Creating SEO friendly property details URLs

By default a property created in Property Hive, either manually or imported, will have a permalink matching that of the display address:

https://yoursite.com/property/high-street-birmingham

This could be changed however to be more SEO friendly like so it looks like so:

https://yoursite.com/property-for-sale/birmingham/high-street-birmingham

This can be achieved using a snippet like so:

add_filter( 'post_type_link', 'customise_property_post_type_link', 10, 4 );
function customise_property_post_type_link( $post_link, $post, $leavename, $sample )
{
    if ( get_post_type($post->ID) == 'property' )
    {
        $property = new PH_Property($post->ID);

        $suffix = 'for-sale';
        if ( $property->department == 'residential-lettings' )
        {
            $suffix = 'to-rent';
        }

        $area = $property->address_three;
        if ( $area == '' )
        {
            $area = $property->address_four;
        }
        if ( $area == '' )
        {
            $area = $property->address_two;
        }
        if ( $area == '' )
        {
            $area = 'property';
        }

        $post_link = str_replace("/property/", "/property-" . $suffix . "/" . sanitize_title($area) . "/", $post_link);
    }

    return $post_link;
}

add_action( 'init', 'rewrites_init' );
function rewrites_init()
{
    add_rewrite_rule(
        'property-for-sale/([^/]+)/([^/]+)/?$',
        'index.php?post_type=property&name=$matches[2]',
        'top' );
    add_rewrite_rule(
        'property-to-rent/([^/]+)/([^/]+)/?$',
        'index.php?post_type=property&name=$matches[2]',
        'top' );
}