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Union 9Seventy Apartments

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(970) 670-8906
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970 28th St, Boulder, CO 80303

Contact

Union 9Seventy

970 28th St
Boulder, CO 80303
(970) 670-8906
Union 9Seventy in Boulder, CO - Building Photo
  • 1–2 Bedrooms
  • $1,567-$2,511 Total Monthly Price
    11 Month Lease Term

    Total Monthly Price

    Base Rent
    $1,555 - $2,499
    Required Monthly Fees
    $12

    Total Monthly Price
    $1,567 - $2,511
  • 689–999 Square Feet

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 located in the Baseline Sub Neighborhood and 80303 Zip code of Boulder, CO. This community is professionally managed by Greystar Real Estate Partners

Unique Features and Amenities

  • 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

See All Amenities

Property Contact Info

Office Hours

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
SundayClosed

Floorplan Pricing and Availability

Union 9Seventy offers 1 to 2 Bedroom apartments starting from $1,567 and having 689–999 sq ft. Here is the current pricing and availability:

Cost CalculatorEstimate your monthly and one-time fees
  • 1 Bedroom

    Floorplan 1x1

    $2,511

    1 Bed, 1 Bath, 689 sq ft
    Total Monthly Price

    Total Monthly Price

    Base Rent
    $2,499
    Required Monthly Fees
    $12

    Total Monthly Price
    $2,511
    Available Aug 17

    Availability Details

    PriceAvailability DateUnitSq Ft
    $2,511 August 17, 2026Private689
    Prices shown for this property are the Total Monthly Price including Fees.

    Unit Private Amenities and Features

    Features

    • Balcony

    Kitchen

    • Dishwasher
    • Quartz Countertops
    • Stainless Steel Appliances

    Services

    • Furnished

    Unique Features

    • Central Heat/Air
    • Hardwood-Style Flooring with Carpet in Bedrooms
    • In-unit Washer and Dryer
    • Large Windows and Walk-in Closets*

    Unit Private Lease Information

    Unit Price

    • $2,511Total Monthly Price
      Base Rent: $2,499
      Required Monthly Fees: $12
    • View Details and Rent Estimate

    Model Lease Information

    Price

    • $2,511Total Monthly Price
  • 2 Bedrooms

    2x2-A

    $1,567

    2 Beds, 2 Baths, 937 sq ft
    Total Monthly Price

    Total Monthly Price

    Base Rent
    $1,555
    Required Monthly Fees
    $12

    Total Monthly Price
    $1,567
    Available Aug 17

    Availability Details

    PriceAvailability DateUnitSq Ft
    $1,567/person August 17, 2026Private937
    Prices shown for this property are the Total Monthly Price including Fees.

    Unit Private Amenities and Features

    Unique Amenities

    • Furnished

    Features

    • Balcony

    Kitchen

    • Dishwasher
    • Quartz Countertops
    • Stainless Steel Appliances

    Unique Features

    • Central Heat/Air
    • Hardwood-Style Flooring with Carpet in Bedrooms
    • In-unit Washer and Dryer
    • Large Windows and Walk-in Closets*

    Unit Private Lease Information

    Unit Price

    • $1,567Total Monthly Price
      Base Rent: $1,555
      Required Monthly Fees: $12
    • View Details and Rent Estimate

    Model Lease Information

    Price

    • $1,567Total Monthly Price

    2x2B

    $1,617

    2 Beds, 2 Baths, 999 sq ft
    Total Monthly Price

    Total Monthly Price

    Base Rent
    $1,605
    Required Monthly Fees
    $12

    Total Monthly Price
    $1,617
    Available Aug 17

    Availability Details

    PriceAvailability DateUnitSq Ft
    $1,617/person August 17, 2026Private999
    Prices shown for this property are the Total Monthly Price including Fees.

    Unit Private Amenities and Features

    Unique Amenities

    • Furnished

    Features

    • Balcony

    Kitchen

    • Dishwasher
    • Quartz Countertops
    • Stainless Steel Appliances

    Unique Features

    • Central Heat/Air
    • Hardwood-Style Flooring with Carpet in Bedrooms
    • In-unit Washer and Dryer
    • Large Windows and Walk-in Closets*

    Unit Private Lease Information

    Unit Price

    • $1,617Total Monthly Price
      Base Rent: $1,605
      Required Monthly Fees: $12
    • View Details and Rent Estimate

    Model Lease Information

    Price

    • $1,617Total Monthly Price
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.

Schedule a Tour

Request Tour
Call us at: (970) 670-8906 to request a tour.

