diff --git a/builtin/providers/azurerm/import_arm_subnet_test.go b/builtin/providers/azurerm/import_arm_subnet_test.go
index 90cf28fe5..8384d8b3f 100644
--- a/builtin/providers/azurerm/import_arm_subnet_test.go
+++ b/builtin/providers/azurerm/import_arm_subnet_test.go
@@ -12,7 +12,7 @@ func TestAccAzureRMSubnet_importBasic(t *testing.T) {
 	resourceName := "azurerm_subnet.test"
 
 	ri := acctest.RandInt()
-	config := fmt.Sprintf(testAccAzureRMSubnet_basic, ri, ri, ri)
+	config := fmt.Sprintf(testAccAzureRMSubnet_basic, ri, ri, ri, ri, ri)
 
 	resource.Test(t, resource.TestCase{
 		PreCheck:     func() { testAccPreCheck(t) },
diff --git a/builtin/providers/azurerm/resource_arm_subnet.go b/builtin/providers/azurerm/resource_arm_subnet.go
index 65df4f447..f91dd85b4 100644
--- a/builtin/providers/azurerm/resource_arm_subnet.go
+++ b/builtin/providers/azurerm/resource_arm_subnet.go
@@ -104,6 +104,14 @@ func resourceArmSubnetCreate(d *schema.ResourceData, meta interface{}) error {
 		properties.RouteTable = &network.RouteTable{
 			ID: &rtId,
 		}
+
+		routeTableName, err := parseRouteTableName(rtId)
+		if err != nil {
+			return err
+		}
+
+		armMutexKV.Lock(routeTableName)
+		defer armMutexKV.Unlock(routeTableName)
 	}
 
 	subnet := network.Subnet{
@@ -201,6 +209,17 @@ func resourceArmSubnetDelete(d *schema.ResourceData, meta interface{}) error {
 		defer armMutexKV.Unlock(networkSecurityGroupName)
 	}
 
+	if v, ok := d.GetOk("route_table_id"); ok {
+		rtId := v.(string)
+		routeTableName, err := parseRouteTableName(rtId)
+		if err != nil {
+			return err
+		}
+
+		armMutexKV.Lock(routeTableName)
+		defer armMutexKV.Unlock(routeTableName)
+	}
+
 	armMutexKV.Lock(vnetName)
 	defer armMutexKV.Unlock(vnetName)
 
diff --git a/builtin/providers/azurerm/resource_arm_subnet_test.go b/builtin/providers/azurerm/resource_arm_subnet_test.go
index 5f1f2bcbe..264b0a540 100644
--- a/builtin/providers/azurerm/resource_arm_subnet_test.go
+++ b/builtin/providers/azurerm/resource_arm_subnet_test.go
@@ -13,7 +13,7 @@ import (
 func TestAccAzureRMSubnet_basic(t *testing.T) {
 
 	ri := acctest.RandInt()
-	config := fmt.Sprintf(testAccAzureRMSubnet_basic, ri, ri, ri)
+	config := fmt.Sprintf(testAccAzureRMSubnet_basic, ri, ri, ri, ri, ri)
 
 	resource.Test(t, resource.TestCase{
 		PreCheck:     func() { testAccPreCheck(t) },
@@ -33,7 +33,7 @@ func TestAccAzureRMSubnet_basic(t *testing.T) {
 func TestAccAzureRMSubnet_disappears(t *testing.T) {
 
 	ri := acctest.RandInt()
-	config := fmt.Sprintf(testAccAzureRMSubnet_basic, ri, ri, ri)
+	config := fmt.Sprintf(testAccAzureRMSubnet_basic, ri, ri, ri, ri, ri)
 
 	resource.Test(t, resource.TestCase{
 		PreCheck:     func() { testAccPreCheck(t) },
@@ -152,5 +152,22 @@ resource "azurerm_subnet" "test" {
     resource_group_name = "${azurerm_resource_group.test.name}"
     virtual_network_name = "${azurerm_virtual_network.test.name}"
     address_prefix = "10.0.2.0/24"
+	route_table_id = "${azurerm_route_table.test.id}" 
+}
+
+resource "azurerm_route_table" "test" {
+	name = "acctestroutetable%d"
+	resource_group_name = "${azurerm_resource_group.test.name}"
+	location = "West US"
+}
+
+resource "azurerm_route" "test" {
+	name = "acctestroute%d"
+	resource_group_name = "${azurerm_resource_group.test.name}"
+	route_table_name  = "${azurerm_route_table.test.name}" 
+
+	address_prefix = "10.100.0.0/14" 
+	next_hop_type = "VirtualAppliance" 
+	next_hop_in_ip_address = "10.10.1.1" 
 }
 `
diff --git a/builtin/providers/azurerm/resourceid.go b/builtin/providers/azurerm/resourceid.go
index f981b410b..4f89945e7 100644
--- a/builtin/providers/azurerm/resourceid.go
+++ b/builtin/providers/azurerm/resourceid.go
@@ -53,6 +53,11 @@ func parseAzureResourceID(id string) (*ResourceID, error) {
 		key := components[current]
 		value := components[current+1]
 
+		// Check key/value for empty strings.
+		if key == "" || value == "" {
+			return nil, fmt.Errorf("Key/Value cannot be empty strings. Key: '%s', Value: '%s'", key, value)
+		}
+
 		// Catch the subscriptionID before it can be overwritten by another "subscriptions"
 		// value in the ID which is the case for the Service Bus subscription resource
 		if key == "subscriptions" && subscriptionID == "" {
@@ -104,3 +109,12 @@ func parseNetworkSecurityGroupName(networkSecurityGroupId string) (string, error
 
 	return id.Path["networkSecurityGroups"], nil
 }
+
+func parseRouteTableName(routeTableId string) (string, error) {
+	id, err := parseAzureResourceID(routeTableId)
+	if err != nil {
+		return "", fmt.Errorf("[ERROR] Unable to parse Route Table ID '%s': %+v", routeTableId, err)
+	}
+
+	return id.Path["routeTables"], nil
+}
diff --git a/builtin/providers/azurerm/resourceid_test.go b/builtin/providers/azurerm/resourceid_test.go
index dff6ed800..4359b70d1 100644
--- a/builtin/providers/azurerm/resourceid_test.go
+++ b/builtin/providers/azurerm/resourceid_test.go
@@ -11,6 +11,18 @@ func TestParseAzureResourceID(t *testing.T) {
 		expectedResourceID *ResourceID
 		expectError        bool
 	}{
+		{
+			// Missing "resourceGroups".
+			"/subscriptions/00000000-0000-0000-0000-000000000000//myResourceGroup/",
+			nil,
+			true,
+		},
+		{
+			// Empty resource group ID.
+			"/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups//",
+			nil,
+			true,
+		},
 		{
 			"random",
 			nil,