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Yountville Town Center

After years of planning, the completed Yountville Town Center weaves new and existing buildings and outdoor rooms into a place designed to enrich community life right on main street in the middle of town. The new Community Center building, housing a branch library, program spaces and a large multi-use room, opens onto a new Town Square framed on either side by the existing Community Hall and Post Office. Building exteriors blend with the rural character, while inside the spaces are light and airy. The large multi-use room is a pleasant surprise, day lit by a ridge skylight and supported by unique wood and cable trusses. Through collaboration, the design integrates a range of green features – passive design, efficient technologies and green materials – setting the project up for LEED Platinum and energy savings of 44% over Title 24. Since opening, the town center has become a hub of activity. By design and location, it serves as the town’s living room and a great source of civic pride.

In 1998 a small rural town embarked on a planning process that envisioned an expanded town center for its residents in the middle of town. This original vision of was broadened to include green features aimed at reducing the project’s carbon-footprint and serving as a local model for sustainable development. With intensive community participation and support, the project was opened in late 2009. Numerous sustainable design decisions – passive design, daylighting, efficient technologies, green materials and design of flexible multi-use spaces – have the project on track for LEED Platinum.

The new town center weaves new and existing buildings and outdoor rooms into a collection of spaces designed to enrich community life. A new town square, opening out from the new Community Center and framed by the existing Community Hall and Post Office, serves as both a civic venue and a place for chance encounters. The Community Center building houses a branch library, meeting and program rooms and a large, daylit multi-use space that accommodates everything from after-school programs to community celebrations. Barn doors extend the room onto the adjacent BBQ patio.

Building exteriors refer to the local vernacular with simple building massing, deep porches and familiar materials. Walks and bike paths connect the center to surrounding neighborhoods and main street activities. By location and design the town center the community’s shared living room and a source of civic pride.

Bioclimatic Design

Passive strategies include daylighting, shading and natural ventilation. The highly insulated building envelope includes low-e2 windows, exterior sunshades and “cool” standing seam metal roofs. Light-colored paving and ample tree canopy further reduce heat island effect and minimize cooling loads. A combination of operable skylights, controlled by CO2 and rain sensors, and windows provide natural ventilation and balanced natural illumination.

Energy-efficient systems feature ground-source heat pumps for heating and cooling and roof-mounted photovoltaic laminates for the new and existing buildings. Energy models predict energy savings of over 53% with PV’s providing 25% of power needs. Building controls serve interior rooms independently, maximizing energy efficiency and thermal comfort.

Water Conservation

Site design reduces storm runoff by 40% over pre-construction conditions. Water conserving plumbing fixtures reduce domestic water use by 30%. Harvested rainwater, drip irrigation, subsurface irrigation and drought tolerant native plants reduce irrigation water by 51%.

Building materials were selected to minimize life-cycle impacts, blend with the rural architectural character and provide light and airy interiors free of formaldehyde and VOC’s. Buildings are clad in durable, recycled content cement-fiber shingles and metal roofs. Porches and entrances are regionally harvested western red cedar. Slatted wood ceilings are locally sourced white pine. Over 75% of the wood is certified FSC.

Carbon reduction: Embodied carbon was reduced by 280 tons – 80 from the 70% slag concrete and 200 from reusing (and not replacing) the existing Community Hall. Annual carbon saving from operations is estimated at 80 tons – 50 from efficient mechanical systems and 30 from PV’s.

Notable Accomplishments

  • Harvested rainwater, drip irrigation, subsurface irrigation and drought tolerant native plants reduce irrigation water by 51%.
  • Water conserving plumbing fixtures reduce domestic water use by 30%.
  • Over 75% of the wood is certified FSC.
  • Carbon reduction: Embodied carbon was reduced by 280 tons.

Award Credit

Design Architect
Susi Marzuola, AIA
AIA East Bay #30148249
Timmons Design Engineers
Sean Timmons, Principal Engineer
901 Market Street, Suite 480
San Francisco, CA 94103
415-957-8788 Ext. 219
Landscape Architect
John Northmore Roberts Associates
John Northmore Roberts
2927 Newbury Street, Suite B
Berkeley, CA 94703
General Contractor
Swank Construction
Jerry Swank
222 Bella Vista Road
Vacaville, CA 95687
Civil Engineer
Coastland Engineering
Paul Klassen
Structural Engineer
Endres Ware Architects | Engineers
John Ware
Construction Manager
Pound Management
Leslie Alspach
Lighting Designer
Alice Prussin Lighting Design
Alice Prussin
Specifications Writer
Topflight Specs
Richard Fiory, AIA, CCS
Geotechnical Engineer
Miller Pacific Engineering Group
Michael Morisoli
Environmental Solutions
Glenn Rehbein Companies
Derek Lash, P.E., CPESC
Commissions Agent
Enovity, Inc.
Dean Francis
David Wakely Photography
David Wakely
544 Vermont Street
San Francisco, CA 94107


Zorana Bosnic, RIBA, LEED AP
Vice President and the Sustainable Design Director
San Francisco, CA

