Arapaho Hills Usonian by theDenverEye | Arapaho Hills, Homes, Usonian Beautiful Usonian home from Arapaho Hills, designed (probably) early-1960s by Mannon Associates. It includes a great example of a sensitive addition (to the left). Here is an earlier photo of the same house. Related Posts from theDenverEye!Usonian StoneworkArapaho Hills HouseArapho HillsFall PhotoLittleton UsonianArapaho HillsUsonian Roofline Leave Your Feeback! Submit your review Name: *Email: *Review Title: Rating: 12345 Review: * Required Field Check this box to confirm you are human.