420 North 20th Street Philadelphia, PA 19130.3828
Phone: (215) 922-6600
Fax: (215) 922-4680

About the Firm

KieranTimberlake designs beautifully crafted, thoughtfully made buildings that are holistically integrated to site, program and people. Established in Philadelphia in 1984, the firm has produced a diverse body of work for clients drawn to its environmentally ethical approach and innovative design. The firm's partners are Stephen Kieran, FAIA, and James Timberlake, FAIA. The firm's principals are Richard Maimon, FAIA, and David Riz, AIA. The firm's senior associates are Joanne Aitken, FAIA; Christopher Macneal, AIA; and Jason E. Smith, AIA. The firm's associates are Billie Faircloth, AIA, Research Director; Richard Hodge, AIA; Matthew Krissel, AIA; Johann Mordhorst, AIA; Marilia Rodrigues, AIA; Carin Whitney, Communications Director; and Evan Yassky, AIA. KieranTimberlake is engaged in projects across the United States and abroad that include the programming, planning and design of all types of new structures, and the renovation, reuse and conservation of existing structures. The firm's clients include arts and civic organizations, cultural and educational institutions, corporations, industrial and research partners, and private residential clients. KieranTimberlake is one of the few architecture firms to employ a full-time, trans-disciplinary research team, dedicated to the advancement of building design practices through material, system, process, and environment driven questions. Collaboration with clients, consultants, environmental and material scientists, and those outside of architectural practice is essential to KieranTimberlake’s process of making.

Types of Work
30% Educational Facilities
5% Historic Preservation/Restoration
5% Housing (Multi-Unit)
5% Housing (Single Family)
5% Interiors
8% Lab/Research Facilities
5% Libraries
10% Museum/Galleries
10% Planning
5% Public Work (Civic/Gov't)
5% Theater/Entertainment
2% Urban Design

Special Services

Post Occupancy Evaluation


Sustainable Design

Firm Personnel
  • 66 Total Staff This Office
  • 29 Architects (Registered)
  • 10 Administration

Examples of Projects

Master Plan for the Central Delaware; Dilworth Plaza; Kimmel Center Master Plan; Brockman Hall for Physics, Rice University; Morse & Ezra Stiles Colleges, Yale University; Center City Building, University of North Carolina Charlotte; Northwest Campus Student Housing, University of California, Los Angeles; Charles David Keeling Apartments, University of California, San Diego; Single and Multi-family Homes, LivingHomes; Meeting House and Arts Center, Sidwell Friends School; West Campus Residential Initiative, Cornell University; Make It Right, Special NO 9 House; Houghton Memorial Chapel and Multifaith Center, Wellesley College; Sculpture Building and School of Art Gallery, Yale University; Loblolly House; Cellophane House™, Home Delivery Exhibit, The Museum of Modern Art; Suzanne Roberts Theatre, Philadelphia Theatre Company; 1315 Hill Street Apartments, Ann Arbor, MI; Silliman, Davenport, Berkeley, and Pierson College Renovations, Yale University; Stewart Middle School and Lower School, Sidwell Friends School; Atwater Commons, Middlebury College; New Residence Halls & Dining Facility Planning, The University of Chicago; Student Activities Master Plan, Stanford University; SmartWrap™ Exhibit, Cooper-Hewitt, National Design Museum; Melvin J. and Claire Levine Hall, University of Pennsylvania; Pre-School and Lower School, Durham Academy

Recognition / Awards

The design community has recognized the firm for its fusion of research with architecture, bestowing over 125 design citations, including the 2008 Architecture Firm Award from the American Institute of Architects, the highest honor given to an architectural practice for consistently producing works of distinction, and the 2010 Cooper-Hewitt National Design Award for Architecture.

Richard Maimon, FAIA; David Riz, AIA

Senior Associates
Joanne Aitken, FAIA; Chris Macneal, AIA; Jason Smith, AIA; Pat Ward, AIA

Richard Maimon, FAIA, Principal

Shelly Noga, Business Manager

Stephen Kieran, FAIA; James Timberlake, FAIA



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