King County, Washington · Wholesaling

Wholesaling Real Estate in King County, Washington

Wholesaling real estate in King County, Washington lets you profit from property deals without buying, renovating, or holding a home. You find a distressed property, sign a purchase contract with a motivated seller, and assign that contract to a cash buyer for a fee.

Assign contractsCash buyersProbate leadsPre-foreclosureAbsentee owners

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King County, Washington areas and ZIP codes map for real estate investors
$849,000
Median listing price (down 1.3%)
10,719
Active listings in King County
45 days
Average time on market
$2,665
Median rent (down 9.3%)

Market data: Realtor.com King County housing market, October 2026. Zillow Home Value Index for King County: $835,385 (down 2% from a year earlier), August 2026. View homes on Zillow.

Carolynn Castillo, ForeclosuresDaily.com customer

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Listed and sold 25 properties and personally bought and sold four fix-and-flip properties, all generated from probate leads.

Carolynn Castillo
Realtor & Broker · eXp Realty

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Local market snapshot

Why wholesale real estate in King County?

Wholesaling needs little capital because you control a property with a contract and an earnest money deposit, not a mortgage. In addition, your buyer handles the repairs, so you never manage contractors, and many assignments close in weeks rather than months.

King County is home to about 2.3 million residents as of the 2020 census, and its county seat is Seattle. Its ZIP codes span communities such as Algona, Black Diamond, Issaquah, and Mercer Island, and motivated-seller situations such as inherited homes, tired rentals, and pre-foreclosures show up across all of them.

With a population of this size, King County produces a steady flow of probate filings, divorces, and foreclosure notices every year. Investors who track these records and reach owners early tend to find the best off-market deals.

King County wholesale real estate investors finding off-market deals
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Step-by-step

How does wholesaling real estate work in King County?

Every wholesale deal follows the same path, from the first lead to the assignment fee:

Find a distressed property

Initially, use targeted lead generation to find owners with a reason to sell, such as heirs, tired landlords, or owners facing foreclosure.

Run the numbers

Next, estimate the after-repair value (ARV) from nearby sales, because your offer depends on it.

Sign a purchase contract

Then agree on a price that leaves room for your buyer’s profit as well as your assignment fee.

Find a cash buyer

After that, match the deal with a flipper, landlord, or other cash buyer from your list.

Assign the contract

In addition, transfer your rights under the contract to the buyer in exchange for your fee.

Collect your fee

Finally, the title company or closing attorney usually pays your assignment fee at closing.

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Targeted real estate lead generation

Motivated sellers who want to liquidate fast

For this reason, ForeclosuresDaily.com’s off-market real estate platform covers every major distress signal in King County, cross-referenced with tax rolls and property appraiser records.

Probate LeadsExecutors who must sell before the estate can close.Get probate leads →Pre-Probate LeadsFamilies who may sell before a probate case is filed.See pre-probate leads →Inheritance LeadsHeirs who want to sell because they will not keep the home.View inheritance leads →Foreclosure LeadsOwners behind on payments who want to sell before auction.Explore foreclosure leads →Divorce LeadsCouples who must sell when they divide shared assets.Find divorce leads →Eviction LeadsTired landlords who want out because of problem tenants.Browse eviction leads →Code Violation LeadsOwners facing fines because of open violations and costly repairs.Check code violation leads →Tax DelinquencyOwners behind on property taxes who need cash soon.Target tax-delinquent owners →Absentee Owner LeadsOut-of-area owners, especially those far from the property.Reach absentee owners →Life Leads & FSBOOwners selling on their own rather than with an agent.Shop all lead products →
Anthony Coletti, ForeclosuresDaily.com customer

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Anthony Coletti
Real estate investor

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Find a deal

How do you calculate a wholesale offer in King County?

Every offer starts with the ARV, which is what the home will be worth once it is fixed. For example, the 70% Rule says your buyer should pay no more than 70% of ARV minus repairs. Because your assignment fee comes out of that number, your contract price must be even lower.

For instance, here is the math using the King County median listing price as the ARV, an 8% repair budget, and a typical assignment fee.

