King County, WA Office Spaces for Rent

Find the best King County, WA office space among 3,580 for rent listings currently on the market.

Times Square Bldg

414 Olive Way, Belltown, Seattle, WA
Property

Office

61,533 SF
Availability

6 Spaces

48,766 SF
Year Built

1916
For Lease Contact for pricing
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8020 161st Avenue NE

8020 161st Avenue NE, Downtown Redmond, Redmond, WA
Property

Retail

2,100 SF
Availability

2 Spaces

2,052 SF
Year Built

2021
For Lease Contact for pricing
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21804 Marine View Dr S

21804 Marine View Dr S, Central Des Moines, Des Moines, WA
Property

Retail

1,511 SF
Availability

2 Spaces

1,504 SF
Year Built

1998
For Lease

$36.00/SF/YR
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SW Seattle Ambulatory Surgery Center

275 SW 160TH ST, Burien, WA
Property

Office

21,670 SF
Availability

1 Space

1,684 SF
For Lease

$28.00/SF/YR
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King County, WA Office Inventory Breakdown

There are a number of factors that make a city attractive for businesses to relocate or expand, as well as for investors to enhance their portfolios through local acquisitions. Among the most important factors to consider are the size and quality of the local office market, which is an essential component of the local economy.

Total Office Space in Seattle: 159,621,638 Sq. Ft.

In 2025 the Seattle office market encompassed 159,621,638 square feet of space. Out of that total, 28,140,294 square feet were in office properties sized between 500,000 and 1,000,000 square feet. Meanwhile, 20,557,906 square feet were in office buildings sized between 50,000 and 100,000 square feet.
Class A office space makes up a 55.4% share of Seattle office inventory, while Class B office assets represent roughly 33% of the market total.

Seattle Office Market Breakdown by Building Size
Building Size Range	Total Square Feet	Share of Total Office
50k to 100k Sq. Ft.	20,557,906 Sq. Ft.	12.88%
100k to 500k Sq. Ft.	78,971,907 Sq. Ft.	49.47%
500k to 1M Sq. Ft.	28,140,294 Sq. Ft.	17.63%
> 1M Sq. Ft.	18,777,992 Sq. Ft.	11.76%

Seattle Office Market Breakdown by Building Quality Rating
Class	Total Square Feet	Share of Total Office
Class A+	15,143,661 Sq. Ft.	9.49%
Class A	88,432,235 Sq. Ft.	55.4%
Class B	52,669,406 Sq. Ft.	33%
Class C	3,169,953 Sq. Ft.	1.99%

Data was provided by CommercialEdge, refers to properties larger than 50,000 square feet.

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King County, WA Office Spaces for Rent

Times Square Bldg

8020 161st Avenue NE

21804 Marine View Dr S

SW Seattle Ambulatory Surgery Center

King County, WA Office Inventory Breakdown

Total Office Space in Seattle: 159,621,638 Sq. Ft.

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