12410 78th Ave S, Seattle, WA 98178 Property Records

King County property record for 12410 78th Ave S, Seattle, WA 98178

Property Summary

Property TypeSingle Family Home
Details4 bd · 1.75 ba · 2,300 sqft · built 1956
Lot Size0.251 acres (10,950 sqft)
OwnerIndividual Name on Record
Last Sale$129,950 (Jul 1999)
Tax Bill$7,974 (2026)
Flood ZoneZone X (minimal risk)
APN758020-0075

Property Details

APN / Parcel Number

Primary APN758020-0075
Alternative APN
  • 758020007509

Interior

Bedrooms4 Beds
Full Baths1.75 Baths
Half Baths1 Half Bath
Stories1 Story
Building Area2,300 sqft Living Area
Gross Area2,670 sqft
1st Floor Area2,300 sqft
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1956
Effective Year BuiltEffective 1956
Lot Area10,950 sqft (0.251 acres)
Garage TypeAttached
Garage Area370 sqft
Parking Spaces1 Parking Space

Utilities, Heating & Cooling

Heating SystemForced Air with A/C
Heating FuelElectric
SewerConnected
Water SourceCommercial

Location & Zoning

Account Number758020007509
Street Address12410 78TH AVE S
CitySEATTLE
StateWA
Zip98178-4820
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR-6
Legal DescriptionSCENIC RIDGE HEIGHTS ADD PLAT BLOCK: 2 PLAT LOT: 2
Legal Range04
Legal Township23
Legal Section12
Legal SubdivisionSCENIC RIDGE HEIGHTS ADD
Legal Block2
Legal Lot Number2
JurisdictionKING WA
Township / Civil DivisionSEATTLE
Census Block Group4
Census Block4018
Census Tract26001

Owner

Source: King County records, as of July 7, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of RecordIndividual Name on Record
Mailing Address12410 78TH AVE S, SEATTLE, WA 98178-4820
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last SaleJul 13, 1999 · Amount on Record
Deed SaleJul 13, 1999 · Amount on Record
Deed Document Number19991535
Record UpdatedSep 20, 2026

Tax Assessment & Valuation

Source: King County assessment roll, as of July 7, 2026

Property Jurisdictions

TypeName
StateWashington
CountyKing County
Unified School DistrictRenton School District (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2026$7,974.00 (+2.96%)
2025$660,000 (-2.65%) Land $359,000 Building $301,000$660,000 (-2.65%) Land $359,000 Building $301,000
2024$7,745.00 (+15.08%)$678,000 (+9%) Land $378,000 Building $300,000$678,000 (+9%) Land $378,000 Building $300,000
2022$6,730.00$622,000 Land $228,000 Building $394,000$622,000 Land $228,000 Building $394,000

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

Flood

Source: FEMA National Flood Hazard Layer, effective September 23, 2026

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

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

Wildfire RiskNot rated
no burnable land within 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 SystemSKYWAY WATER & SEWER
serves 12,036 people · EPA ID WA5338800
Water SourcePurchased surface water from several systems
Last State InspectionOct 2022
LeadUnder 1 ppb (2023–2025)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
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 487 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
CenturyLink
Fiber · DSL in parts of the area
8,000 / 8,000
Xfinity
Cable
2,000 / 250
AT&T
Fixed Wireless
100 / 20
T-Mobile
Fixed Wireless
100 / 20

May also be available: Verizon.

Nearby Properties on 78th Ave S

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