September 19, 2017


The chapter is governed by a board of directors that consists of seven to eleven local CNU members. Board members serve multi-year terms, and election results are announced at the chapter’s annual meeting.

Current Board of Directors

Cristina VanValkenburgh (President, Seattle)

Cristina Van Valkenburgh is the Mobility Programs Manager for the City of Seattle Department of Transportation (SDOT).  Her portfolio includes demand management strategies that provide transportation options for commuters, residents and visitors.  Cristina’s team implements Commute Trip Reduction and Transportation Management Programs focused on employers, employees and buildings, and recently launched a residential travel options program.  Cristina and her team also lead the City’s shared mobility programs, including bikeshare and active transportation strategies.  Prior to working at SDOT, Cristina focused on Land Use Planning and Policy, and was a Land Use Director for the cities of Naperville, Illinois, and Bellevue, Washington.


BL headshot 2015 cropped

Bill Lennertz (Vice President, Portland)

William Lennertz, AIA, of the National Charrette Institute (NCI) in Portland, Oregon, is the Executive Director and lead trainer at NCI. Mr. Lennertz co-founded NCI to help people create healthy communities by researching and teaching the art and science of NCI Dynamic Planning. Starting in 1986 as director of the Boston office of Duany Plater-Zyberk & Company, and later as a partner with Lennertz Coyle & Associates, Mr. Lennertz has directed over 150 charrettes nationally for public and private clients ranging from main-street revitalizations, town centers, and affordable housing, to complete new neighborhoods and communities. He is co-author of, and essayist in, Towns and Town-Making Principles (Rizzoli, 1991), and a contributor to the Charter of the New Urbanism. He has trained top staff from various public and private organizations including the U.S. EPA, U.S. General Services Administration, HDR Inc., URS Corporation, and Glatting Jackson. He received his Master of Architecture in urban design from Harvard University.


Shull headshot croppedJanet Shull (Secretary, Seattle)

Janet Shull has over 25 years’ experience in urban design and planning, focusing on community planning, non-motorized transportation, affordable housing and economic development. After she received her Architecture degree from the University of Washington, she found her interests in community building and placemaking were better suited to a career in urban design and planning.  She has honed these skills with professional experience in both public and private sectors, and through her service as a planning commissioner, and as a board member on several community-based non-profit organizations. She has led planning initiatives with a focus on healthy and sustainable communities, including the development of a citywide bicycle and pedestrian master plan, and urban agriculture policies and programs.  Janet has most recently been working on urban design and planning efforts in Seattle’s U District and Capitol Hill neighborhoods.


Greene_William MRED headshot croppedWill Greene (Seattle)

Will Greene works in real estate development in Kirkland, Washington, handling land entitlements and land feasibility for a residential developer-builder. He graduated from Arizona State University with a degree in Business, Sustainability, and Economics in 2012 and a Masters in Real Estate Development (MRED) in 2015.  He previously worked for the Sierra Club, lobbying local and state governments to accelerate America’s transition to a clean energy economy and to fight the causes of climate change.  Will grew up on Bainbridge Island in Washington and currently lives in Seattle.


Lampber-ThumbMatthew Lambert (Portland)

Matthew Lambert is a Partner at DPZ (Duany Plater-Zyberk & Co.). He began with the firm in 2000 while finishing studies in architecture and computer science at the University of Miami. In DPZ’s Miami office, Matthew managed numerous urban design and regulatory projects as well as the company’s computer infrastructure. Matthew moved to Portland in 2015 to focus on DPZ’s work in the US West, Asia, and Pacific.
Matthew’s professional work has covered a wide gamut of planning and regulations throughout the US and abroad, participating in over 80 design charrettes for public and private sector clients. In addition to urban design, he has focused on form-based coding, serving on the board of the Transect Codes Council and regularly contributing to CNU’s Form-Based Codes 202 educational sessions. He also served as an early leader and steering committee member for CNU NextGen, striving to broaden the reach of CNU and its message.


Stephen Poulakos

Stephen Poulakos (Seattle)

Since Stephen’s arrival to Seabrook, Washington, in summer of 2004, he has emerged as a specialist in the implementation of new resort town villages based upon principles of new urbanism and context sensitive landscape design. With a bachelor of landscape architecture from Auburn University his distinguished career has included the provision of premium landscape design services and construction supervision for several esteemed American resort properties. His portfolio has included private estate design and construction supervision of two celebrated new urbanism developments located in Northwest Florida (Draper Lake Coastal Village and Rosemary Beach). Both Draper Lake and Rosemary Beach’s town plans were designed by the highly acclaimed and internationally recognized DPZ (Duany Plater-Zyberk) town planning company. Stephen’s role in both developments included the management and implementation of the DPZ architectural code documents and the overseeing the implementation of a majority of civic amenities such as parks, pools, and other resort amenities.   Both projects receive worldwide recognition and study today.

In 2004, Poulakos departed Northwest Florida for the great Pacific Northwest where he has brought his broad knowledge of new urbanism and design code management to Seabrook where he both lives and works today. Here, he has successfully managed the amenity phasing and creation of Seabrook’s multiple neighborhoods, parks and civic amenities. Instrumental in establishing the “place-making” principles of the town’s master plan, he has worked alongside recognized town planner, Laurence Qamar and town founder Casey Roloff to create the Seabrook we all know today. Poulakos has also influenced the town’s architectural style by providing on-site builder guild training, historic precedent analysis, architectural review services, aesthetic guidance, new urbanism education and representation, special project design, and overall implementation of the Seabrook Design Code. He ensures no design detail is overlooked. Active on various social media platforms, his reach to Seabrook buyers and guests tells the story of Seabrook and a Pacific Northwest lifestyle with a design eye. He has also provided planning services for other aligned projects such as The Lookout in Lake Chelan and Olivia Beach on the Oregon Coast. In addition, Stephen has volunteered for regional professional organizations as well as having served on multiple local boards and committees to better serve the greater Grays Harbor Community and to enhance Seabrook’s image throughout the region.


Jonathan WinslowJonathan Winslow (Seattle)

Jonathan Winslow is an architect at Ankrom Moisan Architects in Seattle and works on urban mixed use and transit-oriented development projects. Jonathan previously lived in Portland where he was very involved in the active transportation community, including sitting on the Portland Pedestrian Advisory Committee and co-chair of the Northwest Portland neighborhood transportation committee. Additionally Jonathan was a co-founder of Better Block Portland, a grassroots organization showcasing the possibilities of low-cost, quick, community-driven transformations of excess street space into inviting urban public place.

Jonathan holds a Bachelor of Architecture degree from the Rhode Island School of Design and later received a graduate certificate in Real Estate Development from Portland State University.