Roxborough (that's where I live) would be the best area, but everything in that area is a single family home. However, there are some great rental opportunities available.
Otherwise, try Ken Caryl, Columbine, Powderhorn, or "old Littleton" for good locations. You could also look in the Westridge part of Highlands Ranch.
A good rule of thumb would be to stick on the c-470 area between Broadway and Quincy.