21431 SE 258th St, Maple Valley, WA 98038 Property Records

King County property record for 21431 SE 258th St, Maple Valley, WA 98038

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.5 ba · 2,260 sqft · built 1996
Lot Size	0.336 acres (14,620 sqft)
Owner	Individual Name on File
Last Sale	$60,000 (Mar 1995)
Tax Bill	$9,317 (2026)
Deeds & Mortgages	Jun 2026 Line of Credit
Flood Zone	Zone X (minimal risk)
APN	`508850-0250`

Property Details

APN / Parcel Number

Primary APN	`508850-0250`
Alternative APN	`508850025000`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Stories	2 Stories
Building Area	2,260 sqft Living Area
Gross Area	2,930 sqft
1st Floor Area	1,170 sqft
2nd Floor Area	1,090 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1996
Effective Year Built	Effective 1996
Exterior Material	Brick
Lot Area	14,620 sqft (0.336 acres)
Garage Type	Attached
Garage Area	670 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Heating System	Forced Air with A/C
Heating Fuel	Electric
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Account Number	508850025000
Street Address	21431 SE 258TH ST
City	MAPLE VALLEY
State	WA
Zip	98038-7559
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R-4
Legal Description	MAPLE DOWNS
Legal Range	06
Legal Township	22
Legal Section	28
Legal Subdivision	MAPLE DOWNS
Legal Lot Number	25
Jurisdiction	KING WA
Township / Civil Division	TAHOMA-MAPLE VALLEY
Census Block Group	1
Census Block	1010
Census Tract	32008

Owner

21431 SE 258th St is owned and occupied by an individual who bought it in March 1995.

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

Owner of Record	Individual Name on File
Mailing Address	21431 SE 258TH ST, MAPLE VALLEY, WA 98038-7559
Occupancy	Owner Occupied
Owner Type	Individual

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 Names	Name on Deed
Last Sale	Mar 3, 1995 · Amount on File
Deed Sale	Mar 3, 1995 · Amount on File
Deed Document Number	1995387
Prior Transfer Date	Jan 26, 1995
Prior Transfer Doc	0000000387
Record Updated	Sep 20, 2026

June 2026: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	KING WA
Recording Date	Jun 23, 2026
Property Address	21431 SE 258TH ST, MAPLE VALLEY, WA 98038-7559
Document Number	0000000362
Instrument Date	Jun 12, 2026
Instrument	2026362
Transaction Type	Mortgage
Record Updated	Jul 12, 2026
Title Company	NONE LISTED ON DOCUMENT

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	21431 SE 258TH ST, MAPLE VALLEY, WA 98038-7559

Mortgage

Document Number	0000000362,
Date	Jun 23, 2026
Instrument	2026362

Lender

Name	BOEING EMPLOYEES CREDIT UNION

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	300 Months
Due	Jun 17, 2051

Interest

Rate Type	Adjustable Rate
Rate	6.36%
Initial Type	Adjustable Rate
Adjustable	Adjustable Rate Rider
Max Rate	-1%

Tax Assessment & Valuation

The 2026 property tax bill for 21431 SE 258th St was $9,317, up 5.6% from the year before.

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

Property Jurisdictions

Type	Name
State	Washington
County	King County
Municipality	Maple Valley City
Unified School District	Tahoma School District (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026	$9,317.00 (+5.6%)
2025	$8,823.00	$835,000 (+4.64%) Land $434,000 Building $401,000	$835,000 (+4.64%) Land $434,000 Building $401,000
2024	$8,823.00	$798,000 Land $420,000 Building $378,000	$798,000 Land $420,000 Building $378,000
2022	$7,691.00	$819,000 Land $237,000 Building $582,000	$819,000 Land $237,000 Building $582,000

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

Flood

FEMA maps place 21431 SE 258th St in Zone X, an area of minimal flood risk.

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

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

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

Wildfire

Wildfire risk around 21431 SE 258th St 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 Risk	Low lower than 99.1% of the US · lower than 99.4% of Washington
Wildfire Likelihood	Under 0.01% annual chance
Exposure	None 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 System	COVINGTON WATER DISTRICT serves 56,172 people · EPA ID WA5341650
Water Source	Purchased surface water from several systems
Last State Inspection	Oct 2024
Lead	1 ppb (2023–2025) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None 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 294 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	300 / 20
AT&T Fixed Wireless	100 / 20
T-Mobile Fixed Wireless	100 / 20