OFF MARKET

Off market aug 2017 for $545K

$746,024

•

1,740

sq ft

4430 Windsweep Rd, Bethel Island, CA 94511

About this home

BEAUTIFUL WATERFRONT HOME LIKE NEW CONDITION, ALL THE EXTRAS YOU CAN IMAGINE INCLUDING AN ELEVATOR AND A DUMB WAITER TOO MUCH TO LIST YOU HAVE TO SEE THIS ONE. CLOSE TO FAST WATER, GREAT NEIGHBORS, QUIET AREA, BOAT BERTH. ALL IN SUPER GREAT CONDITION. ALL ELECTRIC HOME. LOTS OF EXTRA SPACE PANORAMIC VIEWS OF THE WATERWAY AND MT. DIABLO. LARGE GARAGE 30X30 = 900 SQUARE FEET, SALE ALSO INCLUDES THE LAND UNDER THE WATER 030-030-034

Single-familyProperty Type

1980Year Built

8,100 sq ftLot Size

$429Est. Price/Sq.Ft.

2 car garageParking

Listed by Ralph Wallace •DRE #00494346 • Boyd Real Estate, Inc.

Bought with Dee Wollaston •DRE #00883734 • Boyd Real Estate, Inc.

Redfin checked: a minute ago

•Source:bridgeMLS, Bay East AOR, or Contra Costa AOR #40780608

Redfin Estimate

$746,024

$201K since sold in August 2017$10K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 7.3% higher than the average sale price ($695K) of 6 comparable homes.

BOUGHT WITH REDFIN JUL 17, 2026
$450,000
A
3 beds2 baths1,500 sq ft
4123 Willow Rd, Bethel Island, CA 94511
SOLD APR 30, 2026
$735,000
B
4 beds2 baths2,112 sq ft
4370 Sandmound Blvd, Oakley, CA 94561
SOLD AUG 26, 2026
$740,000
C
3 beds3 baths1,722 sq ft
4170 Sandmound Blvd, Oakley, CA 94561
SOLD JUN 18, 2026
$851,000
D
3 beds3 baths2,100 sq ft
5014 Sandmound Blvd, Oakley, CA 94561
SOLD AUG 25, 2026
$780,000
E
2 beds2 baths1,248 sq ft
4221 Willow Rd, Bethel Island, CA 94511
SOLD MAR 12, 2026
$615,000
F
4 beds2 baths1,680 sq ft
240 Harborage Ct, Oakley, CA 94561

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Earn from this home

Sell

$354,380

Est. take-home

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Rent

$2,987/mo

Redfin rental estimate

List your home for rent

Market trends in Bethel Island, CA

Last updated September 2026

Buyer's Market

Seller's Market

Buyer's market

Sale-to-List Price

101.1%

+3.6% MoM

Median sale price

$780K

$190K MoM

Avg. days on market

56d

0 days MoM

Recently sold homes

0 MoM

New listings for sale

$169,000
4 beds2 baths1,320 sq ft
216 Fairway Dr, Bethel Island, CA 94511
PMZ Real Estate, PMZ Real Estate
$999,990
3 beds3 baths2,005 sq ft
16 Grey Whale Pl, Bethel Island, CA 94511
$95,000
2 beds1 bath625 sq ft
3505 Gateway Rd Unit A43, Bethel Island, CA 94511
See all

Provided by Redfin

Sale history for 4430 Windsweep Rd

Date

Event

Price

bridgeMLS, Bay East AOR, or Contra Costa AOR #40780608

Aug 24, 2017

Sold

$545,000

$313/sq ft

Jul 18, 2017

Pending

—

May 9, 2017

Listed

$565,000

$325/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$7,893 (+1.8%)

$185,691 + $445,662

$631,353

2024

$7,757 (+1.3%)

$182,050 + $436,924

$618,974

2023

$7,660 (+0.9%)

$178,481 + $428,357

$606,838

2022

$7,592 (+1.5%)

$174,982 + $419,958

$594,940

2021

$7,481 (+1.1%)

$171,551 + $411,724

$583,275

2020

$7,404 (+2.7%)

$168,188 + $403,651

$571,839

2019

$7,210 (+2.8%)

