Union 9Seventy

970 28th St, Boulder, CO 80303

9Seventy is located in beautiful Boulder, CO on 28th St. across from campus. This idyllic location puts you steps from the University of Colorado, a jog to 29th St. Mall, a bike ride from Chataqua Park, and in the middle of everything else Boulder has to offer. When you get home and kick off your hiking boots enjoy the plethora of amenities 9Seventy has to offer. Take in some sun by the resort-style pool or get ready to hit the trails in the bike repair station. Hangout with friends in the clubhouse or break a sweat in the fitness center. 9Seventy offers studio, one, two, and three bedroom apartments. Each apartment is well appointed with hardwood style flooring, stainless steel appliances, modern fixtures, and in many cases balconies with breathtaking views. 9Seventy has raised the bar for apartment living in Boulder, CO. Contact us today to find your next perfect home!

Key Features

Eco Friendly / Green Living Features:

Currently there are no featured eco-amenities or green living/sustainability features at this property.

Building Type: Apartment

Last Updated: March 28, 2026, 2:14 a.m.

Property Manager: Greystar

Telephone: 720-680-3711

Property Website

All Amenities

  • Property
  • Clubhouse
  • Kitchen
  • Quartz Countertops
  • Stainless Steel Appliances
  • Health & Wellness
  • 24/7 Fitness Center
  • Heated Resort-Style Pool

Other Amenities

  • Spacious Layouts |
  • Upgraded Lighting Package |
  • Washers & Dryers in Unit |
  • Study Center |
  • Outdoor Cabanas w/Gas Grills |

Available Units


Floorplan Beds/Baths Rent Track
1x1-A 1.0 Bed/1.0 Bath
689 sf
0.0+
1 Available
1x1-B 1.0 Bed/1.0 Bath
611 sf
0.0+
0 Available
1x1-C 1.0 Bed/1.0 Bath
646 sf
0.0+
0 Available
1x1-D 1.0 Bed/1.0 Bath
577 sf
0.0+
0 Available
1x1-E 1.0 Bed/1.0 Bath
563 sf
0.0+
0 Available
2x1A 2.0 Bed/1.0 Bath
900 sf
0.0+
0 Available
2x1B 2.0 Bed/1.0 Bath
792 sf
0.0+
1 Available
2x1C 2.0 Bed/1.0 Bath
827 sf
0.0+
0 Available
2x2A 2.0 Bed/2.0 Bath
937 sf
0.0+
2 Available
2x2B 2.0 Bed/2.0 Bath
999 sf
0.0+
1 Available
2x2C 2.0 Bed/2.0 Bath
868 sf
0.0+
1 Available
2x2E 2.0 Bed/2.0 Bath
984 sf
0.0+
1 Available
2x2F 2.0 Bed/2.0 Bath
970 sf
0.0+
1 Available
2x2G 2.0 Bed/2.0 Bath
906 sf
0.0+
1 Available
2x2H 2.0 Bed/2.0 Bath
886 sf
0.0+
0 Available
2x2I 2.0 Bed/2.0 Bath
951 sf
0.0+
0 Available
2x2d 2.0 Bed/2.0 Bath
961 sf
0.0+
0 Available
3x2A 3.0 Bed/2.0 Bath
1,035 sf
0.0+
1 Available
3x2B 3.0 Bed/2.0 Bath
938 sf
0.0+
1 Available
3x2C 3.0 Bed/2.0 Bath
1,208 sf
0.0+
0 Available
3x3C 3.0 Bed/2.0 Bath
1,208 sf
0.0+
0 Available
970b22j 2.0 Bed/2.0 Bath
951 sf
0.0+
0 Available
Unit #113 2.0 Bed/2.0 Bath
951 sf
$0.00
Today
Studio 0.0 Bed/1.0 Bath
486 sf
0.0+
0 Available