Cornelia Hahn Oberlander (2016)

It is with great sadness that the CSLA announces the passing of Cornelia Hahn Oberlander on May 22nd, 2021.

Tribute to Cornelia Hahn Oberlander, 3 October 2021




Cornelia Oberlander, landscape architecture icon, dies at age 99

Landscape architect behind Vancouver’s beach logs awarded city’s highest honour

Landscape Architecture Pioneer Remembered

Cornelia Hahn Oberlander - Landscape Architect

Cornelia Oberlander, icône de l'architecture de paysages, meurt à 99 ans

Visionary Cornelia Oberlander helped define the field of landscape architecture

Click here to watch the tribute to Cornelia Hahn Oberlander


"The Art of the Possible": Cornelia Hahn Oberlander is Honored with the Inaugural Governor General’s Medal in Landscape Architecture

Ottawa – Apil 26th, 2016 - Today, the Canadian Society of Landscape Architects (CSLA) is pleased to announce that Cornelia Hahn Oberlander, O.C., MBCSLA, FCSLA, FASLA, has been selected by the jury as the inaugural recipient of the Governor General’s Medal in Landscape Architecture.

Read the press release

About the Governor General's Medal in Landscape Architecture

The Governor General’s Medal in Landscape Architecture (GGMLA) is the highest honour bestowed on a landscape architect by the CSLA. The medal is intended to honour exceptional landscape architects whose lifetime achievements and contributions to the profession have had a unique and lasting impact on Canadian society.

About Cornelia Hahn Oberlander, by Virginia Burt, OALA, FCSLA, FASLA

Cornelia Hahn Oberlander was born in Muelheim-Ruhr, Germany, and immigrated to the United States as a child with her mother and sisters. Building upon an early interest in landscape, she earned a Bachelor of Arts degree from Smith College in 1944 and continued her studies in the Landscape Architecture Program at Harvard University’s Graduate School of Design, graduating in 1947 as one of its first female landscape architects. Schooled at Harvard during the tenure of architect Walter Gropius, and later employed at Dan Kiley’s studio in Charlotte, Vermont, she embraced modernist ideas and values that encouraged collaboration across disciplines – a concept that became an Oberlander hallmark. 

Cornelia has been concerned for the public’s welfare throughout her career. In the early 1950s, she worked as a community planner for the Citizens’ Council on City Planning and on public housing projects with architects Oskar Stonorov and Louis Kahn. In 1953, she moved to Vancouver, B.C. and continued her work in public landscapes, including designing the Children’s Creative Center for Expo 67 in Montreal.  The Expo 67 commission led to her participation in the creation of national playground guidelines and the design of more than seventy playgrounds across Canada. 

In the 1960s, Cornelia founded her own firm which quickly became known for collaborative, socially responsible, and environmentally thoughtful design. As part of her design process, Cornelia thoroughly researches each site on which she works and embraces new technologies to address issues of sustainability and climate change.  Her belief that great projects stem from the integration of landscape and architecture has resulted in numerous collaborations with noted architects including Arthur Erickson, Bing Thom, Moshe Safdie and Renzo Piano. For instance, Cornelia’s more than 35-year collaboration with Arthur Erickson, Canada’s most renowned architect, resulted in many noteworthy projects in Canada and the U.S. including Vancouver’s Robson Square Provincial Government Center and Courthouse Complex, The Museum of Anthropology at the University of British Columbia, and the Canadian Chancery in Washington D.C.

Cornelia has practiced landscape architecture for more than sixty years and has played a seminal role in the evolution of modernism in the context of architecture, landscape architecture, and planning.  Throughout her career, Cornelia has championed design that reflects a strong understanding and respect for cultural and environmental context.  Many ideas hailed as groundbreaking today, such as the importance of exposure to nature and the creation of opportunities for social interaction, formed the foundation of her design philosophy decades ago.  Fellow professionals deeply respect Cornelia’s mastery of the design process from development to construction.  Yet when asked about her work Cornelia describes it humbly as “an evolving experiment…the art of the possible.”  For more than sixty years, the creator of this “art of the possible” has been an influential leader in building places and policy that support an intimate and beautiful connection with the natural world.

Cornelia has been honoured with many prestigious awards including The Order of Canada in 1990 and Officer of the Order of Canada in 2009, Canada’s highest civilian honor for outstanding achievement and service to the nation.  She is a Fellow of the Canadian and the American Societies of Landscape Architects, as well as the International Federation of Landscape Architects.  In 2013, she was awarded the American Society of Landscape Architects Medal, the highest honor the American Society of Landscape Architects may bestow upon a landscape architect whose lifetime achievements and contributions to the profession have had a unique and lasting impact on the welfare of the public and the environment. In addition, Cornelia was awarded the Sir Geoffrey Jellicoe Award in 2011 from the International Federation of Landscape Architects.  This award recognizes a living landscape architect whose lifetime achievements and contributions have had a unique and lasting impact on the welfare of society and the environment, and on the promotion of the profession of landscape architecture.  These many awards honour Cornelia’s projects that have spanned Canada and the globe.

Selected Projects
National Gallery of Canada, Ottawa (1986-1989), in collaboration with Moshe Safdie, architect.

The landscape design for this national museum was inspired by the museum’s collection of the Canadian Group of Seven paintings and on the Taiga landscape of Northern Canada. As one critic noted at the time, “it’s as much a work of art as any in the building next to it,” giving visitors a glimpse of “the country’s soul.”

