Trillium Architects is here to help you create the peaceful, light-filled, clean and healthy house that will serve as home base for your organic lifestyle.


Enter a Trillium house and breathe easy.  Let the kids and dog lie on the floor.  Spend your weekends doing anything but home maintenance.  Enjoy the light filled open spaces. Brag about the fact that your utility bills average about $30 per month all year long.


We are committed to designing the most energy-efficient and environmentally responsible homes possible


  100% of our new homes are Net Zero or Zero Energy Ready.  We use Passive House standards as the baseline for insulation and air-tightness.  We vow to only use healthful, low-embodied-energy building materials and finishes.  We never stop learning and striving to make our homes the best they can be.


Our commitment shows in these award-winning homes:

We believe in healthy, efficient homes.

We have done our homework on the effects our lives have on the environment and the effects our environment has on us. The homes we live in 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 other detrimmental effects to indoor air quality.

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 the world around us, as well as a deeper knowledge of our house and how it works as shelter. The more that our house is in harmony with its environment, and the more we actively participate in the operation of our house as shelter, the longer the house will last.

Having the right team with the right attitudes makes all the difference


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. 



The following resources will help you get your bearings before designing and building (or remodeling) a home:


Design, Drawings, & Administration

3 Phases of Working with an Architect

Creating a home is a collaborative process. We want you to be familiar and comfortable with every step in the process, from the initial meeting—where we start to discover your needs and wants—to drafting of construction documents to overseeing the construction of your new home.

Architects' Fees

A Breakdown of the Costs of Designing a Home

We have a straightforward system with clearly specified fees for every service we provide. We bill for design on an hourly basis, while the bulk of the services we provide—surveying, drafting, engineering, and construction administration—are charged as a percentage of the project budget.


Pre-Design Questionnaire

Clarify your needs, wants, and goals

It's good to start with questions, not answers, when trying to figure out what should and shouldn't be included in your new home. This comprehensive list of questions will help you put your needs and wants in perspective, and help us get you started on the home-design journey.

Construction Costs

3 ways to estimate how much you will spend 

We can offer a free ballpark figure based on the size and type of your project, provide a detailed estimate for a fee, or request an estimate from a reputable builder. Our construction-costs page has some numbers based on past projects plus a detailed description of the 3 options.

We only build high performance homes and have worked with Trillium Architects on multiple projects with great success. Trillium provides the green focus essential for a thoughtful/creative design helping clients focus on the important details. One our more recent Trillium projects was a Passive House, currently pre-certified, with certification pending.
— BPC Green Builders - Wilton, CT
Trillium has a strong commitment to delivering a sophisticated and intelligent design. Their commitment to using sustainable materials is commendable. Yet at the same time, they are careful that it is never about them and their priorities. Trillium always kept our dreams and priorities at the top of the list!
— Modern Hillside Net-Zero Home - Ridgefield, CT

Serving Fairfield, Westchester, and Beyond

With our office in the center of downtown Ridgefield, CT, most of the homes Trillium Architects has designed are in Fairfield, Litchfield, and New Haven Counties in Connecticut, and Westchester, Putnam, and Dutchess Counties in New York's Hudson Valley, but we have clients in California, Rhode Island, and many places in between.