Wholesaling Real Estate in Contra Costa County, California
Also, wholesaling gives you a realistic way into Contra Costa County real estate even if you are short on capital.
In addition, timing shapes every Contra Costa County wholesale deal, because most California foreclosures are trustee sales handled outside court, and a contract signed before the auction date leaves room to bring in a buyer.
In general, the work is simple to describe: find a discounted house from Concord to El Sobrante, sign a purchase contract and hand that contract to a cash buyer who wants it.
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Contra Costa County, California housing market at a glance
Market data: Realtor.com Contra Costa County housing market, October 2026. Zillow Home Value Index for Contra Costa County: $771,709 (down 1.1% from a year earlier), August 2026. View homes on Zillow.
What makes Contra Costa County worth wholesaling?
With a signed contract and a modest earnest money deposit, you control an East Bay house without a mortgage. Overall, the cash buyer who takes over your contract pays for repairs and runs the crew, and many assignments wrap up in a few weeks.
Also, county ZIP codes cover places as different as Black Hawk, Bethel Island, Clayton and Concord, and inherited homes, tired rentals and pre-foreclosures turn up in every one of them.
In addition, a county this populous produces probate cases, divorce filings and recorded default notices throughout the year. Investors who follow those Contra Costa County records and contact owners early tend to find the best off-market deals.
How Contra Costa County wholesaling works
Contra Costa County assignments generally follow these stages, from the first lead to the fee paid through escrow:
- Find a distressed property
In general, assemble lists of Contra Costa County owners with a reason to sell, such as heirs, landlords who want out or borrowers with a recorded Notice of Default. - Run the numbers
So, estimate the after-repair value (ARV) from recent sales close to the property, since your offer is built on that figure. - Sign a purchase contract
So, Negotiate a price that leaves profit for the end buyer and still covers your fee. - Find a cash buyer
Overall, take the contract to a flipper, landlord or other cash buyer on your East Bay list. - Assign the contract
So, assign your contract rights to that buyer with a written agreement and collect your fee. - Collect your fee
Generally, escrow typically releases your assignment fee when the sale closes.
Motivated sellers who want to liquidate fast
For this reason, ForeclosuresDaily.com’s off-market real estate platform covers every major distress signal in Contra Costa County, cross-referenced with tax rolls and property appraiser records.
Pricing a wholesale offer in Contra Costa County
Also, every Contra Costa County offer begins with the ARV, the home's value after repairs.
Under the 70% Rule, your buyer pays no more than 70% of ARV after subtracting repairs. In addition, your fee also has to fit inside that ceiling, so your contract price ends up lower again.
Wholesale offer example
| Step | Amount |
|---|---|
| ARV | $751,750 |
| 70% of ARV − repairs ($60,000) | $466,225 |
| Your assignment fee | − $23,000 |
| Your contract price |
Contra Costa County ZIP codes worth tracking
So, start with these Contra Costa County ZIP codes. Then, reach further once you learn where your buyers like to purchase. Then, open a ZIP to see its numbers.
ZIP 94506 · Black Hawk · $2,100,000 · Negotiate
Market snapshot: Black Hawk (94506)
| Metric | Value |
|---|---|
| Median listing price | $2,100,000 ▼ 13.7% |
| Price per sq ft | $715 |
| Days on market | 32 days ▼ 29.4% |
| Median rent | $6,450 ▲ 13.7% |
| Active listings | 87 ▲ 32.9% |
| Gross rent yield | 3.7% |
Black Hawk (94506) has a Zillow Home Value Index of $1,994,728 as of August 2026, down 2% from a year earlier.
In general, ZIP 94506 is part of Danville, CA.
Investor note: At these Black Hawk prices, most deals come from probate, pre-foreclosure and absentee-owner leads in 94506 rather than from listings.
Max offer when the ARV equals the median price: $2,100,000 × 70% − $168,000 repairs = $1,302,000 max offer
ZIP 94511 · Bethel Island · $1,099,000 · Flip
Market snapshot: Bethel Island (94511)
| Metric | Value |
|---|---|
| Median listing price | $1,099,000 ▲ 10.1% |
| Price per sq ft | $459 |
| Days on market | 78 days ▼ 36.3% |
| Median rent | n/a |
| Active listings | 57 ▼ 8.6% |
| Gross rent yield | n/a |
Bethel Island (94511) posted a Zillow Home Value Index of $630,850 for August 2026, 1.1% below a year before.
Overall, Bethel Island is an island in the Sacramento–San Joaquin River Delta of Contra Costa County, California, approximately 10 kilometres east of Antioch.
