Founding partners Li Chung (Sandi) Pei and Chien Chung (Didi) Pei


PEI Architects is dedicated to innovation and distinction for all projects. Founding partners Chien Chung (Didi) Pei, AIA and Li Chung (Sandi) Pei, AIA, sons of world-renowned architect, I. M. Pei, and for many years’ key members of his firm, were taught the vision, commitment and professional standards essential to the creation of significant and lasting architecture

The Pei brothers’ accumulated knowledge and experience exemplifies the successful completion of many complex buildings worldwide. Their design values is that architecture should be thoughtful, well built and respond to societal needs. PEI Architects’ ethos, “respect for the past and responsiveness to present needs in the pursuit of enduring architecture,” is the foundation of the firm’s entire body of work.

Services & Approach

PEI Architects has been engaged in the design of architecture, master planning, restoration, interior design for high-profile projects both very large and small, including residential high-rise towers, healthcare facilities, institutional buildings, museums and corporate headquarters, as well as urban master plans and waterfront parks. The firm’s international practice extends around the globe to include projects in the United States, Mexico, Brazil, Canada, Europe, Asia, Africa and the Middle East.

PEI Architects’ approach to design starts with a thorough understanding the uniqueness of each project. Design solutions integrate building elements in a synthesized and comprehensive manner, always intending to meet the needs of the client and the occupants. In striving for design excellence, PEI Architects considers not only immediate site conditions but also a larger context—both physical and cultural. All design takes into account the natural environment and sustainability and aims to create a positive impact for future development in the area.