William Maclay - Vermont Architects and Planners
Choices in Sustainability

BillMaclayHeadshot PhotobyJohnEarle 150xWILLIAM T. MACLAY, FAIA, NCARB, LEED AP LinkedIn_Logo60px

Founding Principal

Bill Maclay, the founder and president of Maclay Architects, attended college in the 60's and like many others at the time was disturbed by social inequity and environmental problems. He pursued architecture as a career in order to make the world a better place. In 1970 he committed to using renewable energy to create a non fossil fuel based future.

In 1971, Bill moved to Vermont to develop, design and build one of the first renewable communities in the US. In the early 70's he designed and built innovative renewable and energy conserving projects that have been exhibited and published internationally. In the late 70's and up until 1981, he worked for other firms and then began his practice, both with other partners and as a sole practitioner.

In 1981, Bill began his current practice which has grown in size as well as diversity and complexity of projects. All projects since 1971 have been focused on innovation in environmental design. Project types have expanded from planning and single family residences to multifamily residential, commercial, and institutional projects.

Bill has lectured or taught at many colleges and universities. He has a B.A. from Williams College and a Master of Architecture from the University of Pennsylvania. He is a past President of the VT Chapter of the American Institute of Architects (AIA). He has served on the Board of Directors of the VT Businesses for Social Responsibility, The Yestermorrow School in Waitsfield, The Mad River Valley Planning District Steering Committee, and the Warren Planning commission. Throughout this time Bill has been a teacher, lecturer, and educator at colleges, universities, and conferences focused on environmental design. Bill and the firm have continuously been involved in research on all aspects of environmental design including sustainable design, indoor air quality, building science, material selection, and related issues.



Vermont #1273
Massachusetts #6532
New Hampshire #1829
New York #027224-1
NCARB #29,208


Bachelor of Liberal Arts, 1970 Williams College
Master of Architecture, 1977 University of Pennsylvania


Founding Principal, Maclay Architects, 1981-Present
Partner, Sanford Sellers & Maclay, 1977-1981
Designer, Architectural Association
Designer, Office of David Sellers
Designer/Developer, Dimetrodon


Advisory Board, Vermont Green Building Network (VGBN) (2004-Present)
Board of Directors, Vermont Businesses for Social Responsibility (VBSR) (1993-2002)
Chair, Public Policy Committee, VBSR, (1996- 2002)
VT Legislative Indoor Air Quality Subcommittee on School Buildings (1996-1997)
Board of Directors, Yestermorrow School, (1997 - present)
Sub-Committee Chair, State of Vermont Governor's Energy Efficiency Building Code Task Force (1996)
President, Vermont Chapter, American Institute of Architects (AIA) (1994-95)
Steering Committee Member, Lt. Governor Snelling's Coming Together Commission (1993)
Co-Chair, Architect, Contractors & Engineers (A.C.E.) Committee (1993-1995)
Board of Directors, Sugarbush Chamber of Commerce (1993-1996)
President, Mad River Valley Housing Coalition (1989)
Commissioner, Warren Planning Commission (1978-1987)
Committee Member, Mad River Valley Steering Committee (1979-1987)
Member, Northeast Sustainable Energy Association (NESEA)


