Addresses

750 Lexington Ave, New York, NY 10022

Avenida Paulista 2.300, andar Pilotis, 01310-300 São Paulo, Brazil

750 Lexington Ave, New York, NY 10022

85 Broad St, New York, NY 10004

Via Dante 7, 20123 Milan, Italy

6060 Center Dr, 10th Floor, Los Angeles, CA 90045

122 Leadenhall Street, London EC3V 4AB, UK

Level 35, Tower One Barangaroo, International Towers Sydney, 100 Barangaroo Avenue, Sydney, Australia

505 Montgomery St, San Francisco, CA 94111

Brickell City Centre, 78 SW 7th St, Miami, FL 33130

Willis Tower, 233 S Wacker Dr, Suite 4400, Chicago, IL 60606

Av. Paulista, 1374, Bela Vista, São Paulo, SP 01310-100, Brazil

93, rue de la Villette, 69003 Lyon, France

Via Properzio 5, Rome, Italy

One Central, 8th Floor, Trade Centre 2, Dubai, UAE

10 York Rd, London, England SE1 7ND

Gary Klein
Great design is about how people feel in a space, not just how it looks.
Gary Klein
ABOUT THE AUTHOR

Gary Klein

Hospitality & Environmental Design Specialist

Gary Klein is a respected building science consultant and plumbing efficiency expert widely recognized for his contributions to sustainable hot water system design and high-performance building practices within the AEC industry. As a leading authority on water distribution efficiency, his work focuses on optimizing plumbing infrastructure to reduce water waste, improve energy performance, and enhance occupant comfort across residential and commercial environments. Gary specializes in hot water recirculation strategies, plumbing system layout optimization, water heating efficiency, and code-compliant sustainable building solutions. Through his decades of research, policy development, and consulting experience, he provides valuable insight into modern commercial restroom systems, water-saving fixture integration, efficient plumbing design, and the growing importance of performance-driven infrastructure in contemporary building construction and facility management.

Designer & Educator
Industry Speaker
Author & Thought Leader