innovative adaptive collaborative intro

ID3A is a full-service architectural and interior design firm dedicated to the development of innovative and adaptive environments through a collaborative design process.  Founded by interior designer Stevanie Demko, ID3A brings over 35 years of design and construction experience to the industry.  We provide complete architectural and interior design services for all projects with an emphasis on creative design solutions and environmentally conscious concepts.




Our staff of professional architects and designers has the design experience necessary to service and maintain strong relationships with our clients.  In recent years, we have completed commercial, civic and educational projects for a variety of public and private clients throughout the state.  We pride ourselves on our repeat clients and believe our success is attributed to our attention to detail, technical experience, professionalism and creativity.

our services

Interior Design Services


Building Survey and Evaluation

Space Analysis, Planning & Design

Space Standards Development

Furniture Selection and Specification

Alternative Workplace Evaluation

Construction Documentation

Construction Observation

Post-Occupancy Evaluation

Architectural Services

Strategic Master Planning

Project Planning

Feasibility Studies

Base Building Survey and Evaluation

Site Analysis, Selection and Planning

Due Diligence

Schematic / Design Development

Construction Documentation

Construction Administration

2010 Best Interior Design Project Blue Ribbon Awards Real Estate Exchange Aetna Atrium Building
2014 Connecticut Building Congress Team Spirit Merit Award Charles H Barrows STEM Academy
2007 Community Spirit Award Quinebaug Valley Community College
2013 Best Design Project Blue Ribbon Awards Real Estate Exchange Gateway Community College
2018 AIA Connecticut Business Architecture Awards One State Street Cafe Hartford Steam Boiler
Quinebaug Valley Community College Aetna Atrium Building Gateway Community College Charles H Barrows STEM Academy
Aetna Customer Center
2013 Best Interior Design Project Blue Ribbon Awards Real Estate Exchange Hartford Hospital Kidney & Transplant Suite
2017 Connecticut Building Congress Team Spirit Merit Award One State Street Cafe Hartford Steam Boiler
2009 ABPM Award of Excellence World Class Briefing Centers Aetna Customer Center
2014 Best Overall Project Blue Ribbon Awards Real Estate Exchange Charles H Barrows STEM Academy
Charles H Barrows STEM Academy
sustainable design

ID3A is committed to designs that are responsive to the environment as well as the owners program requirements.  Buildings have one of the largest impacts on the ecosystem and we know that educated and experienced choices have a positive effect on the ecosystem.  Our experience allows us to make good choices by utilizing sustainable materials, systems and processes that are essential to minimize environmental impact.  Here are some key environmental considerations that we like to incorporate into all our projects:


Water Efficiency

Optimized Energy Performance


Construction Waste Management

Low Emitting Materials

Controllability of Systems

Day lighting and Views


LEED Certified Projects:

Charles H. Barrows STEM Academy

Windham, CT

MD Fox Elementary School

Hartford, CT

Robinson & Cole

Hartford, CT

Aetna Customer Center

Hartford, CT

Salisbury Bank & Trust

Millerton, NY

WELL Certification

WELL is the leading tool for advancing health and well-being in buildings globally. Register your office, building or other space to leverage WELL's flexible framework for improving health and human experience through design.


ID3A has WELL Accredited Professionals to guide you through the process.

our clients


Amica Mutual Insurance Company

Asnuntuck Community College

Avison Young

CBRE Realty Finance

Central CT State University

Conway Stoughton, LLC


Deloitte & Touche




First Light Power Resources

Gateway Community College


Goodwin College

Hartford Hospital

Hartford Steam Boiler

Jackson Laboratory

Kaman Aerospace

Konica Minolta Business Solutions

KS Partners

La Piastra

Loomis Chaffe School

MannKind Corporation

Mayo Crowe

Nanovirocides, Inc.

Northeast Utilities


Pacific Premier Bank

Pratt & Whitney

Quinebaug Valley Community College

Robinson & Cole LLP

Salisbury Bank and Trust

Stanley Black & Decker

Smiles for the Future

State House Square

State of Connecticut DCS

The Hartford

Town of Glastonbury

Tort Museum

Three Rivers Community College



Tsunami Tsolutions

Traveler’s Insurance Company

Union Saving Bank

Universal Enterprises

University of Connecticut

University of Hartford

University of Maryland

University of New Haven

US Coast Guard Academy

Virtus Investment Partners

Windham Public Schools

XL Center

Yale University