Wholesale offer example

ARV$849,000
70% of ARV − repairs ($68,000)$526,300
Your assignment fee− $25,000
Your contract price$501,300
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Zip codes

King County ZIP codes to watch

Start your search in these King County ZIP codes, and then expand as you learn which areas your buyers want. Next, choose a ZIP code from the menu to open its investing data.

AlgonaZIP 98001$695,000Negotiate

Algona (98001) market snapshot

$695,000 ▼ 5.8%Median listing price
$310Price per sq ft
38 days ▼ 2.5%Days on market
$2,996 ▼ 0.1%Median rent
131 ▼ 8.6%Active listings
5.2%Gross rent yield

In addition, the Zillow Home Value Index is $621,056 (down 0.1% from a year earlier) as of August 2026.

Algona is a city in King County, Washington, and the Seattle metropolitan area, surrounded by the suburbs of Auburn to the north and east, Pacific to the south, and unincorporated King County to the west. Population: 3,290 (2020 census).

Investor note: Unincorporated area: permits, liens, and code enforcement are handled by the township or county, so pull records there. Commuter suburb: owner-occupant demand helps retail resales and quick assignments. Pull probate, pre-foreclosure, and absentee-owner leads for 98001 to find motivated sellers here.

Max offer when the ARV equals the median price$695,000 × 70% − $56,000 repairs = $430,500 max offer

Also see the full 98001 market report on Realtor.com →Then view 98001 homes on Zillow →

Black DiamondZIP 98010$759,475Negotiate

Black Diamond (98010) market snapshot

$759,475 ▼ 5.3%Median listing price
$356Price per sq ft
59 days ▼ 1.9%Days on market
$3,600 ▲ 1.1%Median rent
219 ▲ 5.6%Active listings
5.7%Gross rent yield

In addition, the Zillow Home Value Index is $759,096 (down 3.1% from a year earlier) as of August 2026.

Black Diamond is a city in King County, Washington. 6% growth rate, Black Diamond was the fastest growing small city in King County. Population: 4,697 (2020 census).

Investor note: Has its own local government, so check its code-violation, vacant-property, and rental-registration lists. Industrial history: older housing stock often needs updates, which suits fix-and-flip buyers.

Max offer when the ARV equals the median price$759,475 × 70% − $61,000 repairs = $470,633 max offer

Also see the full 98010 market report on Realtor.com →Then view 98010 homes on Zillow →

IssaquahZIP 98027$1,165,000Negotiate

Issaquah (98027) market snapshot

$1,165,000 ▼ 4.9%Median listing price
$510Price per sq ft
47 days ▲ 6.8%Days on market
$3,000Median rent
171 ▲ 16.1%Active listings
3.1%Gross rent yield

In addition, the Zillow Home Value Index is $1,153,766 (down 1.4% from a year earlier) as of August 2026.

Issaquah is a city in King County, Washington. Located in a valley and bisected by Interstate 90, the city is bordered by the Sammamish Plateau to the north and the "Issaquah Alps" to the south. It is home to the headquarters of the multinational retail company Costco Wholesale Corporation. Issaquah is included in the Seattle metropolitan area. Population: 40,051 (2020 census).

Max offer when the ARV equals the median price$1,165,000 × 70% − $93,000 repairs = $722,500 max offer

Also see the full 98027 market report on Realtor.com →Then view 98027 homes on Zillow →

Mercer IslandZIP 98040$2,724,000Negotiate

Mercer Island (98040) market snapshot

$2,724,000 ▼ 10.3%Median listing price
$825Price per sq ft
43 days ▼ 21.6%Days on market
$5,800 ▲ 7.5%Median rent
115 ▲ 19.6%Active listings
2.6%Gross rent yield

In addition, the Zillow Home Value Index is $2,258,055 (down 0.8% from a year earlier) as of August 2026.