3D Tours

Property Information

  • Renovated In Oct 2021
  • 138 Units
  • 4 Stories
  • Built in 2015

Lease Terms

  • 12 mo

Fees and Policies

The fees listed below are community-provided and may exclude utilities or add-ons. All payments are made directly to the property and are non-refundable unless otherwise specified. Use the Cost Calculator to determine costs based on your needs.

Required Fees

One-Time Basics

Due at Application
Application FeeiMax of 1. Amount to process application, initiate screening, and take a rental home off the market.$35

Utilities

Utility - ElectriciMax of 1. Usage-Based (Utilities). Amount for provision and consumption of electricity.Varies/mo
Disclaimer: Utility apportionment is direct metered.
Utility - GasiMax of 1. Usage-Based (Utilities). Amount for provision and consumption of natural gas.Varies/mo
Disclaimer: Utility apportionment is allocation: sq footage of unit.
Trash Services - HaulingiMax of 1. Amount for shared trash/waste services.$6/mo
Utility - Billing Administrative FeeiMax of 1. Amount to manage utility services billing.$6.44/mo
Utility - Water/SeweriMax of 1. Usage-Based (Utilities). Amount for provision and/or consumption of water and sewer services.Varies/mo
Disclaimer: Utility apportionment is allocation: number of occupants in unit.

Other Fees and Policies

Situational Fees

Returned Payment Fee (NSF)iMax of 1. Amount for returned payment.$20/per occurrence
Intra-Community Transfer FeeiMax of 1. Amount due when transferring to another rental unit within community.$300/per occurrence
Comments:

Max of 1.

Personal Add-Ons

Renters Liability/Content - Property ProgramiMax of 1. Amount to participate in the property Renters Liability Program.$13/mo
Renters Liability OnlyiMax of 1. Amount for required Renters Liability Policy.$8/per occurrence
Comments:

Max of 1.

Pet Fees

Pet Deposit (Refundable)iMax of 1. Amount for pet living in rental home. May be assessed per pet or per rental home, based on lease requirements. Refunds processed per lease terms.$250
Pet RentiMax of 1. Monthly amount for authorized pet.$35/mo
Comments:

Max of 1.

Dogs
  • 2 Pet Limit
  • 50 Lb Weight Limit
Cats
  • 2 Pet Limit
  • 50 Lb Weight Limit

Parking Fees

Garage
Parking FeeiMax of 1. Amount for garage parking space/services. May be subject to availability.$90/mo
Comments:

Max of 1.

Additional Parking Options

Garage Parking

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.

Features and Amenities

Unique Amenities

  • 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

Community Features

  • Business Center
  • Clubhouse
  • Lounge

Outdoor Features

  • Grill
  • Cabana
  • Gated
  • Deck

Recreation and Fitness

  • Fitness Center
  • Walking/Biking Trails
  • Pool

Interior Features

  • Balcony

Kitchen Amenities

  • Stainless Steel Appliances
Google Map

Map

970 28th St, Boulder, CO 80303

Getting Around

  • 60 / 100 Moderately walkable

    Most day-to-day needs are within walking distance

  • 50 / 100 Some public transit

    Transit is available for most trips

  • 80 / 100 Very Bikeable

    Highly suitable for bicycle commuting and/or recreation

  • 70 / 100 Moderately car friendly

    Good access to freeways and/or major arteries, with a low chance of parking problems

Scores provided by Local Logic details

Getting to Know the Area

  • 80 / 100 Restaurants

    Wide variety of restaurants within a few minutes

  • 80 / 100 Cafes

    Wide variety of cafés within a few minutes

  • 70 / 100 Nightlife

    Several bars within a few minutes

  • 80 / 100 Shopping

    Wide variety of shops within a few minutes

  • 30 / 100 Noise Level

    Multiple sources of noise nearby

Scores provided by Local Logic

Frequently Asked Questions about Union 9Seventy

Where is Union 9Seventy located?

Union 9Seventy is located at 970 28th St near the Baseline Sub area of Boulder, CO

What is the current rent range at Union 9Seventy?

1 Bedroom to 2 Bedroom Apartments at Union 9Seventy currently range from $1,567 to $2,511

When is the leasing office open?

  • The office Hours for Union 9Seventy are
  • Monday 10:00 am–6:00 pm
  • Tuesday 10:00 am–6:00 pm
  • Wednesday 10:00 am–6:00 pm
  • Thursday 10:00 am–6:00 pm
  • Friday 10:00 am–6:00 pm
  • Saturday 12:00 pm–5:00 pm
  • Sunday Closed

Are pets allowed?

Call us today to find out our pet policy and if we allow pets

About Portable Tenant Screening Reports:

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.