Generally, the community of Bethel Island is governed as a Special Act District created by the California State legislature and named the Bethel Island Municipal Improvement District. Also, it is a popular destination for recreation seekers, especially hunters, fishermen, boaters, and bird watchers.
Investor note: Bethel Island sits in the Delta, so waterfront and water-access homes can carry a premium. Check flood zones and compare ARV carefully on every 94511 deal.
Max offer when the ARV equals the median price: $1,099,000 × 70% − $88,000 repairs = $681,300 max offer
ZIP 94517 · Clayton · $1,149,000 · Negotiate
Market snapshot: Clayton (94517)
| Metric | Value |
|---|---|
| Median listing price | $1,149,000 ▲ 12.3% |
| Price per sq ft | $497 |
| Days on market | 38 days ▲ 18.8% |
| Median rent | n/a |
| Active listings | 60 ▲ 39.6% |
| Gross rent yield | n/a |
Clayton (94517) shows a Zillow Home Value Index of $1,033,575 as of August 2026, up 1% from the prior year.
Clayton is a city in Contra Costa County, California. Population: 11,585 (2020 census).
Investor note: Clayton is its own incorporated city, so check its code-violation, vacant-property and rental-registration lists. Older 94517 houses that need updating can suit fix-and-flip buyers.
Max offer when the ARV equals the median price: $1,149,000 × 70% − $92,000 repairs = $712,300 max offer
ZIP 94521 · Concord · $754,450 · Negotiate
Market snapshot: Concord (94521)
| Metric | Value |
|---|---|
| Median listing price | $754,450 ▼ 3.7% |
| Price per sq ft | $455 |
| Days on market | 37 days ▼ 7.9% |
| Median rent | $3,447 ▲ 25.4% |
| Active listings | 106 ▲ 13.8% |
| Gross rent yield | 5.5% |
Concord (94521) logged a Zillow Home Value Index of $777,029 in August 2026, up 0.2% year over year.
Also, Concord is the most populous city in Contra Costa County, California. In addition, founded in 1869 as Todos Santos by Don Salvio Pacheco II, a noted Californio ranchero, the name was later changed to Concord. In general, the city is a major regional suburban East Bay center within the San Francisco Bay Area, and is 29 miles east of San Francisco. Population: 123,261.
Investor note: Concord is a commuter suburb, and steady owner-occupant demand in 94521 supports retail resales and quick assignments.
Max offer when the ARV equals the median price: $754,450 × 70% − $60,000 repairs = $468,115 max offer
ZIP 94526 · Danville · $1,846,800 · Flip
Market snapshot: Danville (94526)
| Metric | Value |
|---|---|
| Median listing price | $1,846,800 ▲ 2% |
| Price per sq ft | $818 |
| Days on market | 31 days ▼ 17.9% |
| Median rent | $4,447 ▼ 0.1% |
| Active listings | 98 ▼ 3.5% |
| Gross rent yield | 2.9% |
Danville (94526) carries a Zillow Home Value Index of $1,711,810 for August 2026, a 0.7% rise over the year.
Overall, Danville is located in the San Ramon Valley in Contra Costa County, California. Also, it is one of the incorporated municipalities in California that use "town" in their names instead of "city".
Generally, the Iron Horse Regional Trail runs through Danville. Also, it was first a railroad that has been converted to a 10-foot-wide path that consists of biking and hiking trails as well as controlled intersections. Population: 43,582 (2020 census).
Max offer when the ARV equals the median price: $1,846,800 × 70% − $148,000 repairs = $1,144,760 max offer
ZIP 94553 · Pacheco · $764,000 · Wholesale
Market snapshot: Pacheco (94553)
| Metric | Value |
|---|---|
| Median listing price | $764,000 ▼ 2.2% |
| Price per sq ft | $484 |
| Days on market | 36 days ▼ 15.6% |
| Median rent | $3,000 ▼ 14.2% |
| Active listings | 124 ▼ 13% |
| Gross rent yield | 4.7% |
Pacheco (94553) recorded a Zillow Home Value Index of $753,472 as of August 2026, down 1.7% from a year earlier.
Pacheco is a census-designated place in Contra Costa County, California. Also, it is bounded by Martinez to the north and west, Concord to the east, and Pleasant Hill to the south. Population: 4,183 (2020 census).
Investor note: Pacheco is unincorporated, so Contra Costa County handles its permits, liens and code enforcement; pull 94553 records from the county.
