*** Property for sale in United States, Property for sale in Colorado, Property for sale in Littleton: Apartments for Rent *** Listed by: 5151 Downtown Littleton *** Last Modified on: 2018-10-13 10:45:43 Luxury Living in the heart of downtown Littleton, Extraordinary residences in an enviable location. - 5151 Downtown Littleton offers comfort, convenience, and casual sophistication; our thoughtfully designed one, two, and three-bedroom apartments in Littleton, Colorado feature spacious floor plans.