Caleb Tobin is the principal of Duet Forma and president of Duet Build. With a background that spans architecture, construction, and project leadership, he guides residential projects from early feasibility through final completion — bringing clarity and discipline to every phase. Caleb’s ability to see a project from both the design side and the field side is what keeps complex homes on track and built exactly as intended.
Owner & Principal, Duet Forma | 2025—present
Duet Forma is the architectural branch of the Duet ecosystem, working in close collaboration with Duet Design and Duet Build to deliver fully integrated, high-end residential projects from concept through construction.
Owner & President, Duet Build | 2021—present
Leads all aspects of this high-end residential construction firm, including client relations, quality control, budgeting and finance, marketing and branding, long-term planning, and collaboration with industry partners.
Director, Construction Management & Support, Aurora Public Schools | Jul 2021—Mar 2025
A key member of the Support Services leadership team for one of Colorado’s largest school districts, overseeing operations and a budget for the Construction Management & Support Department — spanning Design & Construction and Environmental Compliance, a staff of thirteen, and project and operational budgets exceeding $100 million. Primary duties included long-term planning, addressing complex contractual and construction-related issues, and representing the district in interactions with governing agencies, district leadership, and the community.
Attorney, Construction and Real Estate, Faegre Drinker Biddle & Reath | Oct 2018—Jun 2021
Practice focused on a wide range of construction and real estate matters, with an emphasis on risk assessment and transactional work including reviewing, writing, and negotiating design and construction-related contracts. Worked directly with and advised sophisticated, multi-national clientele including general contractors, subcontractors, project owners, and real estate developers.
Senior Architect / Project Manager, U.S. Dept. of the Interior, Bureau of Reclamation | Jun 2011—Oct 2018
Principal designer and technical expert for all aspects of ground-up and major renovation projects designed in-house, including office buildings, visitor centers, water and wastewater treatment plants, pumping plants, operations and maintenance facilities, warehouses, and power plants. Resident expert in building codes, life safety codes, and federal accessibility requirements. Acting Group Manager of eighteen employees on a regular basis. Served on the Bureau’s Authority Having Jurisdiction (AHJ) team, reviewing applications for building and life safety code variances.
Military Construction Master Planner, State of Colorado Dept. of Military & Veterans Affairs | Jan 2010—Jun 2011
Practice focused on a wide range of construction and real estate matters, with an emphasis on risk assessment and transactional work including reviewing, writing, and negotiating design and construction-related contracts. Worked directly with and advised sophisticated, multi-national clientele including general contractors, subcontractors, project owners, and real estate developers.
Honorarium Instructor, Univ. of Colorado Denver, College of Architecture & Planning | Aug 2008—May 2009
Architectural Project Manager & Designer, NAKA Designs, LLC. | Nov 2007—Jan 2010
Architectural Designer, 4240 Architecture, Inc. | Dec 2005—Nov 2007
Registered Architect — Colorado #402389
Registered Attorney — Colorado #50408
LEED AP BD+C — Leadership in Energy and Environmental Design, Building Design + Construction
American Institute of Architects (Colorado) — Government Affairs Committee — Chairperson, 2024 & 2025; Member, Jan 2019—present
American Institute of Architects (Colorado) — ARCpac Board of Directors — Chairperson, 2025;
Member, 2024—present
American Institute of Architects (Colorado) — Member, 2006—present
National Council of Architectural Registration Boards — NCARB Certificate #70896
Colorado Bar Association — Member, general and construction law section, 2016—present
Juris Doctor | May 2016
University of Denver Sturm College of Law | Denver, Colorado
GPA: 3.52 | Class Rank: Top 9%
Certificate in Environmental and Natural Resource Law | Scholastic Excellence Award
Master of Architecture | May 2006
University of Colorado Denver, College of Architecture and Planning | Denver, Colorado
GPA: 3.91 | Dean’s List
Tau Sigma Delta Honorary Society in Architecture | Who’s Who Among Students in American Universities and Colleges
Bachelor of Science, Recreation Resource & Ski Resort Management | Aug 2000
Lyndon State College | Lyndonville, Vermont
GPA: 3.49 | Dean’s List
Associate of Science, Business Administration
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