Max offer when the ARV equals the median price: $764,000 × 70% − $61,000 repairs = $473,800 max offer
ZIP 94563 · Orinda · $1,899,000 · Negotiate
Market snapshot: Orinda (94563)
| Metric | Value |
|---|---|
| Median listing price | $1,899,000 ▼ 7.3% |
| Price per sq ft | $742 |
| Days on market | 30 days ▼ 42.3% |
| Median rent | $6,495 ▲ 10.6% |
| Active listings | 69 ▼ 20.9% |
| Gross rent yield | 4.1% |
Orinda (94563) reached a Zillow Home Value Index of $1,930,356 in August 2026, 2% higher than a year before.
Orinda is a city in Contra Costa County, California.
Max offer when the ARV equals the median price: $1,899,000 × 70% − $152,000 repairs = $1,177,300 max offer
ZIP 94569 · Port Costa · Wholesale
Market snapshot: Port Costa (94569)
Port Costa (94569) shows a Zillow Home Value Index of $661,743 for August 2026, up 1.3% from last year.
Port Costa is a small town and census-designated place in Contra Costa County, California, located in the East Bay region of the San Francisco Bay Area. Population: 190.
Investor note: Port Costa has many older buildings, so check any historic-district rules before planning exterior work on a 94569 property.
ZIP 94596 · Walnut Creek · $680,000 · Negotiate
Market snapshot: Walnut Creek (94596)
| Metric | Value |
|---|---|
| Median listing price | $680,000 ▼ 19.1% |
| Price per sq ft | $622 |
| Days on market | 39 days ▼ 7.1% |
| Median rent | $2,700 ▲ 2.9% |
| Active listings | 54 ▼ 31.1% |
| Gross rent yield | 4.8% |
Walnut Creek (94596) has a Zillow Home Value Index of $1,068,728 as of August 2026, up 1.9% over twelve months.
Walnut Creek is a city in Contra Costa County, California, located in the East Bay region of the San Francisco Bay Area, approximately 16 miles east of the city of Oakland and 25 miles east of San Francisco. Also, the city shares its borders with Clayton, Lafayette, Alamo, Pleasant Hill and Concord. Population: 70,127.
Max offer when the ARV equals the median price: $680,000 × 70% − $54,000 repairs = $422,000 max offer
ZIP 94803 · El Sobrante · $735,000 · Wholesale
Market snapshot: El Sobrante (94803)
| Metric | Value |
|---|---|
| Median listing price | $735,000 ▼ 1.5% |
| Price per sq ft | $430 |
| Days on market | 31 days ▼ 14.6% |
| Median rent | $3,025 ▼ 0.2% |
| Active listings | 64 ▲ 8.8% |
| Gross rent yield | 4.9% |
El Sobrante (94803) posted a Zillow Home Value Index of $725,741 for August 2026, a 1.4% dip from the prior year.
El Sobrante is a census-designated place in Contra Costa County, California. Population: 15,524 (2020 census).
Max offer when the ARV equals the median price: $735,000 × 70% − $59,000 repairs = $455,500 max offer
Also, gross rent yield is 12 months of median rent over the median listing price, and the max offer sets repairs at 8% of the median price.
Lining up cash buyers in Contra Costa County
So, build your Contra Costa County buyers list before the first contract. The buyers who matter most pay cash and close quickly, such as flippers, rental investors and small builders.
California rules on assigning a contract
Overall, California does not ban assignments, but buying from an owner-occupant in foreclosure triggers extra contract rules and cancellation rights. Then, have a California real estate attorney review your paperwork before your first Contra Costa County deal.
ForeclosuresDaily off-market opportunities before your competition
Contra Costa County at a glance
Generally, California foreclosures are usually nonjudicial trustee sales.
Also, the trustee records a notice of default, waits at least three months. Then, gives at least 20 days’ notice of sale, and there is no right to buy the home back after a trustee sale. For Contra Costa County wholesalers, the weeks before the sale are usually the best time to make an offer.
What changed recently: Since January 1, 2025, a California home with one to four units can’t be sold at its first trustee sale for less than 67% of its fair market value. If no bid reaches that amount, the sale is postponed at least 7 days. An owner who gives the trustee a signed listing agreement with a licensed real estate broker at least 5 business days before the sale can also postpone it once, by 45 days (AB 2424).
Sources: U.S. Census Bureau QuickFacts, Contra Costa County, California (2020 to 2024 American Community Survey; population estimate for July 1, 2025) and state foreclosure law summary.
In fact, since 2004, ForeclosuresDaily.com has helped investors, wholesalers, flippers, and agents reach motivated sellers first.
Contra Costa County wholesaling FAQ
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Contra Costa County wholesale leads, ready today
In addition, fresh off-market data for Black Hawk, Bethel Island, Clayton and the rest of Contra Costa County.