Brett is the founding principal of gēnus [landscape architects].

His collaborations with renown architects, landscape architects, designers, and artists provide gēnus with seasoned experience and a unique approach to each design challenge. Brett brings over 12 years of experience at a variety of project scales from city-wide park planning, community visioning, and campus master plans to intimate courtyard gardens, sustainable design principles, and detailed park design. An Iowa State University graduate, Brett has practiced in a variety of office settings in Des Moines, as well as in the Boston, Massachusetts offices of Michael Van Valkenburgh Associates, Carol R. Johnson and Associates and Geller DeVellis.

Brett is  the recent President of the Iowa Chapter of the American Society of Landscape Architects. He serves on the Friends of the Botanical Center Board.  He also serves as a Heritage Carousel Board Member, and is active on the Terrace Hill Site Committee and the Trees Forever Des Moines NeighborWoods Steering Committee.