Alki Lumber Relocates From Future West Seattle Development Site

This article covers a significant shift in The Triangle’s industrial landscape as Alki Lumber prepares to relocate to a new site in South Park. Owned by Marine Lumber after a century under the Sweeney family, the move follows years of planning around the Triangle property. The Sweeney Blocks project envisions hundreds of apartments.

Readers will learn what has been announced and what remains under permits. The article also explains what this relocation means for the neighborhood’s development and local fabric.

Overview: The Move and Its Urban Context

Banners reading “We’re Moving Soon” have appeared at Alki Lumber’s longtime yard in The Triangle. This signals a relocation that is said to be imminent—likely within weeks.

The new logistics and site layout are being coordinated as part of a broader transition. This transition ties together industrial users, historic signage, and future mixed-use development.

The site’s change is not merely a business shift. It reflects a changing urban area where industrial facilities are increasingly integrated with residential growth in the city’s core corridors.

Background: Ownership and History

Alki Lumber, historically anchored in The Triangle, is now under the ownership of Marine Lumber. Marine Lumber purchased the yard from the Sweeney family after a century of family operation.

The transfer marks a long-running handoff in a neighborhood rooted in manufacturing and supply-chain activity. The move away from the Triangle property signals a new chapter for both the business and the area’s evolving land use.

Development Plans: Sweeney Blocks and Housing Vision

The Triangle site has been the subject of extensive planning for several years. The Sweeney Blocks concept contemplated two new buildings on the property, with the goal of delivering hundreds of apartments and a mixed-use edge along the street.

A 2021 rendering highlighted one of the proposed buildings and identified a potential location for a historic neon sign. The project advanced through Design Review in 2021, showing progress on the planning front while other permitting steps remained in process.

Design Review Milestones

Since the 2021 Design Review clearance, several major permits have been issued. Not all required approvals have yet been finalized.

This partial permitting status reflects the typical multi-agency process for substantial development. The neon-sign concept, the massing of the proposed blocks, and the integration with surrounding streetscape were among the design features scrutinized during the review.

The project’s future depends on completing the remaining permit packages. Coordinating construction phases with the timing of Alki Lumber’s relocation is also necessary.

• Upcoming permit finalization for the Sweeney Blocks project remains a key item.
• Signage, historical elements, and potential adaptive-reuse considerations are part of the remaining approvals.
• Alignment with traffic, utility, and environmental requirements will influence the pace of construction.

Permitting and the Timeline

With Alki Lumber preparing to move from The Triangle, the timeline has become a focal point for neighbors and developers. While the move is described as happening “very soon,” a precise date has not been finalized publicly.

The relocation to 558 S. Kenyon in South Park establishes the new home for Alki Lumber. This move sets the stage for the next phase of the Sweeney Blocks’ development.

The period ahead will likely feature coordinating site readiness, utility hookups, and final permit clearances. These steps will enable both the lumber operation’s transition and the phased introduction of residential components on the original Triangle site.

New Location and Address Details

The confirmed relocation address is 558 S. Kenyon, located in South Park. This shift moves the company’s footprint away from the Triangle and ties its operations into a different urban corridor.

As details emerge, stakeholders will be watching for how the new site’s layout, access routes, loading zones, and on-site facilities align with demand for building materials and construction supply services.

• Confirmation of the move date within the coming weeks.
• Continued updates on the status of the Sweeney Blocks and associated permitting.
• Clarification on how the neon-sign concept will be treated in the new development narrative.

What to Expect Next

Industry observers can expect more information soon about the move’s timing and the final permit list. Details about commitments related to the Sweeney Blocks’ phased construction are also anticipated.

For professionals in architecture and engineering, this transition offers a chance to study how a long-standing industrial operation handles relocation. The process will also influence a major mixed-use redevelopment.

In the coming months, officials and developers will likely share updates about infrastructure connections and traffic plans. They will also address how historical elements will be preserved while adding new housing to the site.

 
Here is the source article for this story: BIZNOTE: Alki Lumber about to move from future development site