Historic Commercial Building in Hayden. Located at the major intersection of US 40 and Poplar Street in downtown Hayden, this 3,640 square foot, brick, two-story building is a blank slate waiting for a new commercial/mixed use. Flexible zoning accommodates office/retail/residential uses and the site allows for on-site parking and street side parking. Originally constructed as a Masonic Hall, it was recently utilized as a fitness facility, but retains many eclectic, historic elements. This building is well-maintained, with an open floor plan up and down, and a strategic location, making for a must-see commercial opportunity.