ctbuh.org/papers Title: A Tale of Two Cities: Collaborative Innovations for Sustainable Towers Authors: John Lahey, Chairman, Solomon Cordwell Buenz Martin Wolf, Senior Principal, Solomon Cordwell Buenz Ron Klemencic, President, Magnusson Klemencic Associates Ola Johansson, Principal, Magnusson Klemencic Associates Subjects: Sustainability/Green/Energy Urban Design Keywords: Performance Based Design Residential Sustainability Sustainability Certification Publication Date: 2008 Original Publication: CTBUH 2008 8th World Congress, Dubai Paper Type: 1. Book chapter/Part chapter 2. Journal paper 3. Conference proceeding 4. Unpublished conference paper 5. Magazine article 6. Unpublished © Council on Tall Buildings and Urban Habitat / John Lahey; Martin Wolf; Ron Klemencic; Ola Johansson A Tale of Two Cities: Collaborative Innovations for Sustainable Towers John Lahey, AIA1, Martin Wolf, FAIA2, Ron Klemencic, P.E., S.E.3 and Ola Johansson, P.E.4 1Chairman - Solomon Cordwell Buenz, 2Senior Principal - Solomon Cordwell Buenz 625 North Michigan Avenue, Suite 800, Chicago, Illinois 60611 3President – Magnusson Klemencic Associates, 4Principal – Magnusson Klemencic Associates 1301 Fifth Avenue, Suite 3200, Seattle, Washington 98101 Abstract Tall residential buildings are integral to the establishment and maintenance of sustainable cities. The increased density these buildings offer is key to ending inefficient and environmentally counterproductive urban sprawl. Policies in a number of American cities encourage increased residential density and height, as well as new standards for sustainability. However, creative and sensitive responses to the design, engineering, and cost challenges posed by this complex building type are critical to its long-term acceptance and success. Two recent collaborations by Solomon Cordwell Buenz and Magnusson Klemencic Associates are examples of a collaborative multi-disciplined design approach allowing architect, engineer, and contractor to pioneer technology balancing maximum occupant comfort, sustainability, and the building’s economic viability. In Chicago, 340 on the Park is the city’s first and tallest all-residential tower to achieved LEED Silver certification. In San Francisco, One Rincon Hill is establishing new height [email protected] for residential [email protected] and raising green John Lahey Johnstandards Lahey, in AIA, the Bayis Chairman Area. Both of Solomon projects Cordwell present architectural Buenz (SCB), and leads engineering corporate innovations operations andthat firm-wide meet the demandsmanagement of fortheir SCB unique offices sites in and Chicago project and goals. San Moreover,Francisco. theyAs a exemplifPrincipal-in-Chargey the important of Design,role of hea multi-disciplinedoversees the design design of manyapproach of the firm’sto successfully residential, shape office, urban institutional, public policies hospitality encouraging and academic density and projects. sustainability. LaheyKeywords is recognized: high-rise, residential,as one of LEED,the country’s sustainable, leading performance-based experts on residential design high-rise and urban mixed-use buildings. Be- lieving that tall towers are a sustainable solution to urban density, John’s designs have been catalysts for the resurgence of livability in the American city. Since joining SCB in 1982, he has completed multiple projects across the country, including overDensity 20,000 and residential Sustainability units and over 6 million square feet of corporate office development. Recent projects include the 72-storyIn mixed-use the debate condominium over the tower,potential The successes Legacy at Millenniumor Table 1.Park Statistical in Chicago; arguments the twin for 55-storydensity (Source: and 45-story,One International Rinconfailures Hill of residentialtall buildings complex as ina Sansustainable Francisco solution, and the 57-storyAssociation Heritage of Public at Transport)Millennium Park mixed-use complex in Chicago.livability is a defining issue. The United Nations Population % journeys by Cost of predicts the world’s urban population is set to double in density/ foot, bike, journey/ Ronthe next Klemencic 50 years, leading many to conclude the quality of hectare mass transit % Ronlife withinKlemencic, an urban P.E., densityS.E., is isPresident central toof theMagnusson responsible Klemencic Associates, an award-winning structural andGDP civil en- gineeringuse of the firm world’s headquartered resources in (Source:Seattle, Washington.United Nations Ron earnedU.S./Canada his bachelor’s 18 degree in civil15% engineering from12.7% Purdue UniversityPopulation in Information 1985 and his Network master’s Cities degree and in structuralUrbanization engineering W. Europe from University 55 