Guest Critic/Speaker
NESEA, March 2008
Efficiency Vermont, Better Buildings by Design, February 2008
University of Pennsylvania, Graduate School of Architecture
Yale University, Graduate School of Art and Architecture
Nova Scotia Technical Institute
Dartmouth College Policy Resource Center
Hampshire College
Southern California Institute of Architecture
Williams College
New Alchemy Institute
Conway School of Landscape Design
Vermont Software Developers Alliance, Panelist, May, 2007.
Smart Growth Awards Selection Committee, Committee Member. (August 2006)
Northeast Sustainable Energy Association; Building Energy '06, "The Science and Art of Green - What's Working." (2006)
2005 Green Building Panel, "Solar Integration: Control, NRG." Interactive Panel Discussion and Power Point Presentation. (October, 2005).
New Models for Commercial and Industrial Development, "Thinking Outside the Big Box", South Royalton, VT (November, 2002)
3rd Annual Regional Sustainable Development Forum, MIT, Cambridge, MA, "Smart Growth On-the-Ground and Regenerative Design" (September, 2002)
Vermont Forum on Sprawl/Vermont Business Roundtable, Providence, RI, "Smart Growth On-the Ground: New Models for Commercial and Industrial Growth" presentation (September, 2002)
9th Annual Northeast Resource Recovery Association, Recycling Conference and Exposition, "Planning for Use of Reusable/Recycled Materials in Building Projects" (2000)
VBSR, "Responsible Development for the Next Century" (Feb. 1999)
VT Resource Participant, POETS (Partnership of Environmental Technology and Science) Environmental Economic Development Conference, (1998)
City of Vergennes - Design Charrette design team participant - (1998)
Central VT Chapter of Building for Social Responsibility - "Trends in Ecologically Minded Architecture" (1998)
Yestermorrow School, - Sustainable Design/Build Lecture Series (1993 - 1998)
Norwich University - "Sustainable design in Vermont" (1998)
Yestermorrow School - Ecological House Design Class - (1997 - 2000)
Norwich University - Yestermorrow Design/Build Studio in Sustainable Design (1997)
St. Lawrence University - "Sustainable design and opportunities in education" (1997)
Ball State University - Yestermorrow Design/Build Studio in Sustainable Design (1996)
Association of Vermont Recyclers - "Creating a Sustainable Materials Economy in VT" (1996)
American Lung Association - Indoor Air Quality in Schools Conference "Materials Selection for Indoor Air Quality" (1996)
Green Mountain Specifier, "Evaluating Green Products" (1995)
Vermont NAWIC Chapter 262, "Alternative Construction Materials and Chemical-Free Homes" (1995)
Purchase Connection 7th Annual Meeting and Education Seminar, "Greener Hospitals: Environmentally Responsible Actions for a Safer Workplace: Guidelines for a Healthy Workplace" (1995)
VTAIA Workshop, "Building Materials & Technology for a Healthy Interior Environment" (1994)
AGC Annual Meeting, "Indoor Air Quality: Myths, Facts, and Solutions" (1994)
VBSR, Annual Conference, "Environmental Design and Construction for Business" (1994)
American Society for Public Administration, "Overcoming Dilemmas in Public Governance" (1994)
VBSR, Annual Conference, "Recycling, Design, and Health in Buildings" (1993)
Builders for Social Responsibility, the Healthy House Workshop, "Toxicity in Standard Building Products and Furnishings and Practical Alternatives" (1993)
8th National Conference on Household Hazardous Waste Management, "Toxicity in Standard Building Products and Furnishings and Practical Alternatives" (1993)
New England Businesses for Social Responsibility, Annual Conference, "Healthy Work Environments: How to Improve Existing and New Facilities" (1992) Lieutenant Governor's Conference on Affordable Housing


Yestermorrow, Design-Build School (1983-Present)
Institute for Social Ecology (1981-1987)
Goddard College (1979-1980)



E. Ashley Rooney, Old Barns - New Homes, Selley Residence
Bardou, Patrick, Archi de Soleil
Carriere, Day, Solar Houses for a Cold Climate
Lee, Dr. Rainan, The Encyclopedia of Energy Building Design
Metz, Don, ed., Compact House Design
Milligan, Charles & Higgs, James, The Wizard's Eye: Visions of American Resourcefulness
Schurcliff, William A., Solar Heating Buildings: A Brief Summary
Watson, Donald, Designing & Building a Solar House: Your Place in the Sun
Schmid, Anne M., & Scoviak-Lerner, Mary, International Hotel and Resort Design
Canadian Wood Council, Wood Reference Handbook
Dickinson, Duo, Small Houses for the Next Century
Rosenfeld, Lucy, Amazing Space: Architect Designed Homes under $300,000


