Ascent South Lake Union
1145 Republican St 98109Seattle, WA
Starting from
$2,706–$5,145/mo
About Ascent South Lake Union in Seattle
Ascent South Lake Union is a LEED Gold high-rise in South Lake Union. The building offers panoramic views of Lake Union and the Space Needle. Resident units feature chef-ready kitchens with gas ranges and Blomberg stainless steel appliances, wide plank hardwood floors, washer/dryer, central air-conditioning, and Nest thermostats. Community amenities include a 2,600 sq ft fitness center with towel service, rooftop deck and lounge, rooftop spa, outdoor grills, dog run and pet wash, indoor bike storage, business center, and concierge service.
Ascent South Lake Union is a rental building at 1145 Republican St in South Lake Union, Seattle, WA, built in 2018.
15 apartments are listed right now: 9 one-bedrooms at $2,706–$3,317 a month and 6 two-bedrooms at $4,380–$5,145 a month. Asking rents across the building run $2,706 to $5,145 per month. Pricing was last verified on October 27, 2026.
Residents have access to open-air rooftop deck, alexa controlled window shades & lights, pet wash station, blomberg stainless steel appliances, wine reserve, central air-conditioning, views of space needle and downtown skyline, walk-in closets, and 10 more amenities.
Floor plans at Ascent South Lake Union
| Layout | Available | Size | Rent |
|---|---|---|---|
| 1 Bedroom9 available | 9 | 669– | $2,706– |
| 2 Bedroom6 available | 6 | 1,046– | $4,380– |
Available units at Ascent South Lake Union(15)
Sorted by rent, lowest first
37Unit 621{"name":"B11","provider_id":"4012250"}1 bd · 1 ba · 699 sq ftAvailable now$2,706/mo- 37Unit 208{"name":"B01 Type A","provider_id":"4012257"}1 bd · 1 ba · 765 sq ftAvailable now$2,847/mo
- 37Unit 408{"name":"B01","provider_id":"4012255"}1 bd · 1 ba · 765 sq ftAvailable now$2,947/mo
- 37Unit 1408{"name":"B13","provider_id":"4012246"}1 bd · 1 ba · 669 sq ftAvailable now$3,116/mo
- 37Unit 1708{"name":"B13","provider_id":"4012246"}1 bd · 1 ba · 669 sq ftAvailable now$3,146/mo
- 37Unit 2208{"name":"B13","provider_id":"4012246"}1 bd · 1 ba · 669 sq ftAvailable now$3,146/mo
- 37Unit 1410{"name":"B14","provider_id":"4012251"}1 bd · 1 ba · 725 sq ftAvailable now$3,287/mo
- 37Unit 1510{"name":"B14","provider_id":"4012251"}1 bd · 1 ba · 725 sq ftAvailable now$3,297/mo
- 37Unit 1710{"name":"B14","provider_id":"4012251"}1 bd · 1 ba · 725 sq ftAvailable now$3,317/mo
- 37Unit 706{"name":"C05","provider_id":"4012268"}2 bd · 2 ba · 1,067 sq ftAvailable now$4,380/mo
- 37Unit 1409{"name":"C07 Type A","provider_id":"4012270"}2 bd · 2 ba · 1,070 sq ftAvailable now$4,610/mo
- 37Unit 612{"name":"C02","provider_id":"4012276"}2 bd · 2 ba · 1,177 sq ftAvailable now$4,683/mo
- 37Unit 1411{"name":"C08","provider_id":"4012275"}2 bd · 2 ba · 1,165 sq ftFrom Nov 22$4,691/mo
- 37Unit 2111{"name":"C08","provider_id":"4012275"}2 bd · 2 ba · 1,165 sq ftFrom Nov 15$4,761/mo
- 37Unit 2207{"name":"C06","provider_id":"4012267"}2 bd · 2 ba · 1,046 sq ftFrom Dec 3$5,145/mo
Ascent South Lake Union Amenities
Open-Air Rooftop Deck
Panoramic views of Lake Union and Space Needle with fire pits and gathering spaces
Alexa Controlled Window Shades & Lights
Pet Wash Station
Blomberg stainless steel appliances
Wine Reserve
Central Air-Conditioning
Views of Space Needle and Downtown Skyline
Walk-In Closets
Fitness center
2,600 sq ft fitness center with towel service
Wide Plank Hardwood Flooring
Hot tub
Dog Run
Nest thermostats
Concierge service
Washer/Dryer
Gas Ranges
Rooftop spa
Business center
Frequently asked questions about Ascent South Lake Union
How much does it cost to rent at Ascent South Lake Union?
Listed rents at Ascent South Lake Union currently start at $2,706 per month and go up to $5,145. By layout: 9 one-bedrooms from $2,706, 6 two-bedrooms from $4,380.
What floor plans are available at Ascent South Lake Union?
Ascent South Lake Union currently lists 9 one-bedrooms (669 sq ft–765 sq ft) and 6 two-bedrooms (1,046 sq ft–1,177 sq ft).
Is Ascent South Lake Union pet friendly?
Cats and dogs welcome with $50 monthly pet rent per pet and $400 one-time pet deposit per pet. On-site dog run and pet wash station available. Breed or weight restrictions may apply.
How do I schedule a tour at Ascent South Lake Union?
Request a tour on Staycio at staycio.com/buildings/ascent-south-lake-union: pick a preferred date and time, and you'll get an email confirming the request.
Where is Ascent South Lake Union located?
Ascent South Lake Union is at 1145 Republican St, Seattle, WA, in the South Lake Union neighborhood.