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Onni South Lake Union

112 Boren Ave N, Seattle, WA 98109

Monthly Rent

$2,293 - $31,995

Bedrooms

1 - 3

Bathrooms

1 - 4

About this Rental

Experience unparalleled living at Onni South Lake Union. OSLU offers luxury one-, two-, and three-bedroom rental apartments with resort-inspired amenities and services, stunning views, and open floorplans. With furnished and unfurnished options, enjoy a graceful balance between contemporary interiors and elegant outdoor spaces. This is Seattle living at its best.

Onni South Lake Union is located in Seattle, Washington in the 98109 zip code. This apartment community was built in 2022 and has 41 stories with 1,097 units.

Pricing and Floor Plans

Boren C3

$3,217 - $5,296
1 Bed, 1 Bath
685 Sq. Ft.
7 Rentals Available
Unit
Price
Sq. Ft.
Available

Fairview B4

$2,992 - $4,764
1 Bed, 1 Bath
616 Sq. Ft.
5 Rentals Available
Unit
Price
Sq. Ft.
Available

Boren C2

$3,152 - $5,181
1 Bed, 1 Bath
658 Sq. Ft.
4 Rentals Available
Unit
Price
Sq. Ft.
Available

Fairview B3

$3,172 - $4,880
1 Bed, 1 Bath
627 - 628 Sq. Ft.
4 Rentals Available
Unit
Price
Sq. Ft.
Available

Fairview B5

$2,910 - $4,534
1 Bed, 1 Bath
623 - 630 Sq. Ft.
3 Rentals Available
Unit
Price
Sq. Ft.
Available

Boren B5

$2,937 - $4,511
1 Bed, 1 Bath
532 Sq. Ft.
3 Rentals Available
Unit
Price
Sq. Ft.
Available

Boren B1

$2,878 - $4,427
1 Bed, 1 Bath
504 Sq. Ft.
Jun. 29
Unit
Price
Sq. Ft.
Available

Boren B2

$3,378 - $4,996
1 Bed, 1 Bath
588 Sq. Ft.
Jul. 7
Unit
Price
Sq. Ft.
Available

Boren B4

$3,162 - $4,774
1 Bed, 1 Bath
670 Sq. Ft.
Jul. 22
Unit
Price
Sq. Ft.
Available

Fairview B2

$3,151 - $4,551
1 Bed, 1 Bath
611 Sq. Ft.
1 Rental Available
Unit
Price
Sq. Ft.
Available

Boren B3

$3,317 - $4,784
1 Bed, 1 Bath
654 Sq. Ft.
1 Rental Available
Unit
Price
Sq. Ft.
Available

Boren C5

$3,964 - $5,692
1 Bed, 1 Bath
847 Sq. Ft.
Jun. 27
Unit
Price
Sq. Ft.
Available

Fairview B1

$2,898 - $4,159
1 Bed, 1 Bath
538 Sq. Ft.
Jul. 7
Unit
Price
Sq. Ft.
Available

Fairview B6

$3,253 - $4,656
1 Bed, 1 Bath
571 Sq. Ft.
Jul. 14
Unit
Price
Sq. Ft.
Available

Boren C1

$3,408 - $4,051
1 Bed, 1 Bath
686 Sq. Ft.
Aug. 8
Unit
Price
Sq. Ft.
Available

Boren E2

$5,030 - $7,780
2 Beds, 2 Baths
1,009 Sq. Ft.
Jul. 6
Unit
Price
Sq. Ft.
Available

Boren D1

$5,208 - $8,133
2 Beds, 2 Baths
907 Sq. Ft.
Jul. 8
Unit
Price
Sq. Ft.
Available

Fairview D9*

$4,415 - $6,963
2 Beds, 2 Baths
896 Sq. Ft.
1 Rental Available
Unit
Price
Sq. Ft.
Available

Fairview D3

$4,825 - $7,442
2 Beds, 2 Baths
870 Sq. Ft.
1 Rental Available
Unit
Price
Sq. Ft.
Available

Boren E1

$5,609 - $8,632
2 Beds, 2 Baths
1,166 Sq. Ft.
1 Rental Available
Unit
Price
Sq. Ft.
Available

Fairview D1

$5,009 - $7,721
2 Beds, 2 Baths
894 Sq. Ft.
Jun. 20
Unit
Price
Sq. Ft.
Available

Boren Sky4

$6,366 - $9,662
2 Beds, 2 Baths
1,344 Sq. Ft.
Jun. 23
Unit
Price
Sq. Ft.
Available

Boren D4

$5,264 - $8,110
2 Beds, 2 Baths
925 Sq. Ft.
Jun. 27
Unit
Price
Sq. Ft.
Available

Boren Sky1

$6,481 - $9,834
2 Beds, 2 Baths
1,249 Sq. Ft.
Jun. 30
Unit
Price
Sq. Ft.
Available

Fairview E1

$5,549 - $8,541
2 Beds, 2 Baths
1,142 Sq. Ft.
Jul. 23
Unit
Price
Sq. Ft.
Available

Fairview G1

$4,765 - $7,485
3 Beds, 2 Baths
1,077 Sq. Ft.
1 Rental Available
Unit
Price
Sq. Ft.
Available

Fairview Sky7

$7,893 - $11,907
3 Beds, 3 Baths
1,506 Sq. Ft.
Jul. 31
Unit
Price
Sq. Ft.
Available

Fairview Sky10

$8,140 - $11,462
3 Beds, 3 Baths
1,612 Sq. Ft.
Aug. 7
Unit
Price
Sq. Ft.
Available
* 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.

