O retorno econômico a partir da valorização imobiliária derivada da implantação da infraestrutura verde e azul

Abstract

The development of several major cities around the world has followed the mistaken premise of replacing natural landscapes and controlling nature to meet urban demands. This process has been predominantly characterized by the use of so-called grey infrastructure, to the detriment of green and blue infrastructure. Paradoxically, the main justification for not adopting the latter is often the supposedly high cost of implementation. However, green and blue infrastructure offers a range of co-benefits that are often overlooked, making it difficult to accurately assess their cost-benefit ratio. In light of this context, this study investigated the hypothesis that implementing green and blue infrastructure in densely urbanized areas can generate significant economic returns through increased real estate value. The objective of this research was to propose a methodology to economically evaluate the appreciation of urban spaces resulting from the adoption of green and blue infrastructure. The methodology considers urban land value appreciation based on three analytical factors: the resilience of stormwater infrastructure, recreational value, and ecosystem services. The watersheds of the Acari River and the Mangue Canal were selected as case studies due to their environmental sensitivity. When analyzing the results at the watershed level, the observed land value appreciation was consistent with findings in the literature. However, a localized analysis revealed that, despite overall appreciation, some neighborhoods experienced devaluation. These findings suggest that the unequal application of green and blue infrastructure across regions may exacerbate economic and social inequalities, as such interventions can induce degradation processes in adjacent neighborhoods.