Space for You and Your Baby is a preventative support programme for new parents based on the Australian supported playgroup model. In Aotearoa New Zealand, Space is provided to approximately 2000 participants each year but has never been formally evaluated. This study employed a cross-sectional retrospective research design and examined why new parents attend Space and how Space contributed to their adjustment to parenthood. Over 500 current and former participants completed a mixed-methods survey. The results showed that participants were primarily motivated to attend Space for social support and highly endorsed the programme across all of the targeted outcomes. Facilitator competency moderated these generally positive findings. The results have implications for facilitator training, community partnerships, and point to opportunities for further evaluation research.