Skyscraper · United States

How much does Aero1200 cost?

Aero1200, formerly known as WB1200 and 1200 Stewart, is a 1.4-million-square-foot mixed-use complex under construction in Seattle's Denny Triangle. Two residential towers and a shared podium are planned to contain 927 apartments, a 121-room hotel, retail and commercial space, and a public galleria built around a suspended Boeing 747 fuselage. Construction began in 2018; OPTrust took control after the original developer lost the project, and phased opening was expected in 2027 as of May 2026.

Reported project cost

$381 million

Cost basis: 2023

1200 Stewart
PeacerayCC BY-SA 3.0

Cost record

How the cost changed

Budgets, contracts and final costs may cover different stages. Each figure keeps its own year and source.

Financing amount

2025

$420 million

djc.com

Project metrics

Key dimensions

Floor areaHenriquez Partners Architects
130,064.256 m²

Project record

Timeline

  1. 2018

    Construction started

    Puget Sound Business Journal
  2. 2027

    Current completion estimate

    Seattle Daily Journal of Commerce

Now make the guess

Could you estimate it without seeing the answer?

BudgetGuessr turns real project costs into a daily estimation challenge.

Play BudgetGuessr

Keep exploring

View all projects