of California52% at Berkeley in 1986.8.3% He cameWorld to Urbanization MKA in 1992 Prospects). and was named President just six years later.Japan/ Hong Kong/ 134 62% 5.4% Over hisAs 20-year illustrated career, in Table Ron has1, myriad acquired statistics a reputation support among Singapore developers, architects, and contractors alike as an “idea guy,”that densewith creative cities are engineering more sustainable solutions, than value-added sprawl. Forinnovations, and an innate ability to see the big picture. Although extremelyexample: busy in his capacity as President, Ron has served as activeDecline Principal-in-Charge of Cities for $4.8 billion worth of projects in thex last population5 years alone. density The effectsincreases of his the involvement efficiency canof be seen inIn the the success post ofWorld a number War of IIhigh-rise building projects boom, world the- wide, includingutility thedistribution 73-story andHighcliff consumption Apartments on a cliff’s edgepromise in Hong of spaceKong; andthe 45-a white-picket and 57-story fenceresidential were towers very of Onex Rinconenergy Hill use in per seismically capita in activea single San family Francisco; home andis themuch newly part completed of the American51-story 111 dream. South WackerSuburbanization office tower in in Chicago.2.0 Ron’s to 2.5projects times can bethat found of ina 16high-density, states and 14 countries.the United States was a result of public policy decisions multi-family high-rise and initiatives that made life outside the city more Ron isx verynegative involved impacts in the onindustry, air and giving water presentations quality are and accessiblelectures almost and affordable monthly aroundfor the theeveryman. country –As and a result,world. He is an activereduced member in urban of thecenters Structural because Engineers of increased Associations the oftypical Washington landscape and change Illinois;d forever the American (see Figure Concrete 1). In- stitute; Urbanreliance Land on Institute; mass transit,and Young as President’swell as reduced Organization; and he is a former 5-year Chairman of the Council on Tall Buildingstravel and distances Urban betweenHabitat. home His accomplishments and work with CTBUH include organizing seven national or international conferences (including the 7th World Congress in New York), declaring Taipei 101 in Taiwan the “Tallest Building” in the world, and commenting on tall buildings to dozens of news media around the world. CTBUH 8th World Congress 2008 1 A Tale of Two Cities: Collaborative Innovations for Sustainable Towers John Lahey, AIA1, Martin Wolf, FAIA2, Ron Klemencic, P.E., S.E.3 and Ola Johansson, P.E.4 1Chairman - Solomon Cordwell Buenz, 2Senior Principal - Solomon Cordwell Buenz 625 North Michigan Avenue, Suite 800, Chicago, Illinois 60611 3President – Magnusson Klemencic Associates, 4Principal – Magnusson Klemencic Associates 1301 Fifth Avenue, Suite 3200, Seattle, Washington 98101 Abstract Tall residential buildings are integral to the establishment and maintenance of sustainable cities. The increased density these buildings offer is key to ending inefficient and environmentally counterproductive urban sprawl. Policies in a number of American cities encourage increased residential density and height, as well as new standards for sustainability. However, creative and sensitive responses to the design, engineering, and cost challenges posed by this complex building type are critical to its long-term acceptance and success. Two recent collaborations by Solomon Cordwell Buenz and Magnusson Klemencic Associates are examples of a collaborative multi-disciplined design approach allowing architect, engineer, and contractor to pioneer technology balancing maximum occupant comfort, sustainability, and the building’s economic viability. In Chicago, 340 on the Park is the city’s first and tallest all-residential tower to achieved LEED Silver certification. In San Francisco, One Rincon Hill is establishing new height standards for residential buildings and raising green standards in the Bay Area. Both projects present architectural and engineering innovations that meet the demands of their unique sites and project goals. Moreover, they exemplify the important role of a multi-disciplined design approach to successfully shape urban public policies encouraging density and sustainability. Keywords: high-rise, residential, LEED, sustainable, performance-based design Density and Sustainability In the debate over the potential successes or Table 1. Statistical arguments for density (Source: International failures of tall buildings as a sustainable solution, Association of Public Transport) livability is a defining issue. The United Nations Population % journeys by Cost of predicts