Mercer Island is a city in King County, Washington, located on an island of the same name in the southern portion of Lake Washington. Mercer Island is in the Seattle metropolitan area, connected to the mainland on both sides by bridges carrying Interstate 90 and Link light rail, with the city of Seattle to the west and the city of Bellevue to the east. Population: 25,748 (2020 census).

Investor note: Water nearby: view and water-access homes often sell at a premium, so compare ARV carefully and check flood zones.

Max offer when the ARV equals the median price$2,724,000 × 70% − $218,000 repairs = $1,688,800 max offer

Also see the full 98040 market report on Realtor.com →Then view 98040 homes on Zillow →

RentonZIP 98055$557,450Negotiate

Renton (98055) market snapshot

$557,450 ▼ 6.3%Median listing price
$337Price per sq ft
63 days ▲ 40%Days on market
$3,325 ▲ 18.8%Median rent
78 ▲ 27.3%Active listings
7.2%Gross rent yield

In addition, the Zillow Home Value Index is $638,160 (down 2% from a year earlier) as of August 2026.

Renton is a city in King County, Washington, and an inner-ring suburb of Seattle. Situated 11 miles southeast of Seattle, Renton straddles the southeast shore of Lake Washington, at the mouth of the Cedar River. The city is currently the 6th most populous municipality in greater Seattle and the 8th most populous city in Washington.

Max offer when the ARV equals the median price$557,450 × 70% − $45,000 repairs = $345,215 max offer

Also see the full 98055 market report on Realtor.com →Then view 98055 homes on Zillow →

SeattleZIP 98102$849,950Negotiate

Seattle (98102) market snapshot

$849,950 ▼ 7.7%Median listing price
$636Price per sq ft
44 days ▼ 16.4%Days on market
$2,600 ▼ 13%Median rent
165 ▲ 9.6%Active listings
3.7%Gross rent yield

In addition, the Zillow Home Value Index is $745,010 (down 2.6% from a year earlier) as of August 2026.

Seattle is the most populous city in the U.S. state of Washington and the Pacific Northwest region of North America. 15 million residents is the 15th-most populous metropolitan area in the nation. The city is the county seat of King County, the most populous county in Washington. 1% between 2010 and 2020 made it one of the country's fastest-growing large cities. Population: 784,777. ZIP 98102 covers the northern part of Seattle, about 2 miles from the center of the city.

Investor note: Large market: high deal volume and plenty of comps for pricing.

Max offer when the ARV equals the median price$849,950 × 70% − $68,000 repairs = $526,965 max offer

Also see the full 98102 market report on Realtor.com →Then view 98102 homes on Zillow →

SeattleZIP 98109$564,500Flip & wholesale

Seattle (98109) market snapshot

$564,500 ▲ 2.7%Median listing price
$586Price per sq ft
60 days ▲ 11.1%Days on market
$2,354 ▼ 0.7%Median rent
163 ▲ 5.5%Active listings
5.0%Gross rent yield

In addition, the Zillow Home Value Index is $757,125 (down 2.4% from a year earlier) as of August 2026.

ZIP 98109 covers the northern part of Seattle, about 3 miles from the center of the city.

Investor note: Close to the city center, where older homes and rentals are common, so check rental-registration and code-violation records.

Max offer when the ARV equals the median price$564,500 × 70% − $45,000 repairs = $350,150 max offer

Also see the full 98109 market report on Realtor.com →Then view 98109 homes on Zillow →

SeattleZIP 98121$525,000Negotiate

Seattle (98121) market snapshot

$525,000 ▼ 13.8%Median listing price
$662Price per sq ft
59 daysDays on market
$2,460 ▼ 22.4%Median rent
171 ▼ 9.6%Active listings
5.6%Gross rent yield

In addition, the Zillow Home Value Index is $533,258 (down 6.1% from a year earlier) as of August 2026.

ZIP 98121 covers the central part of Seattle.

