It is acknowledged that land value is dependant by spatial variables, for instance the presence of infrastructures or services contributes in increasing the appeal of a site and the price of land or houses increases too. Land development processes contributes in creating economic value but also social and ecologic values. All these aspects concur in creating public value which is an indicator of life quality in a certain area. It emerges how public value is a grounding element in land transformation processes such as urban regeneration phenomena. But how public value is included in land development regulation? And, if processes are based on value creation, how does it spread on territory? Is it possible to measure it and to assess the effects of land development? To answer these questions, it is necessary to consider how land regulation evolves in a certain area and which are the different actors that contribute within land development process. Once that an urban transformation is defined it is possible to quantify its effect using different analyses such as the costs/benefits analysis or the analytic hierarchy process. To implement these methodologies a definition of a set of indicators is needed which can consider both environmental and socioeconomic aspects. One of the considered indicators is the economic value oh houses which is strongly connected with land value. Using GIS software, it is possible to analyse its spatial distribution and if there are relationships with land development projects that in a defined period occur in an area. The article analyses an urban regeneration process that happened in Brescia (IT) between 2013 and 2018 focusing on the spatial distribution of economic value. The starting point of the analysis is the study of how land and public value are considered within land regulation. These prescriptions strongly influenced land development processes and the analysis of Brescia case study, though the implementation of economic value maps, is the occasion to understand how detailed plans implementation contributes in creating a diffuse quality of life in urban environment.