Charlotte’s new development rules take effect Charlotte Journalism Collaborative 2 years ago One of the more controversial UDO provisions allows triplexes and duplexes, like this one in the Chantilly neighborhood, in single-family neighborhoods. Jodie Valade / WFAE One of the more controversial UDO provisions allows triplexes and duplexes, like this one in the Chantilly neighborhood, in single-family neighborhoods. Jodie Valade / WFAE by Marshall Terry, WFAE