The Terminal 91 uplands lie near the Ballard Interbay Manufacturing Industrial Center and are a vital piece of the Port of Seattle’s real estate portfolio. This industrial land is a gateway to the region’s economic growth and vibrant maritime community and creates and supports industrial business opportunities within close proximity to Interbay, Ballard, the Lake Washington Ship Canal, and Elliott Bay.
This two-phase project will construct flexible, light industrial building space to help support maritime manufacturers and fishing industry suppliers.
Project Overview
The Terminal 91 (T-91) Uplands Development Project will add approximately 400,000 square feet of building space to help support the maritime and fishing industries. Developing these buildings will give maritime manufacturers and fishing industry suppliers access to affordable, flexible building space in an area that is currently lacking.
The first phase will develop the northernmost piece of the property and create approximately 111,000 square feet of light industrial space with a three-building design scheme, as well as other site improvements including stormwater upgrades. These buildings will have the potential to house current T-91 tenants, as well as other maritime companies that have expressed interest in growing their maritime businesses. If you are interested in learning more about leasing at the T-91 Uplands, please contact Lily Ninburg at [email protected].
The second phase, immediately to the south of Phase 1, is available for development of another almost 300,000 square feet of additional light industrial space along with other improvements including extensive utility improvements.
The potential benefits of developing this land include:
- Achieving Port objectives to support fishing and maritime clusters and adding jobs in those sectors
- Adding major maritime business tenants at T-91
- Increasing light industrial space in the Ballard Interbay area at T-91
- Replacing aging storm water infrastructure with effective stormwater management controls, including water quality treatment to put T-91 in full compliance with Port and City of Seattle standards
- Building a new sewer system to serve the T-91 facility north of the Magnolia Bridge to support existing and future development
- Upgrading existing lighting, electrical, communications, and circulation-related infrastructure at T-91, including new bike commuter improvements
- Improving long-term financial viability of T-91
Phase 1 of the T-91 Uplands project is being designed and built to accommodate a flexible array of tenant space needs from 2,500 square feet, to approximately 60,000 square feet of leasable space for several contemporary maritime and related businesses. The new buildings are designed to accommodate a wide range of users that are increasingly being displaced from other locations.
Community Benefits
The development of the T-91 Uplands area north of the Magnolia Bridge supports the following Economic Development and Maritime Division goals toward achieving Century Agenda objectives:
- Continuing to grow the economic value of the fishing and maritime cluster, including the number of local jobs and business revenue
- Generating new revenue to support the Port’s commitments to stakeholders
- Prioritizing uses that support the commercial fishing industry, with a focus on anchoring the North Pacific fishing fleet
- Supporting anticipated growth in cruise ship operations
- Maximizing the use of facility assets

Timeline*
Phase 1 is in the design phase which is expected to be completed in 2028. Phase 1 will start with the demolition of two 1940s-era warehouses in the fall of 2026, with the larger construction project commencing in 2027.
| 30% Design | July 2026 |
| 60% Design | October 2026 |
| Early work and Demolition begins | November 2026 |
| 90% Design | January 2027 |
| Phase 1 construction begins | April 2027 |
| Phase 1 substantial completion | February 2028 |
*all dates are subject to change
Phase 2 is currently in the pre-planning stage and in negotiations with a prospective long-term ground lease tenant.
Estimated project costs
The total estimated project cost is approximately $131 million.
Contacts for this project:
- Lily Ninburg, Real Estate, [email protected]
- Andy Gregory, Communications and External Relations, [email protected]