Sustainability was brought to the fore at Prodexpo 23, the specialized conference for the Greek Real Estate market held on October 24th and 25th at Athens Concert Hall. With Just Go Zero, a total of 52.1 kg of organics, 45.6 kg of plastic, 8.3 kg of paper and 1.3 kg of aluminum were collected and managed. With the sound environmental management of these materials, 20.11 kg of soil fertilizer were produced, and 314.69 kWh of energy and 0.22 kg of carbon dioxide release into the atmosphere were saved.