KieranTimberlake is an American architecture firm based in Philadelphia. Since its founding in 1984, it has focused on sustainability, including research that it has used to develop new building technologies and products. Its projects include the planning and design of new structures, and the renovation and transformation of existing buildings. The firm has received many national and international awards for its work.

Founders Stephen Kieran and James Timberlake met while they were architecture students at the University of Pennsylvania in the mid-1970s.^[2] Their architecture professor Steven Izenour introduced them to architects Robert Venturi and Denise Scott Brown, and the pair went to work at Venturi, Scott Brown & Associates, the firm where Izenour was also employed.^[2]

In 1980, Kieran won the Rome Prize, which included a year-long fellowship at the American Academy in Rome.^[2][3] In 1982, Timberlake also won the Rome Prize and was awarded a year-long fellowship.^[4][5]

In 1984, Kieran, Timberlake, and structural engineer Sam Harris, established KieranTimberlake. The firm was initially headquartered in Kieran's Powelton Village house.^[6][4] Their first projects included a new building for Kieran's father's car dealership and a jewelry store.^[4] The firm's first big project came in 1986 when they were commissioned to design a campus community center at Chestnut Hill College.^[4] KieranTimberlake was then commissioned for a project at Bryn Mawr College's Shipley School complex.^[4] Harris later left KieranTimberlake in the 1990s to run his own practice.^[4][7]

In 2001, James Timberlake and Stephen Kieran won the Benjamin Henry Latrobe award from the Fellow of the American Institute of Architects which came with $50,000.^[4][8] Timberlake and Kieran used the earnings to write a book titled Refabricating Architecture.^[4] The book was published in 2003, and as of 2011, had sold 13,000 copies.^[4] In 2002, Princeton Architectural Press published Manual: The Architecture of KieranTimberlake, which presents a technical look at the firm's architectural practices.^[4] By 2002, the firm had 50 employees.^[4]

In 2003, the firm installed the first actively ventilated curtain wall in North America at the University of Pennsylvania's Levine Hall.^[9][2] Also in 2003, KieranTimberlake built a pavilion featuring the firm's Smartwrap technology at the Cooper Hewitt, Smithsonian Design Museum.^[10]

In 2008, KieranTimberlake's Cellophane House was selected to appear at the Museum of Modern Art's Home Delivery: Fabricating the Modern Dwelling exhibition.^[11][12] The building was selected for the MoMA's exhibit due to its modular design, use of sustainable building practices, and SmartWrap.^[11][13]

In February 2010, KieranTimberlake won the commission for the new Embassy of the United States, London.^[14] In January 2018, the new embassy building in London opened.^[15]

In 2015, Kieran and Timberlake authored Alluvium: Dhaka, Bangladesh, in the Crossroads of Water, a book investigating housing and climate change in Bangladesh.^[16] The book was inspired by the graduate architecture research studio the pair taught at the University of Pennsylvania, which included a trip to Bangladesh.^[16]

By January 2016, KieranTimberlake had moved its headquarters to a 63,000-square-foot former bottling plant for Henry F. Ortlieb’s Brewing Co., now Christian Schmidt Brewing Company, in the Northern Liberties neighborhood of Philadelphia and has 100 employees.^[17]

The firm has conducted research studies on carbon reduction and sustainability which have led to the development of new building technologies and products.^{[17][18][19][20]} One such product is customizable plastic walls called SmartWrap that cover conventional walls and provide insulation, heat, power, and light.^[19] SmartWrap is a proprietary system consisting of layers of transparent PET plastic that incorporates ultrathin photovoltaic cells that gather solar energy, coupled with flat chemical batteries to store it.^[10][21] It was developed (in coordination with ILC Dover and DuPont) while teaching at the University of Pennsylvania School of Design,^[19] and debuted at a "SmartWrap" pavilion erected at the Cooper-Hewitt in 2003.^[19][13][10]

In 2013, KieranTimberlake developed Pointelist, a wireless sensor network.^[22]

Later in 2013, KieranTimberlake developed Tally, a life cycle assessment software plug-in for the building information modeling software Autodesk Revit.^[20] KieranTimberlake gifted Tally to the nonprofit organization Building Transparency in 2021, making Tally free and open access.^[20]

