GECINA - REFERENCE DOCUMENT 2017

FROM CORPORATE RESPONSIBILITY TO SUSTAINABLE PERFORMANCE Priority 1: generate productivity and well-being for the occupants in adaptable buildings

Actions and results

7.3.2.2

Theme

Key actions

Progress and results

Adaptation to the usages and needs of occupants

Deployment of structural systems to ■ facilitate the organizational evolution of the space (reserves for networks, zoning and scalability of power reserves) Deployment of structural systems to ■ facilitate the modularity of the building (façade openings facilitating the entry of daylight) Establishment of key premises to enable ■ the evolution of the densification of floor space for offices and facilitate the transformation of living spaces for housing units Definition of a methodology for analyzing ■ risk by family of buildings for five major hazards (heat waves, flooding, droughts, storms and average temperature increases) Mapping commercial and residential ■ properties with analysis of capacity for adaptation of the assets (to evaluate net risk) Evaluation of costs linked to climate risk ■ Implementation of adaptation measures in ■ the specifications of buildings in development Incorporation of adaptation measures in ■ the specifications of buildings in development

100% of buildings developed for high ■ levels of performance to meet the "adaptability" criterion of HQE TM Construction certification and thus reflecting the key actions

Adaptation to climate change

A study carried out in 2017 by the firm ■ Carbone 4 taking into account the five major hazards and six aggravating contextual factors for seven families of offices Creation of a mapping of Gecina's ■ commercial properties (excluding Eurosic, i.e., 72 buildings) and identification of nine priority assets Completion of the mapping of Gecina ■ commercial properties (excluding Eurosic, 20 solutions for adaptation identified for ■ the priority buildings and arbitrage to carry out depending on evaluation of the cost of impacts (in 2018) Changing specifications based on asset ■ categories (launching in 2018)) which includes 72 buildings) and identification of nine priority assets

Focus on adaptation to the usages and needs of the occupants Faced with a rapid evolution of organizations, companies more and more must reconfigure their work spaces (open platforms, partitioned offices or Meeting rooms), even if only temporary. A Gecina tenant, for example, has identified that all of the building platforms that they lease are subject to remodeling every two years. Given that the ventilation systems condition the capacity for remodeling of spaces according to needs, Gecina is developing technical solutions facilitating the adaptation of its property portfolio, such as on the buildings: 32 Guersant, for which front air arrival modules are ■ installed following a scheme authorizing the channeling and extraction of new air up to 120 m 3 /h. Each system can be equipped with a CO 2 sensor for modulating the speed depending on the occupancy in the Meeting room; Grande Halle, for which adaptation is provided by air ■ distribution terminal systems, of the chilled beam type. An additional motor may be added, as needed, to increase the ventilation speeds and guarantee, in the case of installation in Meeting rooms, the supply of new air adequate for the comfort of the occupants. According to the setup of the building, Gecina is studying the possibility of designing spaces for multiple functions, following the example of the Be Issy building whose reception hall can be reconfigured as an auditorium.

Focus on adaptation to climate change To limit the physical risks related to climate change on the buildings as well as their financial impacts, Gecina has begun a process of analysis resulting in the implementation of action plans for improving the resiliency of assets defined as priority assets. The first step in this study, conducted with the help of the firm Carbone 4, consisted in analyzing the vulnerability of all of the operating office assets faced with six major climactic hazards: heat waves, intense precipitation and flooding, increase in average temperatures, droughts and storms. Vulnerability profiles were thus created for seven families of buildings based on their technical characteristics (construction and architectural modes, equipment, wall coverings, etc.). These profiles list the physical and functional impacts of each of the hazards on different units: structure (roofing, superstructure, etc.), technical equipment (electricity, heating, ventilation air conditioning, etc.) as well as the usages. For example, during heat waves, the power needed for air conditioning will be greater and the thermal comfort on the occupants will be worsened. These impacts are evaluated according to a predefined scale (not serious, major impact, breakdown) to create an aggregate vulnerability rating for each risk. Secondly, the surrounding environment was analyzed to take into account any aggravating or attenuating factors related to the local context of the different buildings.

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GECINA - REFERENCE DOCUMENT 2017