11909 18th Ave Sw

Burien, Washington, 98146

Tax DeedpendingSells Oct 10, 2026 · in 6 days

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Opening bid

$20,044

Assessed value

$610,000

Land $316,000Improvement $294,000

Market / AVM

$733,000

Taxes owed

—

Parcel number: 764220-0190
Case number: —
Land use: Residential
Beds / baths: 4 bd · 1 ba
Building: 1,460 sqft
Acreage: 0.21
Lot size: 9,140 sqft
Year built: 1955
Owner of record: Michele Campbell
Last sale: $603,000 · 2020-03-19

Legal description

SEAMOUNT ADD

Property facts enriched via realestateapi · 9/29/2026

Aerial view of 11909 18th Ave Sw — the parcel

Aerial view of 11909 18th Ave Sw — what is around it

Property detail

RealEstateAPI PropertyDetail · Every populated field, as returned · 292 values

Summary(24)

Id	185,074,112
Beds	4
Baths	1
Mls type	ForSale
Cash buyer	Yes
Flood zone	Yes
Free clear	Yes
High equity	Yes
Last sale date	2020-03-19
Mls has photos	Yes

County records

Official appraiser / assessor — free, always available. Copy the parcel number if the link opens a search page.

Google Maps (parcel / address search) ↗

King County rules

Sale type: Tax Deed
Redemption: None once the county treasurer's deed issues (3-year delinquency threshold before that)
Return if redeemed: N/A — outright deed transfer
Statute: Revised Code of Washington Ch. 84.64

Full county profile →

Historical comps

No historical bucket for WA|Tax Deed

No recorded comps yet for this state/sale type. Run deedpilot-copilot import-history --deep and build-history-index.

Index 2026-08-01 · 87,879 total recorded outcomes

Liens that survive

Treasurer’s deed generally extinguishes most private liens; federal tax liens can survive. Verify local improvement district (LID) and other special assessments separately.

Quiet title

Practically often required for title insurance on Washington tax-deed / tax-title property before resale or refinance.

Verify before you bid

This record was compiled from the published sale list. Parcels are pulled, redeemed, and re-priced up to the moment of sale. Confirm the lot is still in the sale, and confirm the opening bid, directly with the county.

King County Treasury — Foreclosure / Real Estate Services Tax Title Sales ↗

Deal analysis

Your maximum bid

$444,213

Walk away above this. Projected profit at the ceiling: $219,900 (30% of ARV).

Opening bid $20,044

Room to bid $424,169

Confidence: medium — ARV from a provider market estimate, not comps.

History-guided suggestion

$171,943

Under max by $272,270

≤ oracle maxBid

Co-pilot target using recorded auction history. Never above your maximum bid.

History sample

—

Median sold

—

p(redeem) prior

—

No historical bucket for WA|Tax Deed; suggestion uses oracle only.

Your assumptions

After-repair value (ARV)

Override the derived estimate with real comps

Rehab budget

You cannot inspect before bidding — budget for the worst plausible condition

Known surviving liens

Municipal code enforcement, special assessments, federal tax liens

Target margin — 30%

Required profit as a share of ARV. 30% is a common floor for tax-sale flips.

How that number is built

Provider market estimate of $733,000. This is an as-is valuation, not an after-repair one — enter your own comparable-sales figure if the property needs work.

After-repair value: $733,000
Selling costs on exitassumed 8.0% of ARV — agent commission plus seller-side closing.: −$58,640
Rehabassumed No rehab budget entered — assumed $0. Tax-sale parcels are sold unseen and un-inspected; this is rarely correct.: −$0
Quiet title (required)assumed Midpoint of the typical WA range ($1,800–$5,000, ~5 months).: −$3,400
Deed recording and transferassumed Typical WA recording and deed issuance cost.: −$250
Holding costs (6 months)assumed Taxes, insurance, and securing the property at ~$1,100/month.: −$6,597
Surviving liensassumed Assumed $0 — not verified. Municipal code-enforcement liens, special assessments, and federal tax liens can survive the sale.: −$0
Target profit (30% of ARV): −$219,900
Maximum bid: $444,213

Before you bid

Rehab is assumed to be $0. You cannot inspect these properties before bidding — budget for the worst plausible condition.
Surviving liens assumed $0. A WASHINGTON TAX DEED CAN BE UNWOUND FOR THREE YEARS AND THE RECORD WILL NOT WARN YOU. RCW 84.64.070: "If the real property of any minor, or any person adjudicated to be legally incompetent, be sold for nonpayment of taxes, the same may be redeemed at any time within three years after the date of sale." Nothing in a title search reveals that a former owner was a minor or had been adjudicated incompetent, so this is a latent claim on every Washington parcel for three years. It is the reason quietTitle is marked required in a state whose deed is otherwise clean.
This is the most trustworthy derived ARV in the file — full market value, revalued every year — but the parcel is only physically inspected once every six years, so an annual revaluation is a model applied to a property nobody has looked at recently. On a tax-foreclosure parcel, where deterioration is the norm and is exactly what a model of comparable sales will miss, the assessment is likely to describe a building in better condition than the one being sold. Farm, agricultural, timber and open space land also has its own valuation basis outside RCW 84.40.030 and will sit far below market.

AI risk brief

Reads this parcel against KingCounty's rules and flags what could go wrong — surviving liens, redemption exposure, title cost, and the facts we don't have. Takes about 35 seconds; the result is saved, so opening this lot again is instant.

185,074,112

Beds

Baths

Mls type

ForSale

Cash buyer

Yes

Flood zone

Yes

Free clear

Yes

High equity

Yes

Last sale date

2020-03-19

Mls has photos

Yes