In 2018, the firm published the app Roast, which surveys users to assess building comfort by recording perceived temperatures, brightness, and noise levels.^[23][24] Development of the app began when the firm moved into a former beer bottling plant in the summer of 2015.^[23]

Project	Location	Status	Year
West Middle School, The Shipley School	Bryn Mawr, PA	Completed	1993	[4]
Loblolly House	Taylors Island, MD	Completed	2006	[25][26]
Sidwell Friends School Middle School Renovation	Washington, D.C.	Completed	2006	[27]
Yale University Sculpture Building and Gallery	New Haven, CT	Completed	2007	[28]
Cellophane House, Museum of Modern Art	Midtown Manhattan, New York City	Completed	2008	[13]
Yale University Morse College and Ezra Stiles College Renovation	Wellesley, Massachusetts	Completed	2010	[29]
Rice University Brockman Hall for Physics	Houston, Texas	Completed	2011	[30]
University of California, San Diego Charles David Keeling Apartments	San Diego, California	Completed	2011	[31][32]
Dilworth Park	Philadelphia, PA	Completed	2014	[33]
Pound Ridge House	Pound Ridge, New York	Completed	2014	[34]
High Horse Ranch	Willits, California	Completed	2016	[35]
Embassy of the United States, London	London	Completed	2017	[14]
Washington University in St. Louis Danforth Campus East End Transformation	St. Louis, Missouri	Completed	2019	[36][37]
University of California, Santa Barbara Henley Hall Institute for Energy Efficiency	Santa Barbara, CA	Completed	2020	[38]
Iowa State University Student Innovation Center	Ames, Iowa	Completed	2020	[39]
University of Washington North Campus Housing	Seattle, Washington	Completed	2021	[40]
Art and Ideals: President John F. Kennedy at the John F. Kennedy Center for the Performing Arts	Washington, D.C.	Completed	2022	[41][42]
New York University John A. Paulson Center	New York City	Completed	2023	[43]
Folger Shakespeare Library Renovation	Washington, D.C.	Completed	2024	[44][45]
Penn's Landing Park Pavilion	Philadelphia, PA	Under Construction	2024	[46]

• 2001 American Institute of Architects College of Fellows Latrobe Prize^[47]
• 2008 American Institute of Architects Architecture Firm Award^[48]
• 2009 American Institute of Architects Education Facility Award for Yale University Sculpture Building and Gallery^[49]
• 2010 Cooper-Hewitt National Design Award^[50]
• 2014 American Institute of Architects Institute Honor Award for Sidwell Friends School Quaker Meeting House and Arts Centre^[51]
• 2019 American Institute of Architects Housing Award for University of California Santa Barbara San Joaquin Villages^[52]
• 2021 Center for Architecture and Design's 35th Louis I. Kahn Award^[53][54]
• 2022 American Institute of Architects Architecture Award for U.S. Embassy in London^[55]
• 2023 American Institute of Architects Regional and Urban Design Award for Washington University in St. Louis East End Transformation^[56]
• 2024 American Institute of Architects Housing Award for University of Washington North Campus Housing^[57]
• 2024 American Institute of Architects Architecture Award for New York University John A. Paulson Center ^[58]

• Kieran, Stephen; Timberlake, James (2002). Manual: The Architecture of KierenTimberlake. Princeton Architectural Press. p. 216. ISBN 978-1568983509.
• Kieran, Stephen; Timberlake, James (2003). Refabricating Architecture. New York: McGraw Hill. p. 175. ISBN 978-0071709088.
• Kieran, Stephen; Timberlake, James (2008). Loblolly House: Elements of a New Architecture. Princeton Architectural Press. p. 176. ISBN 978-1568987477.
• Kieran, Stephen; Timberlake, James (2011). Cellophane House. KieranTimberlake. p. 145. ISBN 978-0983130130.
• Kieran, Stephen; Timberlake, James; Wallick, Karl (2011). KieranTimberlake: Inquiry. Rizzoli International Publications. p. 256. ISBN 978-0847836789.
• Kieran, Stephen; Timberlake, James (2015). Alluvium: Dhaka, Bangladesh, in the Crossroads of Water. ORO Editions. p. 351. ISBN 978-1941806869.
• Kieran, Stephen; Timberlake, James (2019). Fullness. Phaidon Press. p. 608. ISBN 978-1580935548.

• Official website