Waterfront Office
For Lease
Contact for pricing
351 Elliott Ave W, Seattle, WA 98119
Three-building workplace campus with lab-ready suites, wellness certifications, and waterfront views.
Space Size7,680 SF - 22,743 SF
Days on Market48
Property Features for 351 Elliott Ave W
General Information
Standard status
Active
Size
7,680 SF - 22,743 SF
Net Rentable
12,500 SF
Class
A
Property subtype
office
Additional Details
Available Space
12,500-25,000 SF
Utilities to Site
Yes
Amenities
EV Charging stations
Backup power generators
On-site management office
WiFi connectivity throughout
Trellis-covered and open air table seating
Pre-function space with kitchen
Indoor/outdoor connected chef-driven F&B
Fitness center with locker rooms and showers
Elliott Bay waterfront views
Conference/training center and additional boardroom
Central turf with lounge-style seating
Building Details
Parking Ratio
1.7 per 1,000 SF
Spaces For Lease
at 351 Elliott Ave W Contact us- Suite
- 200
- Floor
- 2nd
- Size
- 22,368 SF
- Type
- Office
- Term
- Negotiable
- Availability
- Immediate
Available Space
- Suite
- 300
- Floor
- 3rd
- Size
- 22,743 SF
- Type
- Office
- Term
- Negotiable
- Availability
- Immediate
Available Space
- Suite
- 400
- Floor
- 4th
- Size
- 22,677 SF
- Type
- Office
- Term
- Negotiable
- Availability
- Immediate
Available Space
- Suite
- 100
- Floor
- 1st
- Size
- 7,680-17,962 SF
- Type
- Office
- Term
- Negotiable
- Availability
- Immediately
Available Space
- Suite
- 500
- Floor
- 5th
- Size
- 22,677 SF
- Type
- Office
- Term
- Negotiable
- Availability
- Immediately
Available Space
Show more
Listing Agency:
Seattle
(206) 971-7011
Listed By:
Tim Jones · License #25635
(206) 971-7011
Source:
Property.jll
Added: Jul 16
Changed: Aug 29
Last Checked: Sep 1 at 2:36PM
Displayed information is deemed reliable but is not guaranteed and should be independently verified. All listing content including descriptions, pricing, images are the copyrighted material of Seattle
Investment Insights
Based on property information with market context.
Unison Elliott Bay is a three-building office campus on the waterfront, offering outfitted laboratory suites along with customizable lab and office opportunities. The recently revitalized property is designed for life science and technology-oriented companies and includes an on-site management office. Buildings 401 and 501 feature 14-foot floor-to-floor heights, while available infrastructure includes 9,500 AMPS of 277/480V power and two backup generators serving the campus.
The property provides views toward Puget Sound and the Olympic Mountains, with access to nearby parks, the Bay Trail, Key Arena, Seattle Center, and Lower Queen Anne dining. LEED and Fitwel certifications, advanced air systems, EV charging stations, and covered and surface parking support a contemporary workplace environment. Spec suites range from 12,500 to 25,000 SF, and parking is available at 1.7/1,000 SF.
The property provides views toward Puget Sound and the Olympic Mountains, with access to nearby parks, the Bay Trail, Key Arena, Seattle Center, and Lower Queen Anne dining. LEED and Fitwel certifications, advanced air systems, EV charging stations, and covered and surface parking support a contemporary workplace environment. Spec suites range from 12,500 to 25,000 SF, and parking is available at 1.7/1,000 SF.
Key Highlights
- Waterfront campus with views of Puget Sound and the Olympic Mountains
- Three‑building office and laboratory destination with 12,500 to 25,000 SF spec suites
- 14’ floor‑to‑floor heights in buildings 401 and 501
Property Analytics
Property Profile
Current Use
Lease Details
Yes
Utilities to site
NNN (Triple Net)
Lease Type
Location Intelligence
Trade Area within ½ mile
2,936
Businesses Nearby
Explore this area
Business Placement
Demographics for 98119, WA
26,238
Population
15,323
Households
1.7
Avg Household Size
35
Median Age
71%
College-Educated
99%
High-School Grad
2.4 sq mi
ZIP Area
10,933
Density / Sq Mi
$125,021
Median Household Income
$74,038
Median Earnings
$1,963
Median Rent
$1,032,500
Median Home Value
Market
Lease Benchmarks for Seattle, WA
$28.51 /SF/Yr
Avg Asking Price
$4.18–$53 /SF/Yr
Price Range
11,910 SF
Avg Space Size
Vacancy Rate% for Office in Seattle, WA
Questions? Ask Rey
Realmo’s AI knows this listing — price, zoning, demand, history. Ask anything.
Frequently Asked Questions
What type of property is this?
Office units - Three-building workplace campus with lab-ready suites, wellness certifications, and waterfront views.
Where is this office units located?
The property is located at 351 Elliott Ave W Seattle, WA.
What are key features of this property?
This property features: Waterfront campus with views of Puget Sound and the Olympic Mountains; Three‑building office and laboratory destination with 12,500 to 25,000 SF spec suites; 14’ floor‑to‑floor heights in buildings 401 and 501
