
Seattle, WACompleted
Pier Nine Workplace
Four floors of open workspace, meeting rooms and a new connecting stair inside an occupied waterfront office building.
Services: General Contracting, VDC & Prefabrication
Ferrowgate Construction, Inc.Sheet A-106
- Client
- Harborline Software
- Location
- Seattle, WA
- Market
- Commercial & Workplace
- Delivery method
- General Contracting (Hard Bid)
- Scope
- Interior fit-out
- Size
- 58,000 sq ft · 4 stories
- Construction value
- $14.5M
- Architect
- Fenwick Interior Architecture
- Completed
- 2025
- Certification
- WELL Silver
Seattle officeProject record · demo data
58,000sq ftInterior area
4Floors connected
16weeksConstruction
How it was built
The problems this project had to solve.
Working above and below tenants
Other tenants stayed in the building throughout. Core drilling and demolition ran at night, and every floor was cleaned before morning.
A new stair through four floors
The connecting stair was cut through existing post-tensioned slabs. We scanned each slab to find the tendons before any cut was made.
Move-in on the lease date
Furniture installation overlapped with our final finishes under a shared schedule, and staff moved in on the date in the lease.
Zero recordable injuries in 61,000 hours worked
Safety program Across the whole project, all trades included.

Talk to the team that built it
Regional Manager, Western Washington

