Most of our work is in Westchester County in New York and Lower Fairfield and Litchfield Counties in Connecticut. We have also done work in Upstate NY, Rhode Island, Massachusetts, New Jersey, Maine, North Carolina, and California.
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Elizabeth DiSalvo, AIA founded Trillium Architects in 2004. She is now the principle architect, chief visionary officer, and an owner at Trillium Architects Co-operative. Elizabeth grew up around the architecture field, so design has been a part of her life for as long as she can remember. She graduated with a five-year, professional architecture degree from Rensselaer and has a Master’s Degree in Advanced Architectural Design from Columbia University. She has been a licensed architect for more than 30 years and is registered in New York and Connecticut. She is a member of the AIA, NESEA, CTPH, PHNY, and the USGBC, and has been on the Board of Directors of the CT Green Building Council.
Before founding Trillium, Elizabeth gained vast experience working on large-scale projects including The Providence Zen Center a community with gardens, green houses, mediation and yoga halls, as well as a 20-unit-building with a commercial kitchen. Elizabeth also worked on the renovations of Grand Central Station, Rockefeller Center, the NYC Waldorf School, the new 60,000 sf Amherst College Life Sciences Building, and the new 55,000 sf PS499 Magnet School in Queens.
Elizabeth’s passion for architecture, sustainability, and community runs deep. On her travels, she designed and built a rammed-earth school in Nicaragua, and houses out of straw hay bales in Colorado. Closer to home, she designed a women’s shelter and organic urban farm in Bridgeport, CT.
Elizabeth is an expert in all aspects of green building including Passive House, Net Zero, LEED home design, passive solar, alternative fuel sources, and alternative building methods and materials. She speaks to the public and the building industry about prioritizing green residential construction.
Elizabeth lives in Ridgefield, CT with her husband and two dogs. She serves on the town’s Planning and Zoning Commission.
Dave Reilly, AIA Senior Architect Director of Production
Dave is a senior licensed architect, director of production, and owner at Trillium Architects Co-operative. He heads education and drawing at the firm. After receiving his Master’s of Architecture from Clemson University, Dave spent three years working in the Arizona desert at Arcosanti, which is a prototype arcology, integrating the design of architecture with respect to ecology. As a construction manager there, he organized crews and taught building skills and methods of sustainable construction.
Dave has extensive experience with resorts, restaurants and hotels, having worked on the Topping Rose House, a member of the Small Luxury Hotels of the World, which features a Jean-Georges restaurant. He was the lead field presence for his firm, delivering his skills in problem-solving to the design team. Dave has also worked at the American Museum of Natural History and the Loft Artists Studios and Galleries in Stamford, CT.
Keeping the lessons learned from the desert, he has long been a proponent of sustainable design and sees working with Trillium as an important part of building on those values.
Megan DuBois Loucas, AIA Director of Design
Megan, a licensed architect, is the director of design, and an owner at Trillium Architects Co-Operative. She joined Trillium in 2019 and became an owner in 2024. Megan is a Colorado native and has a BA in Film from Northwestern University. She worked in film and motion graphics in Los Angeles before receiving her Master’s of Architecture from UCLA in 2009. Megan is inspired by materiality and by midcentury architecture and its focus on nature.
Megan has worked on projects across the country and in Canada ranging from ground-up, single family residences to major renovations and retail and commercial fit-outs. Some notable projects include renovations of Richard Neutra’s Brown and Singleton houses, a Passive House gut renovation of the Fine Home Building featured house of 2020, design of the Vince stores in Westport, CT and New York City, and the design of a yoga and retail studio in Ridgefield, CT.
She moved from Los Angeles to Weston, CT where she and her husband renovated their house and are raising two little girls. If she had any free time, Megan would spend it building furniture or taking runs in her beautiful town. For the time being, she is honing her dress-up and make-believe skills and serving on the Weston Planning and Zoning Commission and the town’s Building Committee.
Darrell Soho, Director of Client Relations & Head of Materials
An owner at Trillium Architects Co-operative, Darrell is also the director of client relations and head of materials at the firm. Prior to joining Trillium, Darrell brought his interior design degree and experience to bear in sales and project management roles in commercial, residential, and hospitality design projects. His work in interiors has given him an integral understanding of how design affects a human being’s experience in a given space.
