Thurston County Assessor
Parcel Number: 43610002500
 
Situs Address: 8510 NE WILLOW DR
 
Owner: KOSTELNY, WILLIAM D
Address:8510 WILLOW DR NE
 OLYMPIA, WA 98506
 
Taxpayer: KOSTELNY, WILLIAM D
Address:8510 WILLOW DR NE
 OLYMPIA, WA 98506
 
Abbreviated Legal:Section 12 Township 19 Range 2W Plat DANA SHORES BLA-1435 TR A Document 014/474
 
Date: 2/21/2026
 
Sect/Town/Range:12 19 2W
 
Size:2.13 Acres
UseCode:11 Single Unit
TCA Number:155
Neighborhood:17Z1
Property Type:RES
Total Living Units:1
Taxable:YES
Active Exemptions:None
Fire District:FIRE DISTRICT #08
School District:OLYMPIA S.D. #111
 
Water Source:PUBLIC
Sewer Type:SEPTIC

Market Values

Tax Year2026202520242023202220212020201920182017
Assessment Year2025202420232022202120202019201820172016
 
Market Value Land$160,600$149,100$132,000$107,000$100,700$69,800$87,700$69,800$66,600$70,100
Market Value Buildings$584,400$571,900$564,800$639,900$523,500$518,800$410,500$468,300$413,500$379,600
Market Value Total$745,000$721,000$696,800$746,900$624,200$588,600$498,200$538,100$480,100$449,700

Residential Structures

Year Built1964 Fireplaces/Wood Stoves2
Construction1 1/2 STORY Heat TypeHTPUMP/AC
Construction QualityAVERAGE Fuel TypeGAS
Physical ConditionAVERAGE Foundation TypeCONCRETE
Number of Bedrooms3 Exterior Wall TypeWOOD-SIDING
Full Baths2 Roofing MaterialCOMPOSITION
Partial Baths1     
   
Residence Square Footage
Main Finished Area1901
Upper Finished Area792
Attached Garage Square Footage
Attached Garage Sqft553
Misc Structures
Covered Porch570
Wood Deck414

Detached Structures

StructureYear BuiltSquare FeetQualityCondition
 
FRAME-GARAGE20013653AVERAGEAVERAGE
POLE BUILDING20131728AVERAGEAVERAGE

Land Characteristics

Land Flag9150
 
Lot Square Footage92783
 
Lot Acreage2.13
 
Effective FrontageNot Listed
 
Effective DepthNot Listed
 
Land Influence(s)LV-LIMITED-VIEW
WT-HIGH WATER TABLE
AR-ACCESS-RIGHTS

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