Normative scenarios for long-term (e.g., 100 years) landscape development can be very inspiring to imagine outside the box landscape futures, without being obliged to define concrete policy objectives for the shorter term. However, it remains challenging to translate such long-term visions into clear transition pathways. We draw upon a landscape-based design approach to local spatial planning to foster a transition to a well-functioning landscape, resilient to various external pressures. Inspired by a national visioning exercise for the Netherlands in 2120, two local case studies at municipal level in the Netherlands are analysed, aiming to identify in what ways the setup of a regional landscape-based design study using future visions can optimise the spatial planning process. Therefore, this comparative case study analysed the cases on the landscape-based approach, the design process, and the future visions formulated. The comparison shows that fostering abiotic differences safeguards sustainable and resilient landscapes; moreover, co-creation relying on representative local actors appears fundamental for shared solutions, while a landscape-based approach guarantees transitions to adaptive and biodiverse landscapes. We conclude that a shared long-term future landscape vision is a crucial source of inspiration to solve today’s spatial planning problems. The constellation of the stakeholder group involved and the methodological setup of a visioning process are determinative for the way a long-term vision is suited to informing spatial planning for a sustainable future.