The Australian flat oyster Ostrea angasi previously formed extensive reefs throughout temperate regions of Australia. Reefs were sustainably managed and harvested by First Nations communities living in coastal areas for millennia, however significant overfishing and destruction of reefs after colonisation and European settlement destroyed these ecosystems. Over the past decade, O. angasi has been targeted for large-scale restoration, with all restoration projects occurring subtidally. Within these subtidal projects, other bivalves and aquatic vegetation have been shown to facilitate O. angasi recruitment and survival. However, O. angasi restoration and potential facilitative relationships are yet to be explored in the intertidal zone, which may be more stressful and hence less optimal for survival, growth, and reef formation. Here, we tested if survival and growth differed across various intertidal elevations spanning the shallow subtidal to low intertidal at three sites in Victoria. To determine if other co-occurring intertidal foundation species facilitate O. angasi, we tested if existing seagrass and mangroves increased survival and growth. We provide preliminary evidence of O. angasi survival and facilitative relationships within the intertidal zone. Exploring novel restoration strategies for functionally extinct shellfish ecosystems can help bring these ecologically, culturally, economically, and socially important ecosystems back into coastal areas.