520 Diagonal St, Clarkston, WA 99403 Property Records

Asotin County property record for 520 Diagonal St, Clarkston, WA 99403

Property Summary

Property Type	Professional Building (Legal, Insurance, Real Estate, Business)
Lot Size	0.139 acres (6,098 sqft)
Owner	Company Name on File
Last Sale	$794,000 (Dec 2019)
Tax Bill	$2,145 (2023)
Deeds & Mortgages	Dec 2019 Sale
APN	`6-001-26-004-0000`

Property Details

APN / Parcel Number

Primary APN	`6-001-26-004-0000`
Alternative APNs	`10012600400000000` `595600` `596400`

Exterior

Lot Area	6,098 sqft (0.139 acres)

Location & Zoning

Account Number	596400
Old Parcel Number	10012600400000000
Street Address	520 DIAGONAL ST
City	CLARKSTON
State	WA
Zip	99403-1941
Property Category	Commercial
Property Type	Commercial > Office > Professional Building (Legal, Insurance, Real Estate, Business)
Legal Description	CLARKSTON LOTS 1 TO 4 BLK 26
Legal Subdivision	CLARKSTON
Legal Block	26
Legal Lot Number	1-4
Jurisdiction	ASOTIN WA
Census Block Group	3
Census Block	3023
Census Tract	960300

Owner

Source: Asotin County records · APN 6-001-26-004-0000

Assessment roll updated May 31, 2023 · Last verified November 2023

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

Owner of Record	Company Name on File
Mailing Address	16412 4TH AVE NE, SHORELINE, WA 98155-5717
Owner Type	Company

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Dec 03, 2019 · Amount on Record
Deed Sale	Dec 03, 2019 · Amount on Record
Deed Document Number	364180
Record Updated	Jun 07, 2026

December 2019: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	ASOTIN WA
Recording Date	Dec 03, 2019
Property Address	520 DIAGONAL ST, CLARKSTON, WA 99403-1941
Document Number	0000364180
Instrument Date	Nov 26, 2019
Instrument	364180
Transaction Type	Transfer
Record Updated	Jun 22, 2020
Title Company	ALLIANCE TITLE COMPANY, ALLIANCE TITLE & ESCROW

Transaction

Amount	Amount Recorded
Tax	$0.00
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	16412 4TH AVE NE SHORELINE WA 981555717, SHORELINE, WA 98155-5717

Tax Assessment & Valuation

Source: Asotin County records · Assessment roll updated May 31, 2023 · Last verified November 2023

Property Jurisdictions

Type	Name
State	Washington
County	Asotin County
Municipality	Clarkston City
Unified School District	Clarkston School District (KG - 12)

Tax Bill & Assessment History

Assessed value is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.

Year	Tax Bill	Assessed Value	Assessed Market Value
2023	$2,145.00
2022		$185,700 Land $25,000 Building $160,700	$185,700 Land $25,000 Building $160,700

Flood & Wildfire

Source: FEMA National Flood Hazard Layer · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood Zone	Not on file

Wildfire

Wildfire Risk	Low lower than 99.8% of the US · lower than 99.9% of Washington
Wildfire Likelihood	Under 0.01% annual chance
Exposure	None beyond ember reach

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

Internet Providers

Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026

Provider	Max Down / Up (Mbps)
Inland Cellular Telephone Company Fiber · Fixed Wireless in parts of the area	1,000 / 1,000
Cable One Cable	1,000 / 50
Lumen Technologies DSL	140 / 20

May also be available: First Step Internet, Newmax, Verizon.

Based on FCC filings for 535 locations within half a mile of this property.

Drinking Water

Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	PUD #1 OF ASOTIN COUNTY serves 21,930 people
Water Source	Groundwater
Last State Inspection	Jun 2024
Lead	4 ppb (2021–2023) 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 as reported to EPA, 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. The full violation and enforcement history is in the system's EPA record.