Renters Reviews and Ratings

4.0
38 Renters Reviews

Verified RenterSubmitted by a verified resident of the apartment community. Participating residents may receive reward points in exchange for posting a review during their lease term, regardless of the nature of the review.

July 12, 2026 - Review from Apartments.com
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.
Read More

Property Manager Responded

July 22, 2026
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

Verified RenterSubmitted by a verified resident of the apartment community. Participating residents may receive reward points in exchange for posting a review during their lease term, regardless of the nature of the review.

June 13, 2026 - Review from Apartments.com
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

Property Manager Responded

June 22, 2026
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!

Verified RenterSubmitted by a verified resident of the apartment community. Participating residents may receive reward points in exchange for posting a review during their lease term, regardless of the nature of the review.

April 10, 2026 - Review from Apartments.com
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.

Property Manager Responded

April 22, 2026
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.

Verified RenterSubmitted by a verified resident of the apartment community. Participating residents may receive reward points in exchange for posting a review during their lease term, regardless of the nature of the review.

April 2, 2026 - Review from Apartments.com
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

Property Manager Responded

April 13, 2026
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.

Verified RenterSubmitted by a verified resident of the apartment community. Participating residents may receive reward points in exchange for posting a review during their lease term, regardless of the nature of the review.

April 2, 2026 - Review from Apartments.com
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!!!!

Property Manager Responded

April 13, 2026
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

Verified RenterSubmitted by a verified resident of the apartment community. Participating residents may receive reward points in exchange for posting a review during their lease term, regardless of the nature of the review.

February 20, 2026 - Review from Apartments.com
I love my apartment! Any maintenance issues are dealt with fast and staff are very supportive! Definitely worth living here. I recommend it to all of my friends!

Property Manager Responded

February 23, 2026
Thank you for taking the time to leave us a review! We appreciate your feedback and are happy to hear that you have had a positive experience!

Verified RenterSubmitted by a verified resident of the apartment community. Participating residents may receive reward points in exchange for posting a review during their lease term, regardless of the nature of the review.

January 22, 2026 - Review from Apartments.com
Really easy to apply. Lease was approved quickly. Front desk person was kind and helpful during the lease process. Website was easy to navigate.

Property Manager Responded

February 20, 2026
Thank you for taking the time to leave us a review! We appreciate your feedback and are happy to hear that you have had a positive experience!

Verified RenterSubmitted by a verified resident of the apartment community. Participating residents may receive reward points in exchange for posting a review during their lease term, regardless of the nature of the review.

January 20, 2026 - Review from Apartments.com
My experience moving into my apartment was very smooth. The staff in the office have been very helpful, patient and friendly and my apartment is warm, bright and comfortable

Property Manager Responded

January 27, 2026
Thank you for taking the time to leave us a review! We appreciate your feedback and are happy to hear that you have had a positive experience!

Verified RenterSubmitted by a verified resident of the apartment community. Participating residents may receive reward points in exchange for posting a review during their lease term, regardless of the nature of the review.

January 8, 2026 - Review from Apartments.com
Great experience, I love my apartment. All appliances work well and hold up. Loses one star because of those occasional power outtages and lurking homeless people.

Property Manager Responded

January 21, 2026
Thank you for taking the time to leave your feedback! We're happy to hear you're satisfied with life at Union 9Seventy! Unfortunately, the power outages were out of our control but please let us know if you would like maintenance to stop by and ensure everything is working correctly. Thank you!

Verified RenterSubmitted by a verified resident of the apartment community. Participating residents may receive reward points in exchange for posting a review during their lease term, regardless of the nature of the review.

September 16, 2025 - Review from Apartments.com
Love my unit and love the amenities! Neighbors and staff are very friendly and unit is very comfortable. I would definitely recommend to a friend!

Property Manager Responded

September 25, 2025
We're thrilled you're enjoying your apartment! Thanks for leaving your feedback.

Verified RenterSubmitted by a verified resident of the apartment community. Participating residents may receive reward points in exchange for posting a review during their lease term, regardless of the nature of the review.

September 16, 2025 - Review from Apartments.com
So far so good! No breakdowns, no complaints, amenities are great. Just wish the blinds kept more light out. Light seeps in through the cracks of the blinds.

Property Manager Responded

September 25, 2025
Hello, thank you for leaving your feedback! We're so happy that you're pleased with your new apartment home! We kindly ask that you please submit a work order for your blinds so we can get get those adjusted for you.

Verified RenterSubmitted by a verified resident of the apartment community. Participating residents may receive reward points in exchange for posting a review during their lease term, regardless of the nature of the review.

