Since the beginning of the 1990s there can be watched some mayor changes at the European real estate market. One of them is the tendentiously saturated market, which leads to much higher user requirements and have essential influences on the design of real estate properties. In the future, it is necessary that the design of durable asset properties is suitable for short-changing user requirements. As that, the variability of properties, with the aim of a long-term marketability, will also be a very significant factor to use properties as security for loans. The changings above result in increasingly complex buildings. The rapid advancement in technology and with it the adjustments of norms and regulations, require a quantity of professional disciplines and special knowledge. To that, the number of project participants increases rapidly. Financiers and builders, who usually have little or no expertise in the management of construction projects, are mostly overtaxed. Its overarching objective is the completed building, which correspond to the desired user requirements and deliver the anticipated rate of return. Consequently, the question arises whether the conventional workflow at real estate project development, which is marked by a sequentially participation of the stakeholders, can fulfill these requirements. Or is it more purposeful to put some incentives on the stakeholders and gather them to operate parallel in earlier project phases. From this initial position, the hypothesis is deduced, that the application of an integrated workflow in project development affects the value of real estate properties. The research should give an answer to the questions: firstly, whether the model of an early integration of the participants at real estate project development is suitable to increase the value of properties and secondly, what relative difference of the asset value is between a conventional process and an integrated process model.