$166,464 + $399,513

$565,977

2018

$7,011 (+75.9%)

$163,200 + $391,680

$554,880

2017

$3,987 (+5.4%)

$103,523 + $169,527

$273,050

2016

$3,782 (−0.5%)

$103,523 + $169,527

$273,050

2015

$3,801 (+4.2%)

$101,494 + $166,203

$267,697

2014

$3,647 (+0.9%)

$98,012 + $160,501

$258,513

2013

$3,616 (+1.6%)

$98,012 + $160,501

$258,513

2012

$3,558 (+2.1%)

$97,570 + $159,776

$257,346

2011

$3,486 (+1.5%)

$95,657 + $156,644

$252,301

2010

$3,435 (+1.0%)

$93,782 + $153,573

$247,355

2009

$3,401 (+5.1%)

$93,082 + $152,426

$245,508

2008

$3,237

$93,304 + $152,789

$246,093

Tax history for 4430 Windsweep Rd

Year

Property tax

Land + Additions

Assessment*

2025

$7,893 (+1.8%)

$185,691 + $445,662

$631,353

2024

$7,757 (+1.3%)

$182,050 + $436,924

$618,974

2023

$7,660 (+0.9%)

$178,481 + $428,357

$606,838

2022

$7,592 (+1.5%)

$174,982 + $419,958

$594,940

2021

$7,481 (+1.1%)

$171,551 + $411,724

$583,275

2020

$7,404 (+2.7%)

$168,188 + $403,651

$571,839

2019

$7,210 (+2.8%)

$166,464 + $399,513

$565,977

2018

$7,011 (+75.9%)

$163,200 + $391,680

$554,880

2017

$3,987 (+5.4%)

$103,523 + $169,527

$273,050

2016

$3,782 (−0.5%)

$103,523 + $169,527

$273,050

2015

$3,801 (+4.2%)

$101,494 + $166,203

$267,697

2014

$3,647 (+0.9%)

$98,012 + $160,501

$258,513

2013

$3,616 (+1.6%)

$98,012 + $160,501

$258,513

2012

$3,558 (+2.1%)

$97,570 + $159,776

$257,346

2011

$3,486 (+1.5%)

$95,657 + $156,644

$252,301

2010

$3,435 (+1.0%)

$93,782 + $153,573

$247,355

2009

$3,401 (+5.1%)

$93,082 + $152,426

$245,508

2008

$3,237

$93,304 + $152,789

$246,093

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Public record

Public record
Permits

Beds

Baths

Stories

Lot width

—

Lot depth

—

Lot size

8,100 Sq. Ft.

Year renovated

2000

Sq. Ft.

1,740

Year built

1980

Style

Single Family Residential

County

Contra Costa County

APN

0300300035

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Oct 9, 2026.

Jun 27, 2023 • Final

Building - residential solar photovoltaic

Install a roof-mounted photovoltaic system with a load center and main circuit breaker in a subpanel. Relocate the load center and disconnect beside the existing main service panel on the second floor.

Electrical

Solar

Nov 8, 2019 • Final

Building/residential/al/alteration

Remodel the kitchen, hallway bathroom, master bathroom, and laundry room. Install recessed lighting, a new pellet stove, new windows, and an exterior door. Create a new exterior framed opening according to the plans.

Bathroom

Electrical

Plumbing

Remodel

Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.

Property details

Parking

Parking Information
Has Attached Garage
Garage Spaces: 2
Covered Spaces: 2
Parking Features: Attached, Off Street, RV/Boat Parking, Enclosed, Garage Door Opener

Interior

Bathroom Information
# of Bathrooms Total: 2
# of Bathrooms Full: 2
Other Bathrooms Included Features: Shower Over Tub, Solid Surface, Tile
Primary Bathroom Included Features: Solid Surface, Stall Shower

Interior Features
Interior Features: Bonus/Plus Room, Breakfast Bar, Tile Counters
Appliances: Dishwasher, Electric Range, Disposal, Microwave, Oven, Range, Refrigerator, Self Cleaning Oven, Dryer, Washer, Electric Water Heater
Accessibility Features: Accessible Elevator Installed
Laundry Features: Dryer, Laundry Room, Washer
Upper Level Features: 2 Bedrooms, 2 Baths
Street Level Features: 2 Bedrooms, 1 Bath
Window Features: Window Coverings
Fireplaces Total: 1
Has Fireplace
Flooring: Vinyl, Carpet

