Avaliação de soluções construtivas e de integração urbana em residência estudantil: estudo de caso de Jean d'Ordemesson, Paris-Saclay

Abstract

This study analyzes the development of a sustainable student residence located in the Concerted Development Zone (ZAC) of the École Polytechnique district, in Palaiseau, within the scientific and technological hub of Paris-Saclay, France. The study aims to develop a residence integrated into a territory undergoing transformation, balancing urban, social, and environmental demands. The adopted methodology combined documentary analysis of legislation and urban planning instruments, including the Local Urban Plan of Palaiseau, reports from the Paris-Saclay territorial management authority, and the French national policy for reducing soil artificialization, with on-site surveys, empirical observation, photographic records, and analysis of the daily use of spaces. Informal interviews with local students and energy simulations performed using the Pleiades software, based on parameters of the 2020 French Environmental Regulation and local climate data from Palaiseau, enabled the evaluation of energy consumption, thermal comfort, and carbon dioxide emissions. The resulting analysis highlighted the need for integrated environmental performance solutions, including the combined use of cross-laminated timber and lightweight concrete, improvement of façade systems, expansion of common areas, strategies for thermal and acoustic comfort, rainwater reuse, and installation of photovoltaic panels. The simulation results obtained in Pleiades after the proposed interventions indicate significant improvements in the building’s environmental performance, with a 35% reduction in annual primary energy consumption: from 125 to 81 kWh/m²·year and a 38% decrease in carbon dioxide emissions: from 19.2 to 11.9 kg/m². A 32% reduction in summer thermal discomfort hours, a 78% increase in natural daylight, a 28% reduction in water consumption, and an annual photovoltaic generation of approximately 20,500 kWh were also observed. These results demonstrate the technical feasibility of the proposed retrofit and reinforce the residence’s potential as a replicable model of sustainable student housing aligned with the environmental goals of the territory.