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423 18th Ave SE, Olympia, WA 98501 Property Records

Thurston County property record for 423 18th Ave SE, Olympia, WA 98501

Property Summary

Property TypeSingle Family Home
Details3 bd · 2 ba · 1,968 sqft · built 1924
Lot Size0.31 acres (13,504 sqft)
Owner2 Owner Names on File
Last Sale$167,900 (Nov 2000)
Tax Bill$10 (2026)
Deeds & MortgagesJun 2023 Line of Credit
Flood ZoneZone X (minimal risk)
APN3940-01-00100

Property Details

APN / Parcel Number

Primary APN3940-01-00100

Interior

Bedrooms3 Beds
Full Baths2 Baths
Half Baths1 Half Bath
Plumbing Fixtures9 Plumbing Fixtures
Stories1 Story
Building Area1,968 sqft Finished Area
1st Floor Area1,366 sqft
Attic Area602 sqft
Basement Area1,311 sqft
Finished Basement1,311 sqft
FlooringWood
FireplaceFireplace

Exterior

Year BuiltBuilt 1924
Effective Year BuiltEffective 1980
Architectural StyleRanch
Exterior MaterialWood Siding
Construction TypeWood Frame
Foundation TypeConcrete
Roof TypeGable
Roof MaterialComposition Shingle
Lot Area13,504 sqft (0.31 acres)
TerrainOther
Garage TypeAttached
Garage Area440 sqft
Parking Spaces2 Parking Spaces
PorchCovered Porch
Porch Area428 sqft
Patio Area300 sqft

Utilities, Heating & Cooling

Cooling SystemHVAC
Heating SystemForced Air
Heating FuelGas
SewerMunicipal
Water SourceCommercial

Location & Zoning

Street Address423 18TH AVE SE
CityOLYMPIA
StateWA
Zip98501-2303
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionSECTION 23 TOWNSHIP 18 RANGE 2W QUARTER NW SE APPRAISAL COMBINATION FOR TAX PURPOSES ONLY: PARCEL 1: PLAT CENTRAL ADD TO OLY
Legal Range02W
Legal Township18N
Legal Section23
Legal QuarterNW
Legal SubdivisionCENTRAL ADDITION TO OLYMPIA
Legal Block1
Legal Lot Number1
JurisdictionTHURSTON WA
Township / Civil DivisionOLYMPIA
Census Block Group4
Census Block4002
Census Tract10100

Historic Designation

Source: NPS National Register of Historic Places, as of August 1, 2026

Historic DistrictWithin the South Capitol Neighborhood Historic District
listed 1991 · 484 contributing resources · NRIS 91001516

Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.

Owner

The current owner of 423 18th Ave SE bought it in November 2000.

Source: Thurston County records, as of March 11, 2026

Owner of Record2 Owner Names on File
Mailing Address423 18TH AVE SE, OLYMPIA, WA 98501-2303
OccupancyOwner Occupied

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleNov 30, 2000 · Amount on File
Deed SaleNov 30, 2000 · Amount on File
Deed Document Number3325397
Record UpdatedJun 8, 2026

June 2023: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionTHURSTON WA
Property Address423 18TH AVE SE, OLYMPIA, WA 98501-2303
Transaction TypeMortgage
Record UpdatedJun 26, 2023
Title CompanyTHURSTON COUNTY TITLE COMPANY, THURSTON COUNTY TITLE CO

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0004979909
DateJun 14, 2023
Instrument4979909
Lender
NameWASHINGTON STATE EMPLOYEES CU
TypeCredit Union
AddressOLYMPIA, WA 98501
Agreement
TypeLine of Credit
AmountAmount on Record
Interest
Rate TypeAdjustable Rate
Change FrequencyMonthly

Tax Assessment & Valuation

The 2026 property tax bill for 423 18th Ave SE was $10.

Source: Thurston County assessment roll, as of January 1, 2026

Property Jurisdictions

TypeName
StateWashington
CountyThurston County
MunicipalityOlympia City
Unified School DistrictOlympia School District (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2026$10.00
2025$587,800 Land $205,200 Building $382,600$587,800 Land $205,200 Building $382,600

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

FEMA maps place 423 18th Ave SE in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective May 8, 2024

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

Wildfire risk around 423 18th Ave SE is low, with less than a 0.01% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskLow
lower than 99.1% of the US · lower than 99.4% of Washington
Wildfire LikelihoodUnder 0.01% annual chance
ExposureNone
beyond ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water SystemCITY OF OLYMPIA
serves 126,966 people · EPA ID WA5363450
Water SourceGroundwater
Last State InspectionNov 2022
Lead3 ppb (2023–2025)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and Reporting1
last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes. This system sells water to local utilities; the supplier billing this address may be one of them.

Internet Providers

Source: FCC Broadband Data Collection, based on 144 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable		2,000 / 250
Verizon
Fixed Wireless		300 / 20

May also be available: AT&T, Ziply Fiber.

Nearby Properties on 18th Ave SE

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