The New South Wales Government is proposing to extend its complying development Housing Code from two-storey detached houses into terrace houses, duplexes and town houses.

While this is a good move, far more is needed to help housing supply, particularly in Sydney. The idea behind “complying development” is that tried and tested building types that fit clear rules can get quick approvals. Proposals for more complex buildings that are one-off solutions should go down the…