MAINSPRING is a real estate and business development firm based in Denver, Colorado. We build, own and operate places to work, live and play. We also establish, operate and invest in businesses that enrich our shared urban lifestyle.
We believe that the built environment should reflect the way we want to live, that it should be beautiful, built to last, and inspire creativity and productivity.
We build homes for people.
We create inspiring places to work, stay, and play.
We provide quality eating & drinking places.
A new hostel may be built across the street from the 30th and Downing transit station in Denver’s Five Points neighborhood. Denver-based Mainspring Development is planning to develop a five-story… READ MORE
The developer of RiNo retail complex Backyard on Blake wants to build a hostel in Five Points. Mainspring, led by Fiona Arnold, submitted a site-development plan to the city last… READ MORE
This little spot is nestled in the RiNo district and is another shining example of why this area is fricking cool. Feast your eyes, and try to contain your jealousy if… READ MORE
Getting into Denver’s housing market is not for the faint of heart—or wallet. Entry-level properties are few and far between, despite an influx of buyers eager for starter homes. “When… READ MORE
In her first project since stepping down as executive director of the Colorado Office of Economic Development and International Trade, Fiona Arnold is doing something that is rare in metro… READ MORE