GECINA - REFERENCE DOCUMENT 2017

07

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

7.3.1.3 Analysis of Performance The results of the portfolio analysis are presented according to the labels for contribution to occupant productivity compared to a standard building.

LABELS FOR CONTRIBUTION TO OCCUPANT PRODUCTIVITY (DIFFERENCE IN PRODUCTIVITY COMPARED TO A STANDARD BUILDING)

DISTRIBUTION OF GECINA’S BUILDINGS ACCORDING TO THEIR LABEL FOR CONTRIBUTION TO OCCUPANT PRODUCTIVITY

0 %

0 %

12 %

69 %

18 %

1 %

0 %

10% to 15 % 5% to 10 % 0% to 5 % -5% to 0 % -10% to -5 % -15% to -10 % < -15 %

A

B

C

D

Standard building

E

F

G

A

B

C

D

E

F

G

In 2017, 81% of buildings in Gecina’s office portfolio contributed more to the productivity of their occupants than a standard building available on the market. This figure exceeds the target of 75% that Gecina set for 2020. However, a comprehensive assessment of the quality of the offices portfolio can only begin in 2018, given the analysis underway of Eurosic’s property portfolio. Depending on the results of the analysis, specific improvements will be identified for implementation. The changes in methodology occurring in 2017 have complicated the direct comparison of results to those obtained in 2016.

In order to facilitate the implementation of new usages and respond to changes in the needs of occupants, certain structural, architectural and technical provisions must be made in the initial design of a building. These involve the capacity and size of the building, the walls, the partitioning, the integration, the choice in the sizing of technical systems or the implementation of vertical servicing, rest rooms and emergency exits. One study, conducted by the firm Carbone 4 for Gecina, based on bibliographical sources (1) , analyzed climate change in the Île-de-France region to the 2070. This study was conducted using three scenarios of evolution in greenhouse gas (GHG) emissions from the GIEC report (2) : optimistic scenarios (RCP 2.6), neutral (RCP 4.5) and pessimistic (RCP 8.5). This study shows that the risks of flooding remain very high on a regional level. The risks of major droughts causing the shrinking and swelling of clay present an increasing trend, as well as the risks of heat waves and the average increase in temperature level. All of the climatic hazards, taken together, will have more or less major consequences on structures, equipment and the functioning of buildings depending on the specific context linked to their location, their intrinsic capacity for adaptation, and measures that could be taken to reduce their vulnerability.

7.3.2

BUILDING ADAPTABILITY

Background 7.3.2.1 The adaptability of a building is characterized by its ability to evolve in time depending on changes: in the usages and needs of its occupants, such as the ■ increasing need for useful surface areas, changes in the breakdown and location of group and individual spaces, or the densification of occupation in the building; in the physical conditions of its environment, and mainly ■ those linked to the effects of climate change and an increase in temperatures by at least 2°C.

Climate change in Paris (Le changement climatique à Paris), Agence Parisienne du climat – Météo France; Prospective study of the impacts of climate (1) change on buildings to the 2030-2050 horizon (Étude prospective sur les impacts du changement climatique pour le bâtiment à l’horizon 2030 à 2050, ADEME - January 2015; climate report on France in the XXIst century (Rapport Climat de la France au XXIe siècle), Volume 4: Regionalized scenarios (Scénarios régionalisés) -2014 edition - for the metropolis and the overseas regions, directed by Jean Jouzel – August 2014; MÉTÉO-FRANCE report - EPICEA Project - Part 1: Changes in the Paris climate (Évolution du climat de Paris) 2011. Intergouvernemental group of experts on climate change. (2)

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