The recent Barker Report on housing supply has identified serious shortages which partly result from slow planning decisions and conservative interpretations of Planning Policy Guidance 3 (PPG3) development rules. Increased and wider stakeholder interests and associated consultation times are also stretching out medium- to large-scale development approval times. Sustainable development design for high-density masterplanning, based on enhanced lifestyle and environmental parameters and which incorporate sustainable drainage systems are proposed, which bring together the apparently contradictory objectives of PPG3 development and PPG25 flood risk regulations.