Opendoor Share: Real Estate - Brokers Opendoor Visit Website 720 S. Colorado Blvd. Penthouse North Denver, Colorado 80246 (480) 720-9885 About Map About Opendoor's web-based platform aims to make it a very easy and seamless experience for a customer to sell their home and move in to their new home. No more logistical challenges or stress. What's Nearby? Distance: 5 10 15 20 25 50 mi.