Often, research has studied the urban impact through: urban development and transport projects. The results suggest that factors from the real estate products (surface useful, number of bedrooms and bathrooms, parking, swimming pools, air conditioning, age) and environmental factors (socioeconomic status of the resident population, the proximity to infrastructure road and rail, the diversity of economic activities) are included in the expectation of real estate value. In this paper we report the results of a study that tries to simulate an integrated manner, the effect produced by large urban interventions on the accessibility, land use and real estate value in the Metropolitan Area of Barcelona. Using integrated transport model (model double bounded distribution and network assignment model) and hedonic models in a specialized GIS platform will try to simulate at census tract scale, direct impacts in the area of implementation of a specific development project, and also the indirect impact that occurs in the system of interaction of the metropolitan area of Barcelona. The analysis suggests that each group of urban development (approximately 30), produce different effects on the dimensions analyzed. The effect of transport projects is significantly lower than the effect of urban interventions as a whole, in the value of supply. This is because urban interventions, in addition to reconfigure the structure of accessibility, change the intensity of the attractions and generations of the system, a fact that no occur with only the transportation projects. There are cases where the magnitude of urban development is significant; however there are no changes in property values.Peer ReviewedPreprin