New York Times Building Courtyard, New York, NY (2007), in collaboration with Renzo Piano and HM White Architects

This interior courtyard, featuring the artful use of Northern Birch trees and planted mounds, is the focal point of the new headquarters of the New York Times.  Led by HM White Site Architects in coordination with Cornelia Hahn Oberlander Landscape Architects, as part of Renzo Piano Building Workshop and FX Fowle Architect's design team, it is considered the heart and soul of the headquarters building. Resting on Manhattan Schist bedrock as the building’s only unexcavated area, the courtyard is experienced by 360-degrees of uninterrupted views from a variety of surrounding public spaces and office spaces above.

VanDusen Botanical Garden, Vancouver (2007-present)

Oberlander working with Busby Perkins + Will Architects developed a Master Plan for new demonstration gardens and a visitor center which will accommodate a green roof.  Design choices for the building and the garden exhibit the best in environmental stewardship.
Susan Herrington, in her book Cornelia Hahn Oberlander, Making the Modern Landscape, wrote that “there is no fission between ecological and social needs or division between the necessity of pragmatic thought and aesthetic experience” in Cornelia’s work. In her designs, Cornelia considers the humanity and ecology of a place in turn and together, and does not separate practical use from experiential beauty.  Completed in 2011, it is certifed under the Living Building Challenge, the most advanced measurement of sustainability possible in the built environment. The surrounding areas of the landmark facility, which also has a living roof, range from a rainwater garden to woodland and meadow, each zone carefully designed and planted with native species that fourished when Captain George, Vancouver’s botanist, first began cataloguing the diverse region in 1792.

Online Interviews
Books about Cornelia Hahn Oberlander
  • Herrington, Susan. Cornelia Hahn Oberlander: Making the Modern Landscape. University of Virginia Press, 2014. 
  • Stinson, Kathy. Love Every Leaf, The Life of Cornelia Hahn Oberlander. Tundra Books. Toronto, Canada. 2008.   
  • Bastedo, Jamie. Protectors of the Planet: Environmental Trailblazers from 7 to 97. Red Deer Press, 2020.
Books by Cornelia Hahn Oberlander
  • Oberlander, Cornelia H., Elisabeth Whitelaw and Matsuzaki, Eva. Green Roofs – A Design Guide & Review of the Relevant Technologies.  Public Works and Government Services Canada.  2002. 
  • Oberlander, Cornelia H., and Nadel, Ira B.  Trees in the City.  Pergamon Press.  New York, 1977.   
Articles about Cornelia Hahn Oberlander
Carleton University Forum Lecture Series

On September 19th, 2016, Cornelia Hahn Oberlander was invited to join the winners of the 2016 Governor General's Medals in Architecture during a presentation at the Canadian Museum of History. The RAIC (Royal Architecture Institute of Canada) partnered with the Carleton University Forum Lecture Series, the Ottawa Regional Society of Architects and the Canada Council for the Arts to host the 12 ARCHITECTS on ARCHITECTURE public event, featuring the recipients of the 2016 Governor General’s Medals in Architecture. Ms. Oberlander was invited to join the presentation as the recipient of the Governor General's Medal in Landscape Architecture.

Rideau Hall Ceremony

On September 20th, 2016, at 2 p.m., Ms. Oberlander received the Governor General's Medal in Landcscape Architecture during a ceremony held at Rideau Hall, in Ottawa. Following her address, she was further honoured by a rousing standing ovation!

"For more than sixty years, (Ms. Oberlander) has been an influential leader in building places and policy that support an intimate and beautiful connection with the natural world.  ."
Gordon Smith, remarks made during the Governor General's Medal in Landscape Architecture ceremony held September 20th, 2016, at Rideau Hall, Ottawa.

Click here to read Mr. Smith's remarks at Rideau Hall

Click here to read Cornelia Hahn Oberlander's remarks at Rideau Hall

Photo credits for pictures below: MCpl Vincent Carbonneau, Rideau Hall, OSGG. © OSGG, 2016.

His Excellency David Johnston, Gordon Smith (CSLA President) and Cornelia Hahn Oberlander during the ceremony




After the ceremony, CSLA members and special guests enjoy the grounds of Rideau Hall

Photos by Jean Landry



Gala dinner

The Canadian Society of Landscape Architects (CSLA) in cooperation with the Landscape Architecture Canada Foundation (LACF) organized a dinner in honor of Ms. Oberlander. It was held on Tuesday, September 20th, 2016, at the Chateau Laurier Hotel, 1 Rideau Street, Ottawa at 6 o’clock in the evening. Tickets for this event included a $200 donation to the LACF.

Read Cornelia Hahn Oberlander's remarks at the gala dinner

"I  am very glad  to have attended this historical event that will change landscape architecture and landscape achitects' status in Canada.  This event will also support  and vilify the OALA pursuit of a provincial professional practice act.  It is wonderful that this event was not only about Ms Oberlander but also that her legacy of mentoring and educating young people on the environment will carry on with the LACF scholarship fund." -Doris Chee, President, OALA, and CSLA Member

View a slide show of Cornelia Hahn Oberlander's work prepared by Virginia Burt

Photos by Jean Landry


Special guest Ms. Joyce Murray, Member of Parliament for Vancouver-Quadra, and Cornelia Hahn Oberlander holding a letter from the Prime Minister of Canada, the Right Honourable Justin Trudeau.

Read the letter

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