August 31, 2025 - Review from Apartments.com
Union 9 Seventy has been incredible so far! Communication is top-notch — every email and phone call I’ve made has been answered promptly, which is such a breath of fresh air compared to other places. Grace has been absolutely amazing to work with, and the entire front staff is friendly, professional, and helpful. Although expensive, the property itself is beautiful and well-maintained despite somewhat dirty hallways, and I’m genuinely excited to live here this school year. If you want a place ...
with great communication, a welcoming team, and a stunning property, Union 9 Seventy is the way to go!
Read More

Property Manager Responded

September 2, 2025
Thank you so much for your detailed review! We are thrilled that Grace went above and beyond for you! We sincerely appreciate you taking the time to leave your feedback about our community.

Nearby Schools

Manhattan Middle School Of The Arts And Academics

Boulder Valley Re 2 School District
290 Manhattan Drive
Public School - Grades 6-8 (400 Students)
In Attendance Zone5 minute drive / 1.7 miles away
5/10

Fairview High School

Boulder Valley Re 2 School District
1515 Greenbriar Boulevard
Public School - Grades 9-12 (1880 Students)
In Attendance Zone5 minute drive / 2.4 miles away
10/10

Creekside Elementary School at Martin Park

Boulder Valley Re 2 School District
3740 Martin Drive
Public School - Grades PK-5 (378 Students)
In Attendance Zone3 minute drive / 1.2 miles away
9/10
School data provided by GreatSchools.
details
The GreatSchools Rating helps parents compare schools within a state based on a variety of school quality indicators and provides a helpful picture of how effectively each school serves all of its students. Ratings are on scale of 1 (below average) and to 10 (above average) and can include test scores, college readiness, academic progress, advanced courses, equity, discipline and attendance data. We also advise parents to visit schools, consider other information on school performance and programs, and consider needs as part of the school selection process.

About GreatSchools Data on ApartmentHomeLiving.com.

Points of Interest

Time and distance from Union 9Seventy.

Big Box and Retail

Walgreens

1111 Broadway St
2 minute drive / 0.83 miles away

Costco

600 Marshall Rd
12 minute drive / 5.72 miles away

Colleges and Universities

University of Colorado at Boulder

2055 Regent Drive
1 minute drive / 0.13 miles away

Naropa University - Arapahoe Campus

2130 Arapahoe Ave
1 minute drive / 0.55 miles away

University of Colorado at Boulder - East Campus

Regent Drive at Broadway
2 minute drive / 0.69 miles away

Groceries

Trader Joe's

1906 28th St
2 minute drive / 0.72 miles away

King Soopers

2900 Arapahoe Rd
18 minute drive / 8.47 miles away

Hospitals

Boulder Community Health

4747 Arapahoe Avenue
3 minute drive / 1.3 miles away

Centura Health - Avista Adventist Hospital

100 Health Park Dr
15 minute drive / 7.15 miles away

Centennial Peaks Hospital

2255 S 88th St
15 minute drive / 7.2 miles away

Shopping Centers

Alcove on Arapahoe

2400-2580 Arapahoe Ave
1 minute drive / 0.24 miles away

Flatiron Shops

1540-1590 28th St
1 minute drive / 0.3 miles away

Buffalo Village Center

1631-1639 28th St
1 minute drive / 0.39 miles away

Union 9Seventy has 5 shopping centers within 0.4 miles.

Nearby Neighborhoods

University of Colorado

Studio to 4 Bedroom Apartments from $1,100
View Rentals

Baseline

Studio to 4 Bedroom Apartments from $1,150
View Rentals

Baseline Sub

Studio to 4 Bedroom Apartments from $1,150
View Rentals

Rental Price Ranges in the Area

BedroomAverage RentCheapest RentHighest Rent
Boulder Studio Apartments $2,021$787$3,086
Boulder 1 Bedroom Apartments $2,160$843$4,336
Boulder 2 Bedroom Apartments $2,436$870$5,566
Boulder 3 Bedroom Apartments $3,001$1,230$5,753
Boulder 4 Bedroom Apartments $2,422$1,570$6,097
Boulder 5 Bedroom Apartments $2,425$1,100$3,750
2 Bedroom Homes$2,793$1,650$6,495
3 Bedroom Homes$3,640$1,250$6,495
4 Bedroom Homes$4,707$1,095$10,000+
5 Bedroom Homes$6,689$3,450$10,000+

Browse Top Apartments in Boulder

Viewing: Union 9Seventy | Desktop Version | Listing Updated: 08/04/2026 | AHLDIA
Greystar Disclosures & Licenses