Thurston County Assessor
Parcel Number: 78506100100
 
Situs Address: 400 UNION AVE SE
 
Owner: WASHINGTON STATE EMPLOYEE CREDIT UNION
Address:PO BOX WSECU
 OLYMPIA, WA 98507
 
Taxpayer: WASHINGTON STATE EMPLOYEE CREDIT UNION
Address:PO BOX WSECU
 OLYMPIA, WA 98507
 
Abbreviated Legal:SYLVESTER ALL BLOCK 61
 
Associations:99002192556    BETTER PROPERTIES OLYMPIA
 99002163910    EVERGREEN COMMERCIAL CLEANING LLC
 99002091922   J PATRICK QUINN LLM PS
 99002192653    LAW OFFICES OF PRESTON WHITE PS
 99002178183    ONE WASHINGTON FINANCIAL
 99002148369    REGUS MANAGEMENT GROUP LLC
 99002199050    SCHWEITZER ENGINEERING LABORATORIES INC
 99002178184    WSECU
Date: 2/21/2026
 
Sect/Town/Range:23 18 2W
 
Size:1.32 Acres
UseCode:61 Service - Finance
TCA Number:110
Neighborhood:3OFB
Property Type:OFF
Taxable:YES
Active Exemptions:None
School District:OLYMPIA S.D. #111
 
Water Source:PUBLIC
Sewer Type:SEWER

Market Values

Tax Year2026202520242023202220212020201920182017
Assessment Year2025202420232022202120202019201820172016
 
Market Value Land$1,649,200$1,317,500$1,154,500$1,107,500$1,367,500$953,000$965,100$904,700$1,709,900$1,452,250
Market Value Buildings$4,716,100$5,241,000$5,775,100$6,115,500$4,922,100$5,206,200$5,055,700$4,322,200$4,492,100$3,811,700
Market Value Total$6,365,300$6,558,500$6,929,600$7,223,000$6,289,600$6,159,200$6,020,800$5,226,900$6,202,000$5,263,950


Commercial Structures

BuildingYear BuiltFloorSquare FeetNo. FloorsTotal Sq. Ft.QualityCondition
BANK198713411341GOODGOOD
OFFICE1977213066113066GOODGOOD
OFFICE1977111763111763GOODGOOD
OFFICE MODERN BSMT1977010915110915GOODGOOD
   
 ---------- 
 36085
 
 

Detached Structures

StructureYear BuiltSquare FeetQualityCondition
 
PVNG-ASPHALT197732460AVERAGEAVERAGE
PVNG-CONCRTE19771460AVERAGEAVERAGE

Land Characteristics

Land Flag6000
 
Lot Square Footage57600
 
Lot Acreage1.32
 
Effective FrontageNot Listed
 
Effective DepthNot Listed
 
Land Influence(s)LT-LIGHT TRAFFIC

The Assessor's Office maintains property records on approximately 112,000 parcels in Thurston County for tax purposes. Though records are updated regularly, the accuracy and timeliness of published data cannot be guaranteed. Any person or entity that relies on information obtained from this website does so at his or her own risk. Neither Thurston County nor the Assessor will be held liable for damage or losses caused by use of this information. All critical information should be independently verified.
 

Office of the Assessor

Steven J. Drew, Assessor
3000 Pacific Ave SE, Olympia WA 98501
Customer Service (360)867-2200 -- Fax (360)867-2201 -- TDD (360)754-2933