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Trillium Architects

USGBC member

409 Main Street
Ridgefield, CT 06877


Service area: 200 miles

Service Area: Most of our work is in Lower Fairfield County CT and Westchester County NY. We have also design vacation and retirement homes in upstate NY, MA, ME, NJ, NC, CO and CA.


At Trillium Architects we design Fine Green Homes. Our tag line 'Beautiful Homes, Environmentally Inspired' says it all. We are concerned with creating high quality, extremely efficient homes with a high level of aesthetic appeal - as well as very efficient, well planned spaces that emphasize the joyful and healthy living of the inhabitants.

We provide full Architectural Services (design through construction administration) for:
1) New Homes
2) Renovation and Additions and
3) Deep Energy Retrofits

We believe deeply that you can live in your gorgeuous dream home and also have it be LEED certified or as close to Net Zero as you would like it to be and still live in the heart of Fairfield County or Westchester County or any other place you choose.

The partners at Trillium have 22 plus years of experience in both high end residential design and in living off the grid. We believe that the marriage of design and qualtiy efficient building construction and opperation is the ultimate goal in any home of quality.

We have designed 2 LEED registered homes that were built in 2010 and 2011. 1 will be certified LEED Platinum and the second will be certified either LEED Gold or Platinum. Both are in Fairfield County CT. We also have a home under construction which will recieve Energy Star and NAHB and HERS ratings. We have built several homes and renovation/ additions that could have met these standards but chose either not to certify or were built before such ratings were in common use for homes.

Most of our work is in Fairfield County but we also work in Westchester County, all of Connecticut and have designed retirement or vacation homes in upstate NY, Massachusettes, Maine, North Carolina, California and Colorado.


The partners at Trillium Architects were living, working and designing green long before green was a tag line and long before LEED certification existed. We hgave experience with
-straw bale houses, earth ship and passive solar degign from the early 90's,
-rammed earth construction and building your own solar panels from the mid 90's,
-constant advancement of educaation through attendance at building science conferences such as NESEA, Afoordable Comfort, EEBA,etc from the mid 90's,
-the incorporation of high-efficiency envelopes and building systems since our first super-efficent home in 1999.
- the continuous involvement with and re-assessing of the latest techniques in building science and green material selection.
-the continued evolvement of design skills and the awareness of what a house needs to be for a modern day family, couple or individual.
-the long and valued relationships we have built with the green building community around us, whether in highly experienced contractors, energy consultant, town building inspectors or fellow architects who are doing the same work we are in different parts of the country.
- numerous speaking engagements to the general public We teach the home owners how to prioritize their new constrcution, remodel or deep energy retrofit.
-numerous speaking engagements to the the trade regarding 'How to Design a Sustainable Home' and 'Integrated Design'.We teach other architects and builders how to do what we do.


Trillium Architects has on staff both registered Architect and LEED APs.

Principal Elizabeth DiSalvo has been a registered Architect since 1994 and holds and 5 year professional undergraduate degree in Architecture and a 4 year degree in Building Science from Rensellaer as well as a masters degree in Advanced Architectural Design from Columbia University.

We have various staff members from the fields of architecture and design whom also hold LEED AP status.

U.S. Green Building Council Member
U.S. Green Building Council Member

The U.S. Green Building Council is a 501(c)(3) non-profit community of leaders working to make green buildings available to everyone within a generation. More...