Darrell is passionate about working with only non-toxic materials and has extensive knowledge of and experience using Declare labeled and Red-List-free products. He brings this passion to Trillium every day when choosing materials, and has bolstered Trillium’s responsible material choices using his deep knowledge of material sourcing with respect to carbon impact, product efficacy, ethical supply chains, occupant health, and aesthetics.
Darrell has helped guide projects through LEED and Energy Star certifications and, as a former International Well Building Institute WELL-AP, has also taken part in WELL-certified projects.
In July of 2020, he and his family moved from Washington, DC to Connecticut to be closer to family. Outside of work he enjoys biking, rock climbing, photography, and mixology (‘not simultaneously.’)
Patrick Mulcahey
Patrick graduated from Norwich University with a Bachelor of Architecture Degree. Since graduating in 2002, he has worked in both high-end residential and commercial architecture firms, with projects ranging from moderate size single family homes to family great camps in the Adirondacks, to town planning and multi-use commercial buildings.
Patrick lives in Newtown, CT with his wife, two boys and two dogs. In his free time, he likes spending time with his family, enjoying the outdoors and improving his skills as an amateur woodworker.
Kevin Ligos
Kevin has more than 30 years of experience in the architecture field with a primary focus in commercial design. His experience includes restaurant design where he would take projects from inception to completion, including design, planning, contract bidding, field coordination and construction administration. Kevin transitioned to the aviation design field working as a project manager on several projects at airports across the country. He is excited about his next career phase with Trillium Architects and specializing in Residential Passive Homes.
Kevin has an A.S., Architectural Engineering Technology degree from Norwalk State Technical College. He and his wife along with their dog reside in Ridgefield, where he grew up. Kevin enjoys a vast array of music, live concerts, working on home renovations and spending time with family and friends.
Duncan Fox
Duncan graduated from the University of Oregon with a Master's degree in Architecture, specializing in sustainability. He started his career in New York City, working on large-scale residential buildings and commercial projects. Duncan is on his way to becoming a licensed architect, having completed his IDP hours and currently studying for his exams. He grew up nearby in New Canaan, CT and now lives in Bethel, CT with his girlfriend and two German Shepherds.
Outside of work, Duncan is quite the outdoorsman and enjoys skiing, surfing, fly fishing, hiking with the pups, and live music.
Seneca Gray
Seneca has a Master’s of Architecture from Tulane University. In New Orleans, she learned first-hand the importance of future-minded design for climate resilience and adaptation. She credits a majority of her passion for the built environment to her undergraduate degree in Art, Architecture and Landscape Studies from Smith College.
Although she grew up all around the country, her career brought her to Brooklyn, New York- specializing in single family residential design. She met her partner playing Ultimate Frisbee there, and now they throw discs for their dog. It excites her to be a part of the Trillium team, with full dedication to sustainable housing and exemplifying leadership in the field.
David Moore, AIA
David is a licensed architect and received his bachelors’ degree at the Syracuse University School of Architecture. Since graduating in 2005, he spent ten years in New York City working on residential and commercial projects prior to moving to Ridgefield to start a family with his high school sweet heart and open his own practice. Three children, two dogs and a cat later David is joining Trillium to be part of a team focused on improving the environment one project at a time and setting new standards for construction and sustainability through design.
Outside of work David loves to go camping with his family, and is a triathlete and off-road enthusiast.
Barbara Khorassani, Assoc. AIA
Barbara is a dedicated architectural professional with a Bachelor of Science in Architecture from The Ohio State University. Since graduating in 2015, she has designed and managed projects throughout the tristate area within residential, hospitality, education, public agency and industrial markets.
Outside of her professional pursuits, Barbara actively engages in continuing education and professional development opportunities, and is taking the Architect Registration Exam to further her professional qualifications. She resides in Westchester County, NY with her husband and Mini Goldendoodle, Henri. In her free time, Barbara enjoys spending time with family, going for runs and, of course, cheering on the Buckeyes. Barbara has cultivated a passion for integrating sustainability into her everyday life and is enthusiastic about applying her knowledge and skills to projects that redefine modern living through sustainable design practices.
