Skip to content
Main mobile logo
  • Photo - Union 9Seventy

Union 9Seventy

970 28th St, Boulder, CO 80303

(38)
Floor Plan Summary
Total Monthly Price Bedrooms Bathrooms
$1,568 - $2,512 1 - 2 1 - 2
11 Month Lease

Pricing and Floor Plans

Rent Estimate
Cost Calculator: Estimate your monthly and one-time fees.

1x1

$2,512
1 Bed, 1 Bath
689 Sq. Ft.

Show Floor Plan Details

Aug. 17
Unit
Total Price
Sq. Ft.
Available
Private
$2,512
689
8/17/26

2x2-A

$1,568
2 Beds, 2 Baths
937 Sq. Ft.

Show Floor Plan Details

Aug. 17
Unit
Total Price
Sq. Ft.
Available
Private
$1,568
937
8/17/26

2x2B

$1,618
2 Beds, 2 Baths
999 Sq. Ft.

Show Floor Plan Details

Aug. 17
Unit
Total Price
Sq. Ft.
Available
Private
$1,618
999
8/17/26
* Price shown is total price based on community-supplied monthly required fees. Excludes user-selected optional fees and variable or usage-based fees and required charges due at or prior to move-in or at move-out. View Fees and Policies for details. Price, availability, fees, and any applicable rent special are subject to change without notice. * Square footage definitions vary. Displayed square footage is approximate.

Applicant has the right to provide the property manager or owner with a Portable Tenant Screening Report (PTSR) that is not more than 30 days old, as defined in § 38-12-902(2.5), Colorado Revised Statutes; and 2) if Applicant provides the property manager or owner with a PTSR, the property manager or owner is prohibited from: a) charging Applicant a rental application fee; or b) charging Applicant a fee for the property manager or owner to access or use the PTSR.

Details

Lease Term Options

  • 12 mo

Property Information

  • Built in 2015
  • 138 units / 4 stories

Fees and Policies

The fees below are based on community-supplied data and may exclude additional fees and utilities.

Utilities & Essentials

  • Utility - Electric
    Varies / mo
    Disclaimer: Utility apportionment is direct metered.
  • Utility - Gas
    Varies / mo
    Disclaimer: Utility apportionment is allocation: sq footage of unit.
  • Trash Services - Hauling
    $6 / mo
  • Utility - Billing Administrative Fee
    $6.44 / mo
  • Utility - Water/Sewer
    Varies / mo
    Disclaimer: Utility apportionment is allocation: number of occupants in unit.

One-Time Basics

Due at Application

  • Application Fee
    $35

Property Fee Disclaimer Total Monthly Leasing Price includes base rent, all monthly mandatory and any user-selected optional fees. Excludes variable, usage-based, and required charges due at or prior to move-in or at move-out. Security Deposit may change based on screening results, but total will not exceed legal maximums. Some items may be taxed under applicable law. Some fees may not apply to rental homes subject to an affordable program. All fees are subject to application and/or lease terms. Prices and availability subject to change. Resident is responsible for damages beyond ordinary wear and tear. Resident may need to maintain insurance and to activate and maintain utility services, including but not limited to electricity, water, gas, and internet, per the lease. Additional fees may apply as detailed in the application and/or lease agreement, which can be requested prior to applying. Pets: Pet breed and other pet restrictions apply. Rentable Items: All Parking, storage, and other rentable items are subject to availability. Final pricing and availability will be determined during lease agreement. See Leasing Agent for details.

Matterport 3D Tours

Explore Commute Options

Destination Address
  • Drive Time
    --
  • Walk Time
    --
  • Bike Ride Time
    --
  • Public Transit
    --

Property Highlights

  • Central Heat/Air
  • Gated Garage Parking Available
  • Hardwood-Style Flooring with Carpet in Bedrooms
  • Heated Pool with Sun Lounge Deck
  • In-unit Washer and Dryer
  • Large Windows and Walk-in Closets*
  • Located Near CU Boulder
  • Outdoor Cabanas with Gas Grills

Apartment Features

  • Balcony
  • Deck
  • Dishwasher
  • Furnished
  • Quartz Countertops
  • Stainless Steel Appliances

Community Features

  • Business Center
  • Cabana
  • Clubhouse
  • Fitness Center
  • Garages
  • Gated
  • Grill
  • Lounge
  • Pool
  • Walking/Biking Trails

Map of Union 9Seventy

Loading...

