BOULDER - OZ Architecture in Boulder is designing the commercial building, lofts and town homes for a mixed commercial and residential project in Old Town in Fort Collins.

Lagunita Cos., headed by Fort Collins developer Jon Prouty, and Dohn Construction Inc. will build Rooftops on the River on Willow Street, 9,000 square feet of retail and office space topped by six loft units and 18 town homes.

"We conceived Rooftops on the River in response to the increasing need for competitively priced residential properties well-suited to the recreational and urban lifestyles of those who choose to live and work in the heart of Fort Collins," Prouty said in a statement announcing the project.

Each residence will include a rooftop terrace with options for the addition of a master suite or rooftop den with wet bar option, and choice of designer-inspired interior finishes featuring hardwood floors and energy-efficient construction.