Max offer when the ARV equals the median price$525,000 × 70% − $42,000 repairs = $325,500 max offer

Also see the full 98121 market report on Realtor.com →Then view 98121 homes on Zillow →

BurienZIP 98146$648,000Negotiate

Burien (98146) market snapshot

$648,000 ▼ 12.7%Median listing price
$400Price per sq ft
38 days ▼ 17.5%Days on market
$2,250 ▼ 2.2%Median rent
64 ▲ 12.5%Active listings
4.2%Gross rent yield

In addition, the Zillow Home Value Index is $669,691 (down 0.3% from a year earlier) as of August 2026.

Burien is a suburban city in King County, Washington, located south of Seattle on Puget Sound. 3% increase since incorporation in 1993, making it the 25th most populous city in Washington. Population: 52,066.

Max offer when the ARV equals the median price$648,000 × 70% − $52,000 repairs = $401,600 max offer

Also see the full 98146 market report on Realtor.com →Then view 98146 homes on Zillow →

SeattleZIP 98174Wholesale

Seattle (98174) market snapshot

Choose a ZIP code from the menu to see its investing data, then compare markets. Market data: Realtor.com, October 2026, and Zillow Home Value Index, August 2026. Also, gross rent yield is 12 months of median rent divided by the median listing price; the max offer assumes repairs of 8% of the median price.

Antonio Stringfield, ForeclosuresDaily.com customer

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Antonio Stringfield
Probate investor · Los Angeles

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Cash buyers

How do you build your buyers list in King County?

Build your buyers list before you sign your first contract. Your best buyers are cash buyers who can close quickly, such as flippers, landlords, and small builders.

  • First of all, attend local real estate investor meetups.
  • Also, review recent cash sales in county records to find active buyers.
  • Then connect with title companies, hard money lenders, and property managers.
  • Finally, ask every buyer for their buy box: areas, price range, and rehab level.
Contracts

What does assigning contracts mean in Washington?

Assigning contracts means transferring your rights as the buyer under a purchase agreement to another investor. Your contract should allow assignment, and your buyer typically pays your assignment fee at closing.

Wholesaling is legal in most states, but the rules differ. Some states require disclosures or a real estate license for certain activities, so review your contracts with a Washington real estate attorney before you start.

Nancy Wallace-Laab, ForeclosuresDaily.com customer

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Nancy Wallace-Laab
Investor · nearly 20 years

Nancy focuses on the best outcome for both the seller and the investor, drawing on nearly 20 years of real estate investing experience.

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ForeclosuresDaily off-market opportunities before your competition

In fact, since 2004, ForeclosuresDaily.com has helped investors, wholesalers, flippers, and agents reach motivated sellers first.

Not on the MLSHomes for sale privately, before any listing.
Less competitionFewer buyers know the property exists.
Fresh leadsNew records added every day.
NationwideTarget any county or ZIP code.

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Phillip Warrick
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Full-time real estate investor since 2003, with over 20 years of experience.

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More guides

More wholesaling guides in Washington

Compare nearby markets before you choose where to farm. For example, these local guides cover other Washington cities and counties:

Clark County · Pierce County · Snohomish County · Spokane County · Wholesale House Prices Seattle

Also, see Wholesaling Real Estate for Profit for the profit math and guides in every state.

FAQ

Wholesaling questions for King County

How do you wholesale real estate in King County?

First of all, find a motivated seller through probate, pre-foreclosure, or absentee-owner leads. Then sign a contract at a discount, and finally assign it to a cash buyer for a fee.

Is wholesaling legal in Washington?

Wholesaling is legal in most states, but the rules vary. For example, some states require disclosures or a license for certain activities, so have a Washington real estate attorney review your contracts.

How much can you make wholesaling in King County?

Assignment fees vary by deal. For instance, a fee of about 3% on a home priced near the King County median of $849,000 would be roughly $25,000.

Which King County ZIP codes have the lowest entry prices?

Among the ZIP codes in this guide, the lowest median listing prices are in 98121 (Seattle) at $525,000, 98055 (Renton) at $557,450, and 98109 (Seattle) at $564,500, based on Realtor.com data from October 2026.

Where do King County foreclosures come from?

Most start with missed mortgage payments, so pre-foreclosure filings appear months before an auction. As a result, investors who reach owners early can buy before the home is listed.

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