Area Scores

Walkability

Moderately walkable60 / 100

Transit

Some public transit50 / 100

Driveability

Moderately drivable70 / 100

Bikeability

Very bikeable80 / 100

Scores provided by

Soundscore ™

Busy62 / 100

Scores provided by
HowLoud

Moving to Baseline Sub, Boulder, CO

Shopping Centers

Shoppers will appreciate Union 9Seventy proximity to Baseline Crossing, Flatiron Shops, and Alcove on Arapahoe. Baseline Crossing is 0.9 miles away, and Flatiron Shops is within a 10 minute walk.

Commuting

With a TransitScore of 50, Union 9Seventy has some public transit, including 5 transit stops within 24.4 miles. Transit options include Eastlake - 124Th Station Track 2 and Olde Town Arvada W-Bound.

Parks and Recreation

Recreational activities near Union 9Seventy are plentiful. Discover 5 parks within 1.8 miles, including Sommers-Bausch Observatory, Fiske Planetarium and Science Center, and University of Colorado Museum.

Airports

Living in Baseline Sub provides easy access to Denver International, located just 49 minutes from Union 9Seventy.

Local Education

Primary and Secondary Schools

undefined rating

Sage Elementary School

Grades K-5

Private

9 rating

Creekside Elementary School At Martin Park

Grades PK-5

Public

5 rating

Manhattan Middle School Of The Arts And Academics

Grades 6-8

Public

undefined rating

Sacred Heart Of Jesus School

Grades K-8

Private

undefined rating

Friends School

Grades PK-8

Private

7 rating

New Vista High School

Grades 9-12

Public

10 rating

Fairview High School

Grades 9-12

Public

undefined rating

September School

Grades 6-12

Private

undefined rating

Halcyon School (Special Education)

Grades 6-12

Public

Data provided by GreatSchools.org © 2026. All rights reserved.

GreatSchools Logo

Colleges and Universities

School

Commute Time (Distance)

CU Boulder

Walk: 3 min (0.2 mi)

Naropa University

Drive: 3 min (1.1 mi)

CU Boulder, East Campus

Drive: 3 min (1.3 mi)

Naropa University

Drive: 7 min (3.5 mi)

About Union 9Seventy

When you get home and kick off your hiking boots enjoy the plethora of amenities Union 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. Union 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. Union 9Seventy has raised the bar for apartment living in Boulder, CO. Don’t wait, sign today!

Union 9Seventy is an apartment community in Boulder, CO

Greystar

Contact

Property Address:
970 28th St,
Boulder, CO 80303
Phone Number: (970) 601-7649
More Information:
View Property Website
Office Hours
  • SundayCLOSED
  • Monday10:00 AM - 6:00 PM
  • Tuesday10:00 AM - 6:00 PM
  • Wednesday10:00 AM - 6:00 PM
  • Thursday10:00 AM - 6:00 PM
  • Friday10:00 AM - 6:00 PM
  • Saturday12:00 PM - 5:00 PM

Renter Reviews

For Union 9Seventy

4

38 Ratings & Reviews

7/12/26

Verified Renter

Yeah, I wouldn't live here again... the hallways are rundown, the units themselves are nice, which is a plus, but everything else besides the front office, study rooms, and community room needs a mega update. Staff is ok, not a big fan of most of them, but shout out to August, they are hands down the best and made my experience so much better. The office hours are very inconvenient. Also, they lost my credit card even though it was signed mail. The move-in process also needs to be redone bc was... very hectic. Overall, I've had people ask about living here, and I've said, Don't every time. The price we pay for the units you would think makes the complex nicer, but it isn't. Also, to mention, you are not paying utilities PER UNIT. It is the ENTIRE complex. That is the most idiotic thing ever. Why should I have to pay 90-100$ a month for someone who could be wasting so much energy? And with a roommate, we are paying $200 a month in units together. That's insane. Glad not living here again.

