diff --git a/builtin/providers/openstack/resource_openstack_networking_subnet.go b/builtin/providers/openstack/resource_openstack_networking_subnet.go
index bedad5572..0f52c0be2 100644
--- a/builtin/providers/openstack/resource_openstack_networking_subnet.go
+++ b/builtin/providers/openstack/resource_openstack_networking_subnet.go
@@ -270,7 +270,11 @@ func resourceSubnetAllocationPools(d *schema.ResourceData) []subnets.AllocationP
 	rawAPs := d.Get("allocation_pools").([]interface{})
 	aps := make([]subnets.AllocationPool, len(rawAPs))
 	for i, raw := range rawAPs {
-		aps[i] = raw.(subnets.AllocationPool)
+		rawMap := raw.(map[string]interface{})
+		aps[i] = subnets.AllocationPool{
+			Start: rawMap["start"].(string),
+			End:   rawMap["end"].(string),
+		}
 	}
 	return aps
 }
@@ -288,7 +292,11 @@ func resourceSubnetHostRoutes(d *schema.ResourceData) []subnets.HostRoute {
 	rawHR := d.Get("host_routes").([]interface{})
 	hr := make([]subnets.HostRoute, len(rawHR))
 	for i, raw := range rawHR {
-		hr[i] = raw.(subnets.HostRoute)
+		rawMap := raw.(map[string]interface{})
+		hr[i] = subnets.HostRoute{
+			DestinationCIDR: rawMap["destination_cidr"].(string),
+			NextHop:         rawMap["next_hop"].(string),
+		}
 	}
 	return hr
 }
diff --git a/website/source/docs/providers/openstack/r/networking_subnet.html.markdown b/website/source/docs/providers/openstack/r/networking_subnet.html.markdown
new file mode 100644
index 000000000..f9ab4f6ed
--- /dev/null
+++ b/website/source/docs/providers/openstack/r/networking_subnet.html.markdown
@@ -0,0 +1,92 @@
+---
+layout: "openstack"
+page_title: "OpenStack: openstack_networking_subnet"
+sidebar_current: "docs-openstack-resource-networking-subnet"
+description: |-
+  Manages a Neutron subnet resource within OpenStack.
+---
+
+# openstack\_networking\_subnet
+
+Manages a Neutron subnet resource within OpenStack.
+
+## Example Usage
+
+```
+resource "openstack_networking_network" "network_1" {
+  name = "tf_test_network"
+  admin_state_up = "true"
+}
+
+resource "openstack_networking_subnet" "subnet_1" {
+  network_id = "${openstack_networking_network.network_1.id}"
+  cidr = "192.168.199.0/24"
+  ip_version = 4
+}
+```
+
+## Argument Reference
+
+The following arguments are supported:
+
+* `network_id` - (Required) The UUID of the parent network. Changing this
+    creates a new subnet.
+
+* `cidr` - (Required) CIDR representing IP range for this subnet, based on IP
+    version. Changing this creates a new subnet.
+
+* `ip_version` - (Required) IP version, either 4 or 6. Changing this creates a
+    new subnet.
+
+* `name` - (Optional) The name of the subnet. Changing this updates the name of
+    the existing subnet.
+
+* `tenant_id` - (Optional) The owner of the subnet. Required if admin wants to
+    create a subnet for another tenant. Changing this creates a new subnet.
+
+* `allocation_pools` - (Optional) An array of sub-ranges of CIDR available for
+    dynamic allocation to ports. The allocation_pool object structure is
+    documented below. Changing this creates a new subnet.
+
+* `gateway_ip` - (Optional)  Default gateway used by devices in this subnet.
+    Changing this updates the gateway IP of the existing subnet.
+
+* `enable_dhcp` - (Optional) The administrative state of the network.
+    Acceptable values are "true" and "false". Changing this value enables or
+    disables the DHCP capabilities of the existing subnet.
+
+* `dns_nameservers` - (Optional) An array of DNS name server names used by hosts
+    in this subnet. Changing this updates the DNS name servers for the existing
+    subnet.
+
+* `host_routes` - (Optional) An array of routes that should be used by devices
+    with IPs from this subnet (not including local subnet route). The host_route
+    object structure is documented below. Changing this updates the host routes
+    for the existing subnet.
+
+The `allocation_pools` block supports:
+
+* `start` - (Required) The starting address.
+
+* `end` - (Required) The ending address.
+
+The `host_routes` block supports:
+
+* `destination_cidr` - (Required) The destination CIDR.
+
+* `next_hop` - (Required) The next hop in the route.
+
+## Attributes Reference
+
+The following attributes are exported:
+
+* `network_id` - See Argument Reference above.
+* `cidr` - See Argument Reference above.
+* `ip_version` - See Argument Reference above.
+* `name` - See Argument Reference above.
+* `tenant_id` - See Argument Reference above.
+* `allocation_pools` - See Argument Reference above.
+* `gateway_ip` - See Argument Reference above.
+* `enable_dhcp` - See Argument Reference above.
+* `dns_nameservers` - See Argument Reference above.
+* `host_routes` - See Argument Reference above.