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Class A Second-Floor Office Space
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2758 78th Ave SE, Mercer Island, WA 98040

Second-floor office with three conference rooms, eight private offices, open and kitchenette space in a Class A setting.

Space Size5,028 SF
Days on Market402

Property Features for 2758 78th Ave SE

General Information

Standard status Active
Size 5,028 SF
Class A
Property subtype OFFICE
Lease Type NNN

Space & Availability

Floor 2
Space Use Office
Sublease Yes
Private Offices 8
Meeting Rooms 3

Lease Terms

Lease Rate $31 /USD/SF/YR
Rent per SF/Year $31
CAM $12.79 /USD/SF/YR

Additional Details

Public Transit Yes

Spaces For Lease

at 2758 78th Ave SE Contact us

Island Square - Office Sublease $28/SF/Yr

Size
5,028 SF
Type
OFFICE
Lease Type
NNN
Availability
AVAILABLE
Sublease
Yes
*Reduced Rate* - Class A second floor office space located in the heart of Mercer...
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Listing Agency: Kidder Mathews
Listed By: Monica Wallace · License #27628
Source: Moodyscre
Added: Aug 8, 2025 Changed: Sep 8 Last Checked: Sep 13 at 9:49AM

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 Kidder Mathews

Investment Insights

Based on property information with market context.

Class A second-floor office space totaling 5,028 SF located in Mercer Island. The layout includes three conference rooms, eight private offices, an open area, a copy area, and a kitchenette. An extensive window line runs throughout the space, creating a bright, naturally lit work environment.

The space is available on a sublease basis through March 31, 2027, with potential extension directly through the landlord. It is about a 5-minute walk from the transit center and the new light rail station (estimated to open in 2026).

The interior configuration is well-suited for teams that need multiple meeting rooms alongside dedicated private office space and an open collaborative area.

Key Highlights

  • 5,028 SF Class A second‑floor office space
  • Three conference rooms plus eight private offices
  • Open area, copy area and kitchenette included

Property Analytics

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Open Analytics

Current Use

ChargePoint Charging Station Electric Vehicle Charging Station Island Square Apartment Building East/West ESL Tutoring ... Language School Just Poke Mercer ... Restaurant

Suggested Use

Top Pick Auto Repair Shop Garden Center (Bike/Boat/Book/etc) Store Storage Facility Catering Service Grocery & Convenience 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
$4.65 /SF/Yr
CAM

Location Intelligence

Trade Area within ½ mile

1,429
Businesses Nearby

Demographics for 98040, WA

25,748
Population
10,454
Households
2.5
Avg Household Size
44
Median Age
79%
College-Educated
98%
High-School Grad
6.4 sq mi
ZIP Area
4,023
Density / Sq Mi
$202,359
Median Household Income
$96,073
Median Earnings
$2,464
Median Rent
$1,884,200
Median Home Value
Check the figures for this property Cap Rate, Value Estimation, Potential NOI and more
View Realmo Analytics

Market

Vacancy Rate% for Office in West region

11% 2019
14.1% 2020
15.5% 2021
17.2% 2022
19.9% 2023
21% 2024
20.8% 2025
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Frequently Asked Questions

What type of property is this?
Office units - Second-floor office with three conference rooms, eight private offices, open and kitchenette space in a Class A setting.
Where is this office units located?
The property is located at 2758 78th Ave SE Mercer Island, WA.
What is the lease rate?
The lease rate is $31 SF/Yr.
What are key features of this property?
This property features: 5,028 SF Class A second‑floor office space; Three conference rooms plus eight private offices; Open area, copy area and kitchenette included
(425) 450-1104 Call to check price and availability
More about this property
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