In transformation projects the land-use needs to be changed. Developers must therefore apply for a change in the land-use plan or environmental permit to deviate from the land-use plan. Municipalities set all kinds off requirements for planning participation, these requirements can jeopardise the feasibility of the transformation plan. The project-specific requirements are in that case the one that can be most problematic to the projects. In that case, developers can optimise the project in order to make them more feasible. This can be done by going back to the negotiation table with the municipality and try to refute requirements. Financially optimising the project is in this case not the best solution. A recommendation is for developers to make a negotiation strategy and focus on building a good relation with the municipality.