Review from Apartments.com

Was this helpful?

Property Manager at Union 9Seventy responded to this review

Thank you for taking the time to share your feedback. We're sorry to hear your experience didn't meet your expectations.

We truly appreciate your kind words about August. We're so glad they made a positive impact during your time with us, and we'll... be sure to pass along your recognition. We also appreciate your feedback regarding the condition of the community, the move-in process, office hours, and your overall experience. Comments like yours help us identify opportunities to improve.

To clarify, electricity is individually metered and billed based on each apartment's actual usage. Other utilities are allocated by our third-party billing provider using a formula that considers factors such as apartment size and occupancy. While we understand this billing method may not be everyone's preference, we appreciate the opportunity to provide clarification.

We wish you all the best in your next home and thank you for having been a part of our community.

Best regards,
Grace Cullins | Assistant Community Manager
Union 9Seventy | union9seventyamgr@greystar.com | 720.680.3726

6/13/26

Verified Renter

Everything worked out great! I am very excited to move in! Everyone I talked to were very happy to help and were always available. I would definitely recommend to anyone in Boulder

Review from Apartments.com

Was this helpful?

Property Manager at Union 9Seventy responded to this review

Thank you for your kind words! We are glad that our team was able to assist you and meet your expectations. Please feel free to reach out to the office if you need anything!

4/10/26

Verified Renter

Community staff is great, maintenance is very responsive and does a nice job. Had some problems with homeless getting into the stairwells and building, but as of recently that has not been an issue.

Review from Apartments.com

Was this helpful?

Property Manager at Union 9Seventy responded to this review

Thank you for your kind words about our team and maintenance. We truly appreciate it! We are also glad to hear that the recent concerns have improved. Providing a safe and comfortable community remains a top priority for us, and we will continue... working to maintain that standard for all residents.

4/3/26

Verified Renter

very convenient location between east and main campus and is a 5 min walk from the nearest bus station.

management is good and settles maintenance issues quickly

Review from Apartments.com

Was this helpful?

Property Manager at Union 9Seventy responded to this review

Thank you so much for your kind review! We’re thrilled to hear that you’re enjoying our convenient location, easy access to campus, and nearby transportation. It really is one of the best parts of living here! We also appreciate your recognition of... our management and maintenance teams. Providing quick and reliable service is a top priority for us, so it means a lot to hear that it’s making a positive impact on your experience.

4/3/26

Verified Renter

Terrible! Absolutely terrible. Staff is nice, but desk is basically never open when says online it will be! I even lost a credit card that was SIGNED AND OFFICIALLY RECEIVED and never got it? Would never live here again nor recommend!!!!

Review from Apartments.com

Was this helpful?

Property Manager at Union 9Seventy responded to this review

Thank you for taking the time to share your experience. We’re very sorry to hear about your frustration and truly appreciate your feedback.
Our team does our best to maintain consistent office hours, but there are times when the office may be... temporarily closed while we are assisting other residents or conducting tours of the community. We understand how this can be inconvenient and appreciate your patience.
We’re also very concerned to hear about your missing credit card, as that is not the experience we want for anyone in our community. We would really like the opportunity to look into this further and help resolve the situation.
Please feel free to reach out to me directly at union9seventyamgr@greystar.com, and I’d be happy to assist you.
Thank you again for bringing this to our attention.
Best,
Grace | Assistant Community Manager

Union 9Seventy Gallery

Nearby Properties You Might Like

Within 50 Miles of Union 9Seventy

Find More Rentals in Boulder

Find More Rentals Nearby…

Call