Zorana Bosnic, RIBA, LEED AP is a Vice President and the Sustainable Design Director with HOK in San Francisco. Educated at the Architectural Association School of Architecture, she started her carrier in London, joined HOK in Hong Kong and then moved to San Francisco office in 1999. As a Senior Project Designer she worked on numerous projects in Europe, South East Asia, Middle East and West Coast USA. Her expertise includes projects in office, corporate commercial, campus design, and hospitality sector. She has a keen interest in sustainable design technologies applied to façade engineering, focusing on energy savings and daylight enhancement technologies. To ensure the practice maintains its expertise, Zorana combines her project design work at HOK with research and active participation in international sustainable organizations, as well as promotion of sustainable practices throughout the community. She brings her breadth of design leadership, technological knowledge and an international perspective to this key role at HOK.

Kevin deFreitas, AIA
Kevin deFreitas Architects
San Diego, CA

A native of San Diego, Kevin deFreitas is a licensed architect and developer who is extremely passionate about the quality of the built environment. Kevin deFreitas Architects, AIA was established in 1998 as a multi-disciplinary practice to expand beyond the traditional boundaries of design, allowing the firm to self-develop several experimental and innovative urban in-fill projects that otherwise would not have been achievable. Understanding architecture to be the art of listening to both the client and the site, and the craft of solving problems elegantly, the firm’s portfolio contains appropriate, creative, and sustainable designs. These range from institutions and retail, to private homes and interiors, and have been widely published and recognized for clearly expressing optimism, a meaningful connection to place, straight forward materiality, thoughtful sustainability, and a strong visual presence. Kevin’s collegiate studies began at the University of San Diego and culminated when he graduate cum laud with a Bachelor’s of Architecture from the University of Arizona in 1992. Along the way he studied at Cal Berkeley and Syracuse University’s study abroad program in Florence Italy. Kevin’s education continues; every project, and each client, presents new opportunities to learn and grow.

Randy Hanna, AIA
ARCHITECTS Hanna Gabriel Wells
San Diego, CA

A principal of ARCHITECTS hanna gabriel wells, Randy Hanna is active in community and his profession.

Mr. Hanna has over 24 years of architectural experience with a multitude of building types. He has been instrumental in the design of several College & University projects, Corporate Office Campuses, Institutional facilities and specialty projects ranging from grocery stores to rowing clubs. ARCHITECTS hanna gabriel wells are proven leaders in sustainable design– their projects reflecting deliberate efforts towards environmental responsibility. Of note, their own office was designated as San Diego’s first “Net Zero Energy” commercial building and received LEED Gold Certification. The firm has received numerous design awards for their work. Randy was instrumental in establishing the San Diego AIA Chapter Design Awards program and served as chair for three years. He also served for two years on the CCAIA Awards committee. His involvement with education continues through his involvement as a guest juror for Arizona State University, Woodbury University and the New School of Architecture in San Diego.

Dan Heinfeld, FAIA
LPA Inc.
San Diego, CA

President of LPA Inc., Dan Heinfeld has been the partner in charge of design since 1986 and is responsible for the overall design direction of the firm. During his tenure as President, LPA has been recognized with 118 AIA awards from national, state and component chapters with an unprecedented 33 years of continuous recognition from the AIAOC Chapter. Heinfeld has made sustainable design the focus of his career and the firm’s as well. A LEED accredited professional since 2001, Heinfeld has lectured to community groups and development organizations, which include California State Polytechnic University, Pomona; California State University, Fullerton; and the University of Arizona. His message revolves around the importance of sustainable design and its legacy on the condition of our physical environment. Through Heinfeld’s leadership, LPA has completed 12 LEED certified projects with another 12 in construction and 30 more in design/construction document –all in the state of California.

Brad Jacobson, AIA, EHDD
EHDD Architecture
San Francisco, CA

Brad Jacobson, LEED AP, AIA, currently leads some of EHDD’s high performance projects including a zero energy, LEED Platinum office building for the David & Lucile Packard Foundation and the carbon neutral Nevada State College Master Plan. He served as Project Architect on Carnegie Institution’s Global Ecology Research Center, an interdisciplinary research center at Stanford University that reduced carbon emissions from energy and materials by over 60% and was named a National AIA Top Ten Green Building in 2007. Brad was Project Manager on Stanford’s Kavli Institute for Particle Astrophysics and Cosmology, a 25,000 square-foot research facility featuring exceptional daylighting and an underfloor air distribution system, and completed a feasibility study, sponsored by Stanford University’s School of Engineering, for an innovative dormitory and research laboratory designed to test and demonstrate sustainable building methods and technologies. Brad received his Bachelors of Arts in Urban Studies from Stanford University and a Masters of Architecture from the University of Pennsylvania. He is co-founder of Bay Area Leadership in Sustainable Architecture, or BALSA, which brings together leading architects to accelerate progress towards a sustainable future. He taught a course entitled “Green Architecture” at Stanford University’s School of Engineering from 2003-2008.

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