Room Information
Kitchen Features: Breakfast Bar,Counter - Tile,Dishwasher,Electric Range/Cooktop,Garbage Disposal,Microwave,Oven Built-in,Range/Oven Built-in,Refrigerator,Self-Cleaning Oven
Rooms Total: 8
Fireplace Features: Living Room, Pellet Stove

Exterior

Building Information
Construction Materials: Wood Siding
Building Area Total: 1,740
Builder Name: CUSTOM

Exterior Features
Patio And Porch Features: Deck
Exterior Features: Dock, Front Yard, Garden/Play, Sprinklers Automatic, Sprinklers Back, Storage
Fencing: Fenced
Roof: Shingle

Mobile Home Information
Model: DELTA

Property Information
Living Area: 1740
Living Area Units: Square Feet
Property Type: Residential
Property Sub Type: Single Family Residence
Year Built: 1980

Lot Information
Lot Size Square Feet: 8100
Lot Size Area: 0.19
Lot Size Units: Acres
Lot Size Acres: 0.19
Lot Features: Level, Premium Lot
Waterfront
Waterfront Features: River Front

Utilities

Utility Information
Water Source: Public
Sewer: Public Sewer

Heating & Cooling
Has Heating
Heating: Zoned
Cooling: Ceiling Fan(s), Zoned

Location

Homeowners Association Information
Pets Allowed: Yes

Public facts

Beds: 4
Baths: 2.0
Sq. Ft.: 1,740
Stories: 1.0
Lot Size: 8,100 square feet
Style: Single Family Residential
Year Built: 1980
Year Renovated: 2000
County: Contra Costa County
APN: 0300300035

Home facts updated by county records on Oct 9, 2026

Around this home

Schools

Summer Lake Elementary

Public K-5 • Assigned • 2.2mi

5/10

Delta Vista Middle School

Public 6-8 • Assigned • 4.4mi

2/10

Freedom High School

Public 9-12 • Assigned • 6.5mi

5/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

9/10 Flood Factor

Estimated 80%+ chance of a flood reaching the building in the next 30 years

2/10 Fire Factor

0.00% chance of being in a wildfire in next 30 years

6/10 Heat Factor

7 days above 101° expected this year, 14 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

10/10 Air Factor

21 unhealthy days expected this year, 23 days in 30 years

Provided by First Street

Historical weather

Bethel Island, CA • 94511

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 12.8 hours in June and 4.6 hours in December, placing it above the U.S. average for solar exposure.

12.8 hrs

4.6 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$709,000 – $858,000

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Listing provided by Zillow

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New listings for sale in 94511

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Home values near 4430 Windsweep Rd

Data from public records.

Address	Redfin Estimate
4456 Windsweep Road, Bethel Island, CA 2 Beds \| 2 Baths \| 992 Sq. Ft.	$566,521
4394 Windsweep Road, Bethel Island, CA 2 Beds \| 2 Baths \| 1226 Sq. Ft.	$538,262

Address	Redfin Estimate
4444 Windsweep Road, Bethel Island, CA 1 Beds \| 1 Baths \| 998 Sq. Ft.	$522,187
4400 Windsweep Road, Bethel Island, CA 2 Beds \| 2 Baths \| 1027 Sq. Ft.	$632,900

Address	Redfin Estimate
4410 Windsweep Road, Bethel Island, CA 2 Beds \| 2 Baths \| 1152 Sq. Ft.	$671,618
4418 Windsweep Road, Bethel Island, CA 5 Beds \| 2.5 Baths \| 2236 Sq. Ft.	$820,766

Property information provided by bridgeMLS, Bay East AOR, or Contra Costa AOR when last listed in 2017. This data may not match . Learn more.

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in Bethel Island, CA

Sale history for 4430 Windsweep Rd

Tax history for 4430 Windsweep Rd

Public record

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 94511

Home values near 4430 Windsweep Rd

More real estate resources