Laurie Hepburn
Laurie is Trillium’s marketing and office manager. She graduated from Randolph-Macon College with a degree in English. Laurie comes from the world of television, having spent 15 years in the field as a senior producer for Martha Stewart Living Television, winning many Emmy awards along the way. Laurie traveled extensively around the country and the world for her role, producing more than 400 segments and shows for national broadcast. She has had a lifelong passion for architecture, design, landscapes, and gardens.
When not working, Laurie enjoys spending time with her family and animals, and shopping for plants!
At Trillium we design intelligent quality architecture and we endeavor to cultivate beauty and delight. We are trained in and highly aware of aesthetics and the human spatial experience. We believe in designing houses that you would be proud to leave your grandchildren. As unique as the people who occupy them; as beautiful as the natural world that surrounds them.
We believe in getting back to nature. The connection that we have with the land our house sits on can enhance our experience of our immediate environment and of nature at large. Deeper connection to nature and our immediate environment can lead to a deeper understanding of our impact upon our immediate environment as well as a deeper understanding of our house and how it works as shelter. The more our house works with its environment and the more we actively participate in the operation of our house as shelter- the longer the house will last.
We believe in healthy, efficient homes. We have done our homework on issues that are important to us such as the effects of what we do on the environment AND the effects our environment has on us. Our homes have great capacity to impact our health as well as the environment. Our homes need to provide us with a safe, comfortable living experience, but also they need to not contaminate us with toxins or allergens. We design houses using all natural, no-voc, non-toxic materials and we assemble them in ways that will not cause mold, mildew, or otherwise negative indoor air quality to occur. This is what we do:
GREEN HOMES . PASSIVE HOUSE . NET ZERO . LEED for Homes . LIVING BUILDING CHALLENGE.
Energy Star . Home Energy Rating System . Green Globes . National Green Building Standard
We have goals and ambitions for our work. We may make suggestions to enhance and improve your project which are more environmentally responsible, resource efficient, cost effective or that will manifest a healthier outcome. If you would like to know more about these subjects just ask! We love to talk about it - and we enjoy sharing all that we have learned in our years of schooling and experience.
We are an 'Intentional Company'. We do honest work for an honest fee. One client calls it 'Fair Trade Architecture'. At Trillium Architects - caring, high quality, well researched, and thoughtful work is our base starting point. On top of that, we bring experience, technical excellence and creative thinking to all that we do. We work in a team format with our clients and contractors. We do not participate in adversarial or dishonest business practices. We believe that what you give to the world, the world gives back to you. We believe that part of building healthy, efficient, and sustainable homes is maintaining a healthy, efficient, and sustainable business atmosphere. We hope that our level of caring and thoughtfulness is apparent in all that we do. If you find anyway in which we are lacking, please let us know.
PLEASE CHECK IN WITH OUR BLOG REGULARLY FOR THE MOST UP TO DATE INFORMATION + HAPPENINGS!
Trillium Architects ~ Fine Green Homes ~ Beautifully Designed ~ Environmentally Inspired
Sustainable Green Building Practices ~ Fairfield, Litchfield and Westchester Counties + Beyond
Design resilient homes: We will continue to build the most energy efficient and resilient structures as are financially responsible, and to evolve the definition of these as technologies and knowledge evolve.
Exceed energy codes: We will continue to only design buildings that exceed the most stringent US Energy Codes.
Design for net-zero energy: 100% of our new homes will be Net-Zero or Zero-Energy Ready.
Use low-embodied-energy materials: We vow to select both construction and finish material of low embodied energy in regards to all categories including but not limited to: manufacturing, production, shipping, assembly, lifelong upkeep, and landfill potential.
Use healthful materials: We will continue to avoid using building materials that are detrimental to our health or our environment, including vinyl siding and spray-foam insulation.
Provide excellent air quality: We will continue to ensure there is excellent indoor air quality in all our homes.
Build for the future: We will continue to create ‘Forever Homes’ that people love enough to never want to tear down.
Focus on quality of life: We will continue to work together to create positive, happy, work environments, job sites, homes, and gathering spaces.
Be an inspiration: We will continue to speak and write with the purpose of inspiring others.
Be the best we can be: We vow to never stop learning and growing, with the intention of always striving to make the world a better place.
The AIA (American Institute of Architects) 'Why Hire an Architect?'
Bob Vila 'Hiring an Architect'
Angies List 'Why Hire an Architect'
The Wall Street Journal 'Should You Hire an Architect'
