In 2000, we founded A4 Architects with the aim of doing architecture, land planning and interior design that is sustainable, practical, appropriate and delightful. Our practice is broad, ranging from the planning of new urban neighborhoods to the detailing of interior spaces. We can help you with feasibility studies, building design or renovations. One partner consistently manages each project, but our collaboration means we share ideas, inspire one another, and provide back-up when necessary. We are clear in our thinking about design, but flexible in our search for the best solution for our clients. Please call us. We’d love to discuss your project. 

A4 Architects LLC   •   970.963.6760   •   242 N. 7th St. Carbondale, CO 81623   •   mail@a4arc.com




Olivia Emery is experienced in providing programming, design and contract administration services for institutional and residential clients. Before becoming a licensed architect in 1987, she worked in exhibition, graphic and advertising design in New York City and Los Angeles. She worked for Charles and Ray Eames in Venice California in 1978 and interviewed 125 California industrial designers and craftsmen for a book published by California Design Publications. At A4 Architects, Olivia has designed numerous houses and is the Project Architect on all Colorado Rocky Mountain School projects, including dormitories, a music rehearsal studio, and the adaptation of an existing building for a new library/learning center. She is married to A4 Principal, Michael Hassig. 




m hassig-bw.jpg


Michael Hassig is the primary technical expert for A4 Architects, as well as being a designer. Before starting professional practice, Michael was a carpenter and later spent a year as an “Artist in the Community” for in the Ohio Arts Council. His architectural experience includes planning work as well as the design and management of larger building projects – most recently Riverwalk on the Fryingpan, the Basalt Regional Library, the Carbondale Fire Headquarters, the New Castle Branch Library and FirstBank’s Glenwood Springs Branch. Michael brings a strong understanding of building mechanics as well as a reputation for creative problem solving to his work. He is a LEED Accredited Design Professional and served on the Board of the Community Office for Resource Efficiency (CORE). He was Mayor of Carbondale for eight years and is married to fellow A4 principal Olivia Emery. 




Brad Zeigel’s responsibilities at A4 Architects include conceptual design, design development, and the preparation of construction documents. He also often serves as A4’s field architect and construction administrator. Brad was the Project Architect on the recently completed Basalt Regional Library, the New Castle Library, and on buildings for the Carbondale and Rural Fire Protection District. He served for four years as a School Board Member for the RE-1 Roaring Fork School District, where he oversaw construction valued at over 92 million dollars. He is currently pursuing certification in both Botanical Illustration and Rocky Mountain Gardening from the Denver Botanic Gardens.