O2 Apartments

Living Wall

112 Parking Stalls

Residential Units

A 13-Story Residential Project in Seattle's Belltown Neighborhood

The residential building includes 116 units featuring large windows with views of downtown Seattle, multiple open-air amenity spaces, a living green wall, a gym, theatre room, dog run, and sky lounge. The exterior consists of post-tensioned concrete flat-plate for the main structure with pre-cast concrete and steel-framed bay windows. The project features three levels of below-grade parking with 4,000-square-feet of bike storage, multiple electric charging stations, and 112 parking stalls.

O2 Apartments, formerly known as Urban Green Villa, features a living green wall that will grow halfway up the Battery Street facade. Above the living wall, pocket gardens and terraces with signature terrace trees line the upper levels.

Specifications

Project Team

Project Specifications

Address: 2401 3rd Avenue, Seattle, WA

Client: Chainqui Development

Architect: Gwest Architecture

Structural Engineer: Coughlin Porter Lundeen

Size: 263,922 SF

Contaminated Remediation

Prior to the tower project, an existing building containing lead and asbestos was demolished. Careful planning and qualified subcontractor selection ensured a smooth, efficient, and environmentally responsible process with no significant budgetary impact. During preconstruction, JTM proactively identified cost-saving opportunities by suggesting alternate materials for non-critical finishes, maintaining design integrity while delivering meaningful savings.