_AUTO_TEST_CASE( undo_pending )
 {
    try {
       fc::time_point_sec now(GRAPHENE_TESTING_GENESIS_TIMESTAMP);
-      fc::temp_directory data_dir;
+      fc::temp_directory data_dir( graphene::utilities::temp_directory_path() );
       {
          database db;
          db.open(data_dir.path(), make_genesis);
@@ -335,8 +337,8 @@ BOOST_AUTO_TEST_CASE( undo_pending )
 BOOST_AUTO_TEST_CASE( switch_forks_undo_create )
 {
    try {
-      fc::temp_directory dir1,
-                         dir2;
+      fc::temp_directory dir1( graphene::utilities::temp_directory_path() ),
+                         dir2( graphene::utilities::temp_directory_path() );
       database db1,
                db2;
       db1.open(dir1.path(), make_genesis);
@@ -393,8 +395,8 @@ BOOST_AUTO_TEST_CASE( duplicate_transactions )
 {
    try {
       fc::time_point_sec now( GRAPHENE_TESTING_GENESIS_TIMESTAMP );
-      fc::temp_directory dir1,
-                         dir2;
+      fc::temp_directory dir1( graphene::utilities::temp_directory_path() ),
+                         dir2( graphene::utilities::temp_directory_path() );
       database db1,
                db2;
       db1.open(dir1.path(), make_genesis);
@@ -445,8 +447,8 @@ BOOST_AUTO_TEST_CASE( tapos )
 {
    try {
       fc::time_point_sec now( GRAPHENE_TESTING_GENESIS_TIMESTAMP );
-      fc::temp_directory dir1,
-                         dir2;
+      fc::temp_directory dir1( graphene::utilities::temp_directory_path() ),
+                         dir2( graphene::utilities::temp_directory_path() );
       database db1,
                db2;
       db1.open(dir1.path(), make_genesis);
diff --git a/tests/tests/operation_tests2.cpp b/tests/tests/operation_tests2.cpp
index 82cb5675..f5561ffb 100644
--- a/tests/tests/operation_tests2.cpp
+++ b/tests/tests/operation_tests2.cpp
@@ -19,6 +19,8 @@
 #include <boost/test/unit_test.hpp>
 
 #include <graphene/chain/database.hpp>
+#include <graphene/chain/exceptions.hpp>
+
 #include <graphene/chain/asset_object.hpp>
 #include <graphene/chain/account_object.hpp>
 #include <graphene/chain/balance_object.hpp>
@@ -28,7 +30,8 @@
 #include <graphene/chain/worker_evaluator.hpp>
 #include <graphene/chain/vesting_balance_object.hpp>
 #include <graphene/chain/withdraw_permission_object.hpp>
-#include <graphene/chain/exceptions.hpp>
+
+#include <graphene/utilities/tempdir.hpp>
 
 #include <fc/crypto/digest.hpp>
 
@@ -970,7 +973,7 @@ BOOST_AUTO_TEST_CASE( balance_object_test )
 { try {
    // Intentionally overriding the fixture's db; I need to control genesis on this one.
    database db;
-   fc::temp_directory td;
+   fc::temp_directory td( graphene::utilities::temp_directory_path() );
    genesis_state.initial_balances.push_back({generate_private_key("n").get_public_key(), GRAPHENE_SYMBOL, 1});
    genesis_state.initial_balances.push_back({generate_private_key("x").get_public_key(), GRAPHENE_SYMBOL, 1});
    auto starting_time = time_point_sec((time_point::now().sec_since_epoch() / GRAPHENE_DEFAULT_BLOCK_INTERVAL + 1) *