Transformations in existing cities are complex and require a coordinated and flexible approach, with the parties involved jointly trying to find the optimal harmonisation of all partial aspects. Frequently, cultural history input is an important precondition, but the time when a preliminary list of buildings or parts of buildings to be conserved sufficed is far behind us. The cultural history input stretches beyond conservation. It also concerns design themes and characteristic features of a building or an area.
To do justice to the material and immaterial qualities without obstructing the opportunities for development, architectural (areas) or transformation (buildings and ensembles) guidelines can be drawn up, laying down the essential aspects and structural principles to serve as an inspiration for the design and as a context for the assessment of plans. The objective of SteenhuisMeurs is that the documents which provide guidelines form a binding factor for the parties involved in and with the planning processes.