Lydia Tiasiri

Director of Design & Chief Sustainability Officer

Fenn Designers Co., Ltd & Green Path Consulting

Lydia Tiasiri is an award-winning interior architect and sustainability strategist leading

Fenn Designers and its specialized arm, Green Path Consulting. As the firm’s second-

generation leader, she returned to the family practice founded by master planner and

architect Dr. Chafia Ferhat. Lydia’s foundational years at Fenn Desigenrs included key roles

in delivering landmark projects such as the Mandarin Oriental, Bangkok and BITEC.

Her global trajectory began in Italy, where she earned her Bachelors in Interior and Product

Design in Florence. Following her Master’s degree in Sustainable Interior Environments in

New York, Lydia spent five years at HOK NYC. During this tenure, she realised high-profile

developments including the Four Seasons Residence in Nashville and the flagship

Integrative Health and Wellbeing for New York-Presbyterian & Weill Cornell Medicine. She

later served as Design Director for The Standard, Bangkok Mahanakhon, and working the

brand's other properties into Hua Hin and the Maldives.

Today, Lydia serves as both Director of Design and Chief Sustainability Officer, bridging the

gap between aesthetic excellence and environmental accountability. Her "Global-Local"

philosophy integrates elite technical requirements with hyper-local craftsmanship to meet

rigorous 2026 international ESG mandates. In addition to her design leadership, she is an

independent Green Globe Auditor and GSTC Professional. Holding a rare suite of

credentials including NCIDQ, LEED GA, and WELL AP , Lydia acts as a strategic bridge for

owners, transforming high-concept narrative interiors into high-performance, net-positive

global assets.

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