This research investigates a practical way to address clashes in stakeholder values and enhance outcomes in water allocation planning, in a case study of the water-stressed Lockyer catchment in Australia. A conflict assessment using photovoice interviews early in the process was used to identify divergent interests and values about sustainability, private and public benefit, and equity. A photovoice workshop as well as separate and joint meetings of government and irrigator groups using various consensus-building techniques fostered mutual respect, identified common ground, and contributed toward a negotiated package. This case study shows that techniques that clarify parties' values can reduce areas of divergence and refocus parties on topics for further negotiation in water planning. A consensus-building process need not be formalized in legislation; techniques can be tailored for the purpose and needs of the situation, and together with institutional change will contribute to more collaborative and deliberative planning processes.