Details

Lease Term Options

  • 9 - 16 Month Leases

Property Information

  • Built in 2022
  • 1097 units/41 stories

Fees and Policies

The fees below are based on community-supplied data independent market research.

One-Time Basics

Due at Application

  • Application Fee Per Applicant
    $50
  • Reservation/Holding Fee
    $500

Due at Move-In

  • Security Deposit - Refundable
    $750

Property Fee Disclaimer: Based on community-supplied data and independent market research. Subject to change without notice. May exclude fees for mandatory or optional services and usage-based utilities.

Matterport 3D Tours

Property Highlights

  • Designer Furnished Suites Available
  • Peloton Bikes And Mirror
  • Private Dining Room

Apartment Features

  • Air Conditioning
  • Balcony
  • Dining Room
  • Dishwasher
  • Disposal
  • Floor to Ceiling Windows
  • Freezer
  • Furnished
  • Heating
  • High Speed Internet Access

Community Features

  • 24 Hour Access
  • Basketball Court
  • Bicycle Storage
  • Business Center
  • Cabana
  • Car Charging Station
  • Clubhouse
  • Concierge
  • Conference Rooms
  • Controlled Access

Map of Onni South Lake Union

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Transit

Commuter Rail
King Street (Seattle) Station
6 min Drive
Central Puget Sound Regional Transit Authority Rail
Airport
Seattle-Tacoma International
24 min Drive
Seattle-Tacoma International
Airport
Seattle Paine Field International
34 min Drive

Area Scores

Walkability

Exceptionally walkable100 / 100

Transit

Exceptional public transit100 / 100

Driveability

Fairly drivable40 / 100

Bikeability

Moderately bikeable60 / 100

Scores provided by
Capilano - Onni South Lake Union

Contact

Property Address:
112 Boren Ave N,
Seattle, WA 98109
Phone Number: (425) 230-5251
More Information:
View Property Website
Office Hours
  • Sunday9:00 AM - 6:00 PM
  • Monday9:00 AM - 6:00 PM
  • Tuesday9:00 AM - 6:00 PM
  • Wednesday9:00 AM - 6:00 PM
  • Thursday9:00 AM - 6:00 PM
  • Friday9:00 AM - 6:00 PM
  • Saturday9:00 AM - 6:00 PM

Renter Reviews

14 Ratings & Reviews

How Is This Rating Determined?

5/26/26

Great Service

Amazing service especially from Joel at the Fairview Tower. Very friendly and courteous

Review from Apartments.com

Property Manager at Onni South Lake Union responded to this review

Thank you for the great review! We're so glad Joel was able to make such a great impression. We'll be sure to pass along your kind words to him. Have a wonderful day!

2/13/26

Amazing friendly staff

My wife and I moved to these apartments last year and so far we love it! The staff here is so friendly and we have had a great experience with living in the area and using the amazing amenities. Nicolas Kuyaku who works in our tower has always been a great help for us as well! I tend to forget my key and he is always there to help us get to our unit safely! Thank you for your amazing service and keeping the building well maintained.

Review from Apartments.com

Property Manager at Onni South Lake Union responded to this review

Thank you for your feedback. Our team strives to go above and beyond, and we are thrilled to hear you are experiencing that with us at Onni South Lake Union. Please do not hesitate to reach out should you have any questions or need any assistance.... Have a great day!

11/19/25

They make fake positive reviews. Do not live here.

I am a current resident, and I am extremely disappointed with the overall experience at this complex. Given the cost of living here, the level of service and treatment from management has been unacceptable.

I was particularly frustrated to learn about the “balcony audits,” which restrict how residents may use their own balconies. While I understand the desire to maintain aesthetics, residents pay for this space and should have reasonable autonomy over how it is used, provided it does not pose...
safety issues.

Additionally, if Onni is concerned about the appearance of balconies, I would hope they also acknowledge the impact of the construction site they are operating directly across the street. The ongoing noise, bright lights from cranes, and general disruption have significantly affected our quality of life. Several residents have even expressed interest in petitioning for rent reductions due to these conditions.

Another major concern is the use of shared amenities. Prior to signing the lease, we were told that we could bring guests to common areas such as lounges and pools. However, multiple times staff have asked my guests to leave even when the spaces were completely unused. We are always respectful: we clean up after ourselves, keep noise levels low, and ensure we leave the area in good condition. It is discouraging to be told these spaces are available to residents, only to be restricted from using them under reasonable circumstances.

