Class A Lab/Office
For Lease
Contact for pricing
307-319 Westlake Ave N, Seattle, WA 98109
Five-story lab and office property with outdoor terraces and a streetcar stop directly in front.
Space Size6,000 SF - 30,300 SF
Days on Market97
Property Features for 307-319 Westlake Ave N
General Information
Standard status
Active
Size
6,000 SF - 30,300 SF
Net Rentable
6,000 SF
Class
Unclassified
Property subtype
lab
Space & Availability
Available Space
6,000-30,300 SF
Space Use
Office
Available From
Immediate
Additional Details
Public Transit
Yes
Amenities
exceptional building systems
inviting outdoor terraces
views of Lake Union and Seattle
Two passenger and one freight elevators
Views of Lake Union, the Space Needle, and downtown Seattle
Secure bike storage and shower facilities
On-site café and coffee house
Conference center
116 secure on-site below-grade parking stalls
Single floor plates to accommodate both small and larger tenants
Building Details
Stories
5
Spaces For Lease
at 307-319 Westlake Ave N Contact usAvailable Space 6/1/2025
Floor
1
Size
6,000 SF
Type
Flex/R&D
Term
Negotiable
Available Space 6/1/2025
Floor
2
Size
30,300 SF
Type
Flex/R&D
Term
Negotiable
Available Space 6/1/2025
Floor
4
Size
28,000 SF
Type
Flex/R&D
Term
Negotiable
Available Space 6/1/2025
Floor
5
Size
28,000 SF
Type
Flex/R&D
Term
Negotiable
Listing Agency:
Seattle
(206) 607-1700
Listed By:
Bailey Aggen · License #21017393
(206) 607-1717
Source:
Property.jll
Added: Jul 16
Changed: Oct 4
Last Checked: Oct 20 at 5:43PM
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
Ask AI about this property
Review the available facts, identify missing information and prepare questions for the agent.
Investment Insights
Based on property information with market context.
Available for lease at 307-319 Westlake Ave N, this five-story Class A building is configured for lab and office use. The property offers suites ranging from 6,000 to 30,300 SF, along with outdoor terraces and building systems suited to its lab-oriented design.
Public transportation is immediately accessible, with a streetcar stop positioned in front of the building. The property also provides views of Lake Union and Seattle, adding a notable setting for office and laboratory users.
Public transportation is immediately accessible, with a streetcar stop positioned in front of the building. The property also provides views of Lake Union and Seattle, adding a notable setting for office and laboratory users.
Key Highlights
- 5‑story Class A lab building
- 6,000 - 30,300 SF available for lease
- Lab and office configuration
Property Analytics
Current Use
Lease Details
NNN (Triple Net)
Lease Type
Location Intelligence
Trade Area within ½ mile
8,157
Businesses Nearby
Explore this area
Business Placement
Demographics for 98109, WA
34,551
Population
23,162
Households
1.5
Avg Household Size
32
Median Age
78%
College-Educated
98%
High-School Grad
1.9 sq mi
ZIP Area
18,185
Density / Sq Mi
$130,845
Median Household Income
$104,202
Median Earnings
$2,329
Median Rent
$986,000
Median Home Value
Market
Lease Benchmarks for Seattle, WA
$27.96 /SF/Yr
Avg Asking Price
$2.56–$53 /SF/Yr
Price Range
12,237 SF
Avg Space Size
Vacancy Rate% for Office in Seattle, WA
Frequently Asked Questions
What type of property is this?
Office unit - Five-story lab and office property with outdoor terraces and a streetcar stop directly in front.
Where is this office unit located?
The property is located at 307-319 Westlake Ave N Seattle, WA.
What are key features of this property?
This property features: 5‑story Class A lab building; 6,000 - 30,300 SF available for lease; Lab and office configuration
