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400 Westlake Avenue North, Seattle, WA 98109

Office space available for rent in Seattle, Washington.

Space Size4,779 SF - 18,074 SF
Days on Market332

Property Features for 400 Westlake Avenue North

General Information

Standard status Active
Size 4,779 SF - 18,074 SF
Property subtype Office

Spaces For Lease

at 400 Westlake Avenue North Contact us
Name Size Type Rate Availability
10th Floor 15,259 SF Office Building Contact for pricing — Contact us
11th Floor 15,259 SF Office Building Contact for pricing — Contact us
12th Floor 15,259 SF Office Building Contact for pricing — Contact us
13th Floor 15,259 SF Office Building Contact for pricing — Contact us
14th Floor 15,578 SF Office Building Contact for pricing — Contact us
15th Floor 4,779 SF Office Building Contact for pricing — Contact us
2nd Floor 17,841 SF Office Building Contact for pricing — Contact us
3rd Floor 18,074 SF Office Building Contact for pricing — Contact us
4th Floor 16,043 SF Office Building Contact for pricing — Contact us
5th Floor 16,362 SF Office Building Contact for pricing — Contact us
6th Floor 16,043 SF Office Building Contact for pricing — Contact us
7th Floor 15,803 SF Office Building Contact for pricing — Contact us
8th Floor 15,259 SF Office Building Contact for pricing — Contact us
9th Floor 15,578 SF Office Building Contact for pricing — Contact us
Listing Agency: Newmark
Listed By: Cavan O'Keefe · License #26433
Source: Nmrk
Added: Nov 23, 2025 Changed: Oct 19 Last Checked: Oct 20 at 6:28PM

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 Newmark

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Investment Insights

Based on property information with market context.

This property offers office space for rent in Seattle, Washington. The property has a total size of 212396 square feet and multiple configurations are available.

Key Highlights

  • Multiple configurations available
  • Call broker for rates

Property Analytics

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Open Analytics

Current Use

First Choice Health Physician Seattle Airport Limo Limousine Service

Suggested Use

Top Pick Daycare Center Electrical Service Pet Store Auto Parts Store Pet Store & Service (Bike/Boat/Book/etc) Store

Score = modeled unmet demand for each use within ~1 mi (higher = bigger opportunity). Zoning and permitted uses should be independently verified with local authorities.

Lease Details

NNN (Triple Net)
Lease Type

Location Intelligence

Trade Area within ½ mile

7,918
Businesses Nearby

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
Check the figures for this property Cap Rate, Value Estimation, Potential NOI and more
View Realmo Analytics

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

8.5% 2019
13.4% 2020
17.6% 2021
19.5% 2022
24.3% 2023
30% 2024
32.3% 2025

Frequently Asked Questions

What type of property is this?
Office unit - Office space available for rent in Seattle, Washington.
Where is this office unit located?
The property is located at 400 Westlake Avenue North Seattle, WA.
What are key features of this property?
This property features: Multiple configurations available; Call broker for rates
More about this property
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