Alley South Lake Union Apartments, 1259 Thomas St., Seattle, WA

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Rent Specials

Alley South Lake Union

(8)

Verified Listing

From $1,660

Studio-2 Beds
1-2.5 Baths

1259 Thomas St., Seattle, WA 98109

Floorplans

Updated Today

$ Some units at this property may be income restricted

0x1 A

Studio
1 Bath
367 Sqft

Available now

$1,754 - $2,085 Available now

Photos
Amenities

0x1 B

Studio
1 Bath
410 Sqft

Available now

$1,660 - $2,049 Available now

Photos
Amenities

0x1 C

Studio
1 Bath
494 Sqft

Available now

$1,836 - $2,179 Available now

Photos
Amenities

1x1 B

1 Bed
1 Bath
670 Sqft

Available now

$2,284 - $2,788 Available now

Photos
Amenities

1x1.5 Loft A

1 Bed
1.5 Baths
695 Sqft

Available now

$2,257 - $2,758 Available now

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Amenities

1x1.5 Loft B

1 Bed
1.5 Baths
788 Sqft

Available now

$2,380 - $2,903 Available now

Photos
Amenities

2x2 B

2 Beds
2 Baths
958 Sqft

Available now

$3,484 - $4,172 Available now

Photos
Amenities

0x1 Plus A

Studio
1 Bath
556 Sqft

Available 01/27/2026

$1,879 - $2,295 Available 01/27/2026

Photos
Amenities

Open 1

Studio
1 Bath
633 Sqft

Available 12/21

$1,786 - $2,151 Available 12/21

Photos
Amenities

1x1 C

1 Bed
1 Bath
699 Sqft

Available 12/21

$2,283 - $2,760 Available 12/21

Photos
Amenities

0x1 Plus B

Studio
1 Bath
590 Sqft

Ask for Pricing

Photos
Amenities

0x1 Plus C

Studio
1 Bath
786 Sqft

Ask for Pricing

Photos
Amenities

1x1 A

1 Bed
1 Bath
588 Sqft

Ask for Pricing

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Amenities

1x1 D

1 Bed
1 Bath
796 Sqft

Ask for Pricing

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Amenities

1x1 Den A

1 Bed
1 Bath
714 Sqft

Ask for Pricing

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Amenities

1x1 Den B

1 Bed
1 Bath
790 Sqft

Ask for Pricing

Photos
Amenities

1x1.5 Loft C

1 Bed
1.5 Baths
896 Sqft

Ask for Pricing

Photos
Amenities

1x1.5 Loft D

1 Bed
1.5 Baths
1,015 Sqft

Ask for Pricing

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Amenities

1x1.5 TH

1 Bed
1.5 Baths
800 Sqft

Ask for Pricing

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Amenities

2x1.5 TH

2 Beds
1.5 Baths
1,070 Sqft

Ask for Pricing

Photos
Amenities

2x1.5 Loft

2 Beds
1.5 Baths
1,660 Sqft

Ask for Pricing

Photos
Amenities

2x2 A

2 Beds
2 Baths
915 Sqft

Ask for Pricing

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Amenities

2x2 C

2 Beds
2 Baths
973 Sqft

Ask for Pricing

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Amenities

2x2 D

2 Beds
2 Baths
1,272 Sqft

Ask for Pricing

Photos
Amenities

2x2.5 Den TH

2 Beds
2.5 Baths
1,246 Sqft

Ask for Pricing

Photos
Amenities

Estimated Fees

Application Fees: $19
There may be additional unit-specific fees. Please select a unit and move-in date here.

One-Time Pet Fees $250
Security Pet Deposit $250
Monthly Pet Rent $30
Pet Limit 2 allowed. 2 Pets Max.

The fees are estimates and actual amounts may vary. Pricing and availability are subject to change. For details, contact the property.

Rent Specials

Leasing Special: Get Five Weeks Free at Move-In! *On select apartment homes. With an approved application. Pricing and availability are subject to change at any time. Restrictions and limitations apply. For a limited time only.
Offers vary by floorplan. Check details or contact property.

Apartment Amenities

Sleek quartz countertops and subway tile backsplash
Air conditioning
Environmentally sustainable design (LEED certified)
Concrete floors in lofts and townhomes
Historic brick architecture in some residences
Stainless steel kitchen appliance package
Washer/dryer in every home
Stylish wood plank style flooring
Exterior deck or private patio
Expansive windows

Community Amenities

Rooftop decks with gardens, grilling stations and fire pit
Resident lounge with billiards, fireplace and kitchen
24/7 state of the art fitness center
Controlled building entry access
EV charging stations
Valet dry cleaning and package notifications via concierge
Direct access to Cascade Park and Seattle walking trails
Panoramic rooftop views of Lake Union and Downtown Seattle
Media room with 80 inch HDTV and cozy seating
Private conference room with free Wi-Fi
Underground, controlled access garage parking available
Complimentary bike storage
Ground floor dining, shopping and services

Apartments in the Community: 172
Buildings in the Community: 1
Number of Stories: 6
Year Built: 2006
Green Building

South Lake Union is a neighborhood with a reputation for live-work-play and Union Bay Apartments is in the middle of it all. Centered in the forefront of Downtown Seattle's trendiest area, many cannot wait to call Union Bay Apartments home. Designed for the savvy urban dweller, our studio, one and two-bedroom homes come in a variety of spacious floorplans that feature in-unit washer and dryer, stainless steel appliances and more. You can find many ways to unwind and relax in our pet-friendly community, including taking in the views of the Space Needle and Lake Union from one of the largest rooftop terraces in all of South Lake Union! We can't wait to show you your new home, so schedule your tour today!

Ratings and Reviews

3.5 Very Good

8 Reviews

Why Renters Love It Here

Residents appreciate the great amenities and generally find the staff to be good. Many have expressed gratitude for smooth move-in experiences and the overall quality of their new apartments.

AI-generated summary based on renter reviews.

Verified Resident

review

The rent is affordable and the surrounding neighborhood is nice.

Anonymous Feb 17, 2025

Verified Resident

Great;exceptional

Amazing. Greqt review app and app and help. Garteful for my new apartment. Smooth seas ahead

Matt G. Sep 1, 2023

Verified Resident

Acceptable

Nice place. Location is a little sketchy some parts of the year but have never had a problem.

Anonymous Aug 1, 2023

Verified Resident

Good place to call home

Lived here for almost 6 months now. It has great amenities, staff is good. The only downside is trash service, we have to pay $25 and they take time to take our the trash from your bin. Else everything is good!

Anonymous Jul 13, 2023

Verified Resident

Alley 24 Review

Apartment needs to consider installing AC in units

Anonymous Jun 29, 2023

View more reviews

Average Utility Costs in Washington

Electricity

$121

Gas

$99

Water

$81

Sewer

$82

Cable

$20

Internet

$35

Prices in the Area

	This Community	Cascade	Seattle, WA
Studio	$1,660 - $2,295	$1,099 - $6,775	$328 - $7,619
1 Bed1 Bedroom	$2,257 - $2,903	$1,234 - $7,585	$400 - $12,339
2 Beds2 Bedrooms	$3,484 - $4,172	$1,295 - $8,832	$25 - $18,331