• Building certification enables access to privileged conditions of access to the best properties, to specific funds, etc.
• Certification is included in non-financial rating systems and in mandatory reports on sustainable development and CSR for firms.
• HQE certification is recognised by experts and investors as constituting "green value"

"Do green buildings deliver on their promises?"

This study, conducted by J.Carrassus, is based on interviews with 11 CEOs and answers 5 questions: What are the real performance levels of green offices? Are we progressing in measuring actual performances? What is the connection between property value and performance levels? In what way is the HQE Operations certification a step forward? Which changes are needed for managing operations based on actual performances? The author makes 11 recommendations for real estate professionals.
L'auteur formule 11 recommandations pour les professionnels de l'immobilier.

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"Do green buildings deliver on their promises?"

According to a study by Jean Carassus, Professor at the Ecole des Ponts Paris Tech, Sustainable Real Estate Board, « in the U.S. market, the only market where hundreds of certified office buildings have been rented, occupied and resold, a "green" office building tends to be rented at a higher value, to have a greater occupancy rate and a higher resale price than a "non-green" building with comparable features.

The link between environmental performances and property value ​​is likely, provided that the "green" building respects these real estate fundamentals: the quality of the location and the public transport service, the quality of the building use commensurate to demand.

This «green value» can take two forms:
• a surplus value for "green" buildings, for real estate markets on the uptrend,
• a lesser value for "non-green" buildings, for real estate markets on the downtrend. This "green value" appears more easily in real estate markets showing slack in demand than in tight real estate markets.»