Hi Paul,
I assume we are talking about a custom taxonomy "property-category", please try use WP function get_the_terms:
Retrieve the terms of the taxonomy that are attached to the post.
http://codex.wordpress.org/Function_Reference/get_the_terms
For example:
... $terms = get_the_terms( $post_id, 'property-category' ); if($terms) { $title .= ' ' . implode(",", $terms); } ...
Please let me know if you need assistance to do it
Regards
Luo