The front desk service has also been inconsistent. Although the complex advertises 24/7 front desk availability, staff are frequently away from the desk for extended periods. I fully support staff taking breaks, but there have been multiple occasions when I waited or returned after an hour and still could not receive assistance. This has forced me to seek help from other buildings or the hotel lobby.

To be clear, there are several staff members who are wonderful, professional, helpful, and kind. Unfortunately, the larger pattern of issues raised by many residents suggests significant management and operational challenges.

At this point, I am actively looking to move out and deeply regret choosing this building. Please do yourself a favor and do not ever choose to live here. I have already told everyone I know to avoid this place at all costs.

Review from Apartments.com

5 People Found This Helpful

10/30/24

Warning: STAY AWAY

Warning: STAY AWAY
Warning: Avoid Onni South Lake Union Apartments
If you're considering living at Onni South Lake Union, I strongly advise you to think twice. My experience with this building was nothing short of a nightmare, and it cost me nearly $15,000 to break the lease after signing what seemed like a promising agreement. Here’s why:
False Promises, Rudeness, and Unprofessional Behavior
When we first toured the property, the staff and leasing team were friendly and professional, eager to...
help us with anything we needed. However, after our first complaint about the conditions and our request to break the lease, their attitude changed drastically. They became rude, dismissive, and careless. What started as a seemingly professional relationship turned into complete disregard for our concerns. The moment we expressed dissatisfaction, the kindness vanished. They showed no empathy and refused to help, making the process of breaking the lease even more difficult.
Health Issues and Abandonment
Unfortunately, after breaking the lease, we had to leave Seattle for health reasons and never spent a single night in the apartment. We asked Onni to hold on to a couple of our furniture items while we sorted things out, but they discarded them without warning, claiming they only held onto them for 30 days. No one reached out to inform us about this policy. It felt like they wanted to make things as difficult as possible for us.
Unsafe and Disturbing Environment
What they don't tell you is that Onni South Lake Union isn't just a residential complex—it doubles as a hotel. This brings in a constant flow of transient guests who are not invested in the community, and it drastically changes the building’s atmosphere. The lobby and common areas are often crowded with groups of people who do not live there, which includes young women who appear to be using the space for gatherings that made us feel unsafe and uncomfortable. It felt more like a party venue than a place to call home. The combination of the hotel and constant strangers made the building feel less secure and far from the peaceful, upscale environment we expected.
Facilities and Maintenance Neglect
On top of that, the building’s facilities were a disaster. From the broken sauna to filthy pool areas and drainage problems, nothing was properly maintained. The building was not up to the standards that we were promised. The common areas reeked of marijuana, and there were safety hazards everywhere.

Review from Apartments.com

1 Person Found This Helpful

Property Manager at Onni South Lake Union responded to this review

Hello there,
We’re very sorry to hear about your experience and appreciate your feedback. We’re happy to review any discrepancies with you directly. If you have any further questions or would like to discuss this, feel free to reach out to us at...
OSLUresidentservices@onni.com or call us at (206) 428-3988. Thank you again for your feedback, and we’re committed to improving our service.

8/30/23

Moving Made Easy

I have been a resident at Onni for over a year now, and have loved my time here so much! I am moving into a new unit in the building and appreciated the streamlined abilities of the staff, especially Sarah Ahn, in advocating to have the perfect apartment unit held for my partner and I until we could move in. Sarah has been there to support us, offer resources, and answer questions along the way. I highly recommend Onni not only for the amazing resident services team, but also for the incredible... amenities and overall experience Onni provides while living in SLU!

Review from Apartments.com

1 Person Found This Helpful

Property Manager at Onni South Lake Union responded to this review

Hi there!
Thank you so much for this amazing review! We truly appreciate the time you've taken to highlight features of our community, building, and team here at OSLU. We want to continue providing you with an exceptional experience, so please do not...
hesitate to reach out should you ever have any questions or concerns. Thanks again for your recommendation and have a great day!

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Moving to Seattle, WA

Shopping Centers

Shoppers will appreciate Onni South Lake Union proximity to Melrose Market, Pacific Place Shopping Center, and Westlake Center. Melrose Market is 0.6 miles away, and Pacific Place Shopping Center is within an 11 minute walk.

Commuting

With top-notch public transportation and a TransitScore of 100, Seattle is exceptional public transit. Within 33.3 miles of Onni South Lake Union, you’ll find Terry & Thomas, Westlake & Denny, and Westlake & Thomas.

Parks and Recreation

Recreational activities near Onni South Lake Union are plentiful. Discover 5 parks within 1 mile, including Cascade Playground, Denny Park, and Northwest Seaport Maritime Heritage Center.

Airports

Living in Seattle provides easy access to Seattle-Tacoma International, located just 24 minutes from Onni South Lake Union. Another nearby airport is Seattle Paine Field International, located 22.8 miles away.

Onni South Lake Union Gallery

(425) 230-5251