Abstract: There is increasing Australian and international interest in planning for health and liveability. One direction of the draft metropolitan Melbourne planning strategy, the ‘20 Minute Neighbourhood’, has incited particular interest. The notion is that all Melburnians should have access to services and jobs they need within a 20 minute walking, cycling or public transport journey from home. While Melbourne’s inner suburbs may have the pre-conditions of 20 minute neighbourhood, its rapidly growing outer suburbs are much more of a challenge. The City of Wyndham, 40 km southwest of the CBD, is Australia’s fastest growing outer suburb. Its two train stations serve more than 180,000 residents spread out over 541.6 km². One hundred and seventy five undergraduate students in an introductory planning subject have undertaken walkability assessments and street user head counts near the stations, a street survey of residents, and policy analysis. The data suggests that, although 20 minute neighbourhoods are possible throughout the metropolitan area, the new metropolitan planning strategy is likely to move outer suburbs further away from this ideal.