Planungsbasis

Planungsbasis is a foundational concept in German-speaking planning practice. It refers to the set of data, requirements, standards, and assumptions that define the context for a planning task and serve as the basis for design decisions, analyses, and evaluations. The Planungsbasis shapes the scope of work, the criteria for success, and the methods used to compare alternative solutions.

Its components typically cover factual site information (topography, geotechnics, hydrology), regulatory and normative references (building codes, zoning plans, environmental regulations), client and stakeholder requirements, technical performance criteria, cost estimates and financial constraints, risk and uncertainty assumptions, and schedule boundaries. The exact composition depends on the domain and project stage.

In practice, the Planungsbasis is established early in a project and updated as new information becomes available. It provides traceability, supports transparency in decision-making, and acts as a baseline for feasibility studies, design development, and impact assessments. Changes to the Planungsbasis often trigger reviews of plans and may require revalidation or approval by responsible authorities.

Common domains include civil engineering, architecture, urban and regional planning, and environmental planning. The term is sometimes used interchangeably with Planungsgrundlage, though usage can vary by organization; related concepts include Planungsannahmen (planning assumptions) and design criteria that define acceptable performance levels.