In order to enable the use of semi-automatic and automatic operations for production on building sites, operations must be planned in advance and controlled on the basis of the planning. In a current research project funded by the Federal Republic of Germany, a method is being developed, which supports the computer-aided planning and control of medium-sized building sites. Works on building sites of this size take 4 to 12 months, and they are mostly planned insufficiently. This insufficient planning is due to a lacking support of construction management in the preparation of the building site. The method is aimed at site managers who manage several medium-sized building sections within one large construction site. Planning of operations and building site facilities is supported as well as economic monitoring via hour and cost control. The required actual data is acquired electronically by the building site staff. The method incorporates the usual workflow of the site manager and combines the information into few essential characteristic figures.