Thurston County Assessor
Parcel Number: 12808230104
 
Situs Address: 4249 NW 20TH LN
 
Owner: MASON, JEFFREY & MARIANNE
Address:4249 20TH LN NW
 OLYMPIA, WA 98502
 
Taxpayer: MASON, JEFFREY S & MARIANNE E
Address:4249 20TH LN NW
 OLYMPIA, WA 98502
 
Abbreviated Legal:8-18-2W SW NW KA LOT 6 LL-0865 3080544
 
Date: 2/21/2026
 
Sect/Town/Range:08 18 2W
 
Size:8.06 Acres
UseCode:11 Single Unit
TCA Number:160
Neighborhood:12U1
Property Type:RES
Total Living Units:1
Taxable:YES
Active Exemptions:None
Fire District:FIRE DISTRICT #09
School District:OLYMPIA S.D. #111
 
Water Source:WELL
Sewer Type:SEPTIC

Market Values

Tax Year2026202520242023202220212020201920182017
Assessment Year2025202420232022202120202019201820172016
 
Market Value Land$225,900$210,300$185,500$158,100$150,000$123,400$122,000$118,500$128,800$109,700
Market Value Buildings$512,600$606,200$557,700$564,800$474,800$400,300$420,800$416,400$376,100$292,400
Market Value Total$738,500$816,500$743,200$722,900$624,800$523,700$542,800$534,900$504,900$402,100

Residential Structures

Year Built2003 Fireplaces/Wood Stoves0
ConstructionRAMBLER Heat TypeHTPUMP/AC
Construction QualityGOOD Fuel TypeELECTRIC
Physical ConditionAVERAGE Foundation TypeCONCRETE
Number of Bedrooms4 Exterior Wall TypeWOOD-SIDING
Full Baths2 Roofing MaterialCOMPOSITION
Partial Baths1     
   
Residence Square Footage
Main Finished Area2186
Attached Garage Square Footage
Attached Garage Sqft513
Misc Structures
Covered Porch102

Detached Structures

StructureYear BuiltSquare FeetQualityCondition
 
FRAME-GARAGE2010384AVERAGEAVERAGE
CARPORT2010240FAIRAVERAGE

Land Characteristics

Land Flag9150
 
Lot Square FootageNot Listed
 
Lot Acreage8.06
 
Effective FrontageNot Listed
 
Effective DepthNot Listed
 
Land Influence(s)W6-60%-WETLAND
SP-SHAPE

Sales

Sale Date:11/07/200302/06/200305/13/2002
Price:$325,000$63,000 
Excise:318424308674300547
Sale Type:STATUTRY WARNTY DEEDSTATUTRY WARNTY DEEDPERSNL REPRESNT DEED
Recording Number:359664235036763439257
Seller:NYCOLASCHER NANCYLASCHER MICHAEL
Buyer:MASON JEFFREY & MARIANNENYCOLASCHER JANE
Multiple Parcel Sale:NNN
 
Sale Date:05/06/1998
Price:$64,000
Excise:258973
Sale Type:STATUTRY WARNTY DEED
Recording Number:3152496
Seller:OLSON ROBERT
Buyer:LASCHER MICHAEL
Multiple Parcel Sale:N
 

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