Business Details
50+ Years
experience
Award-Winning Architectural Design Services in Colorado
Founded in 1973, Intergroup Architects has established itself as a leading commercial architectural, planning, and interior design firm. With over 50 years of experience and 11,000 completed projects, we prioritize client-centric design philosophies and formalized processes that emphasize project success criteria. Our team of principals and LEED-accredited professionals delivers holistic solutions for corporate facilities, multi-tenant buildings, and sustainable developments across the Front Range and beyond.We maintain a 14-year average staff tenure, ensuring continuity of expertise, and have cultivated an 85% repeat client rate through our commitment to blending creative design with practical functionality. Our iGTechnique methodology provides clear deliverables that address architectural fees, construction costs, and long-term project viability while maintaining a focus on minimizing risk through industry-leading design standards developed since 1974.
Services
Architecture
Interior Design
Sustainable Design
Construction Administration
Space Planning
Building Code Review
Feasibility Studies
Signage Design
Land Planning
ADA Compliance
Details
- Year established: 1973
Highlights and features
- We have completed over 11,000 projects since 1973 with 85% of work from repeat clients
- Our team includes LEED-accredited professionals and industry award winners
- We provide consistent principal involvement throughout every project phase
- We developed industry-standard design methodologies implemented since 1974
- We offer holistic project strategies addressing both immediate needs and long-term exit plans
Associations and certifications
- LEED (Leadership in Energy and Environmental Design)
What people say
Creative solutions
Budget adherence
Collaborative approach
Repeat client rate
Project outcomes
Services
Architectural Design
We create innovative commercial and industrial building solutions that balance aesthetic appeal with functional requirements. Our architects develop designs that maximize property value while meeting specific business needs. With expertise in Class A corporate facilities and multi-tenant developments, we ensure spaces support organizational growth and operational efficiency.
Sustainable Design
Our LEED-certified professionals implement environmentally responsible design strategies that reduce operating costs and environmental impact. We integrate energy-efficient systems and sustainable materials while maintaining design integrity. This approach creates buildings that meet current needs without compromising future generations' ability to meet theirs.
Construction Administration
We provide comprehensive construction phase services ensuring design intent is maintained throughout building processes. Our team conducts site visits, reviews contractor submittals, and addresses field issues to guarantee quality control. This oversight ensures final deliverables match approved plans and specifications.
Space Planning
We optimize interior environments to enhance productivity and workflow efficiency. Our space planning considers both current operational needs and future adaptability. We create functional layouts that support employee well-being while maximizing usable square footage for commercial tenants.
Feasibility Studies
We conduct comprehensive evaluations of potential development projects assessing technical, financial, and regulatory viability. Our studies identify potential challenges and opportunities before significant investments are made. This analysis helps clients make informed decisions about project pursuit and scope definition.
People
Chris Sibilia
Principal
With 38 years in architecture and 32 at Intergroup, Chris brings extensive industry knowledge. He focuses on client relationships and design excellence, ensuring projects meet both functional requirements and aesthetic goals while maintaining budgetary constraints.
Bill Smith
President
As President and Senior Principal, Bill has 39 years of architectural experience. He oversees firm operations and project delivery, emphasizing quality control and client satisfaction. His leadership maintains Intergroup's reputation for excellence in commercial design.
Tony Casey
Vice President
With 36 years in the industry, Tony specializes in complex architectural solutions. He manages project teams to ensure timely delivery while maintaining design integrity. His expertise spans multiple building types including healthcare and industrial facilities.
Collin West
Principal
A LEED-accredited architect with 19 years of experience, Collin focuses on sustainable design practices. He manages production teams and ensures technical accuracy in construction documentation while maintaining environmental responsibility in all projects.
Dale Skinner
Principal
With 39 years in architecture, Dale brings extensive technical expertise. He oversees project administration and quality assurance, ensuring compliance with building codes and standards. His experience spans commercial, industrial, and municipal projects of varying complexity.
Questions
What architectural services do you specialize in?
We specialize in commercial, industrial, and municipal building design including architecture, interior design, sustainable solutions, and construction administration for projects ranging from 10,000 to 200,000 square feet.
How does your design process work?
Our iGTechnique methodology includes five steps defining success criteria, addressing project viability, and providing decision-making direction through discovery, planning, design, documentation, and construction phases.
Are you experienced with sustainable design?
Yes, we have LEED-accredited professionals who implement environmentally responsible design strategies that reduce operating costs while maintaining design integrity and functionality across all project types.
How long have you been in business?
We've been designing successful projects since 1973, with our principals having cumulative industry experience dating back to the 1980s and maintaining an 85% repeat client rate.
Do you work outside Colorado?
While based in Littleton, Colorado, we manage national accounts and have completed projects in multiple states across the US for corporate clients and developers.
What makes your firm different?
Our consistent principal involvement, formalized project processes, and focus on long-term investment strategies set us apart, with 85% of our work coming from repeat or referral clients.
