Vertical schools are a new type of school in Australia, with little research available to guide designers and school leaders how to address the physical and social challenges that density and interiority add to the students' schooling experience. As students capably communicate their experiences and perspectives about school spaces for wellbeing, pioneering students in three new vertical schools demonstrated the power of student voice in the "Thriving in Vertical Schools" project, a 3-year mixed-methods Australian Research Council Linkage project. Young people showed adults how their school spaces enable them to be, feel, and do activities where they feel capable, and how the vertical school environment contributes to wellbeing. Students communicated their voice through multiple layers: the student voice processes (methods), stories with sensory atmospheres (experience), and participating in impactful discussions with adults (action/influence). Adult designers and education leaders were interviewed several weeks after listening to students, identifying how student perspectives had influenced their work. This paper demonstrates how the combination of participatory voice-inclusive methods enabled students to communicate immersive experiences that brought light to interactions for school wellbeing at a level of granularity that adults had not had access to before to influence future designs. This paper argues for the value of attending to student voice and sensitivity in providing choice and options when doing so, so that students are supported to express themselves and their rich experiences in ways of their choosing and ways comfortable to them.