Business People, October '05, Feature article on William Maclay Architects & Planners: Zealous by Design
Builder Architect, Summer '05, William Maclay Architects U Planners, NRG Systems: An Architectural Tour de Force Refocus, The International Renewable Energy Magazine, November/December 2004, NRG Systems, Inc.-Wind Company opens green office building
Better Homes & Gardens-Bedroom & Bath, Summer 2004, Brothers house master bath
Mountain Living, January/February 2001, Selley house - Deer Hill
Custom Home, September 2000, Larsen Home
Woman's Day Specials - Home Building, Premiere Issue, Fall 2000, Larsen home
Fine Homebuilding, February-March 1985
Process #6
Progressive Architecture
L'Architecture d' Aujourdhui, September, 1977


Discover Health Channel - Healthy Home Show, January 19, 2001, Maclay home
Vermont Educational Television


Newspaper Articles:

Valley Business Journal, May, 2002, "Producing Value in the Workplace Through Green Building Design"
Burlington Free Press, May 1996, "The 'Green' House Effect"
Burlington Free Press, May 1994, "Mail-Order Prescription" Vermont Healthy Home
In Business, July/August 1994, "Designing for Cost Effective Control"
Rutland Business Journal, July/August 1994, "Indoor Air Quality"


St. Mark's School, Marlborough, MA
Francis Coburn Gallery, Burlington, Vermont
The Lamont Gallery, Exeter, New Hampshire
Fleming Museum, University of Vermont, 1989
Aesthetics of the Cold, Hallwall's Gallery, Buffalo, New York, 1983
Exhibit of New American Architects, Rome, Italy, 1979


Efficiency Vermont Energy Efficiency in Buildings Honorable Mention, 2008.
AIA-VT New Directions Award for an Eco-Resort Village in Costa Rica, 2007.
Vermont Forum on Sprawl - Smart Growth Award for Middlebury South Village, 2007.
VBSR Terry Ehrich Award for Excellence in Socially Responsible Business, 2007.
AIA-VT Proposed Project Citation - Rubenstein School of Environmental and Natural Resources, 2006.
Vermont Forum on Sprawl - Smart Growth Award for Groton Revitalization Project, September, 2006.
American Psychological Association, National Psychologically Healthy Workplace Award for the NRG Manufacturing Facility - Top Ten Practices for Green Building, January, 2006.
Vermont's Governor's Award for Environmental Excellence & Pollution Prevention for the NRG Manufacturing Facility, Environmental Excellence in Environmental Stewardship & Resource Protection, December, 2005.
Illuminating Engineering Society Design Awards, Award of Merit for the NRG Manufacturing Facility, April, 2005.
US Green Building Council, LEED Gold Rating for the NRG Manufacturing Facility, March, 2005.
AIANH, 2005 Integrated Design/Integrated Development Excellence in Sustainable Design Award for the NRG Manufacturing Facility, October, 2005.
Efficiency Vermont - Better Buildings by Design, Excellence in Comprehensive Building Design for the NRG Manufacturing Facility, February, 2005.
VT Chapter of the AIA, Honor Award for Excellence in Architecture for the NRG Manufacturing Facility, November, 2004.
Vermont Psychological Association (VPA): 2004 Psychologically Healthy Workplace Award for small businesses for The NRG Manufacturing Facility, 2004.
Efficiency Vermont, Excellence in Energy Efficiency Award, Best Integrated Solution for Phantom Laboratory, Honorable Mention, 2002.
Efficiency Vermont's, Best of the Best Energy Star Labeled Home - 2,000 to 3,000 sq. ft., for the Hanson Residence. Runner up, 2002.
VT Chapter of the AIA, People's Choice Award, Second Place, 1996, "Inn of Six Mountains Veranda."
VT Chapter of the AIA, Honor Award for Excellence in Architecture, 1995, "Hardwick Housing and Retail."
VT Chapter of the AIA, Honorable Mention Award for Excellence in Architecture, 1995, "Otte-Huling Residence."
VT Chapter of the AIA, People's Choice Award, First Place, 1995, "Larsen-Amsterdam Residence Entry."
VT Chapter of the AIA, People's Choice Award, Honorable Mention, 1995, "Inn of Six Mountains."
NESEA, Design Award for Multi-Family Housing, 1994, "Hardwick Housing & Retail."
VT Chapter of the AIA, Merit Award for Excellence in Architecture, 1992, "Inn of Six Mountains."