O2 Apartments
2401 3rd Ave 98121Seattle, WA
Starting from
$1,676–$2,623/mo
About O2 Apartments in Seattle
O2 is a pet-friendly apartment community at 2401 3rd Avenue in Belltown, with furnished apartments available. Homes mix natural wood floors and metal accents with central air conditioning, stainless steel appliances, large closets and washers and dryers, with bay windows, balconies and water, city or mountain views in select homes. Residents have a sky garden rooftop with BBQ grills, a rooftop sky lounge, a 24/7 fitness center, a yoga room, a karaoke room, a media room and community terraces. An enclosed dog run, pet wash, package lockers and an enclosed garage are on-site.
O2 Apartments is a rental building at 2401 3rd Ave in Belltown, Seattle, WA, built in 2018.
7 apartments are listed right now: 2 studios at $1,676–$1,735 a month and 5 one-bedrooms at $2,114–$2,623 a month. Asking rents across the building run $1,676 to $2,623 per month. Pricing was last verified on October 27, 2026.
Residents have access to yoga studio, lounge spaces, sky lounge, community garden, sky garden rooftop, karaoke room, and high-intensity training room.
Floor plans at O2 Apartments
| Layout | Available | Size | Rent |
|---|---|---|---|
| Studio2 available | 2 | 362– | $1,676– |
| 1 Bedroom5 available | 5 | 502– | $2,114– |
Available units at O2 Apartments(7)
Sorted by rent, lowest first
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2Studio AStudio · 1 ba · 362 sq ftAvailable now$1,676/mo- 2Studio BStudio · 1 ba · 402 sq ftAvailable now$1,735/mo
- 2Urban 1 Bed 1 Bath G1 bd · 1 ba · 502 sq ftAvailable now$2,114/mo
- 21 Bed 1 Bath E1 bd · 1 ba · 745 sq ftAvailable now$2,527/mo
- 21 Bed 1 Bath Den K1 bd · 1 ba · 849 sq ftAvailable now$2,547/mo
- 21 Bed 1 Bath C1 bd · 1 ba · 614 sq ftAvailable now$2,563/mo
- 21 Bed 1 Bath B1 bd · 1 ba · 722 sq ftFrom Nov 25$2,623/mo
O2 Apartments Amenities
Yoga Studio
Yoga sanctuaries and studio
Lounge Spaces
Sky Lounge
Community garden
Sky Garden Rooftop
Sky Garden Rooftop for enjoying the Northwest beauty
Karaoke Room
High-Intensity Training Room
Frequently asked questions about O2 Apartments
How much does it cost to rent at O2 Apartments?
Listed rents at O2 Apartments currently start at $1,676 per month and go up to $2,623. By layout: 2 studios from $1,676, 5 one-bedrooms from $2,114.
What floor plans are available at O2 Apartments?
O2 Apartments currently lists 2 studios (362 sq ft–402 sq ft) and 5 one-bedrooms (502 sq ft–849 sq ft).
How do I schedule a tour at O2 Apartments?
Request a tour on Staycio at staycio.com/buildings/o2-apartments: pick a preferred date and time, and you'll get an email confirming the request.
Where is O2 Apartments located?
O2 Apartments is at 2401 3rd Ave, Seattle, WA, in the Belltown neighborhood.