NOT LISTED FOR SALE

4522 Rock Island Dr Antioch, CA 94509

Deer Valley Neighborhood

Estimated Value: $620,000 - $663,000

4 Beds
2.5 Baths
2,279 Sq Ft
$284/Sq Ft Est. Value

Sale Details

Date Sold: October 20, 2025

Last sale price $625,000 $274 Per Sq Ft

Est. 4% increase in value since last sale

Current estimated payment $3,821 / mo

59 Days on Market

Highlights

  • Contemporary Architecture
  • No HOA
  • Forced Air Heating and Cooling System
  • Wood Flooring
  • 2 Car Attached Garage
  • East Facing Home

About This Home

As of October 2025

Welcome to 4522 Rock Island Dr, Antioch, CA! This beautiful 4-bedroom, 2.5-bath home offers comfort, space, and modern updates in a desirable neighborhood. Step inside to fresh interior paint, new carpet and laminate flooring, creating a clean and inviting atmosphere. The open-concept kitchen and family room that opens up to backyard are perfect for entertaining or everyday living, offering great natural light and flow. Enjoy the fully landscaped backyard, complete with a handy storage shed—ideal for gardening tools, hobbies, or extra storage. This move-in-ready home is a perfect blend of functionality and charm. Don't miss the opportunity to make this gem your own!

Last Agent to Sell the Property

DEBORAH DIAZ

Best Property Mgmt., Inc. License #01956703 Listed on: 07/07/2025

Last Buyer's Agent

Wilhelmina Boyd

License #01925532

Home Details

Home Type

  • Single Family

Year Built

  • Built in 1996

Lot Details

  • 5,430 Sq Ft Lot
  • East Facing Home

Parking

  • 2 Car Attached Garage
  • Garage Door Opener

Home Design

  • Contemporary Architecture
  • Tile Roof
  • Stucco

Interior Spaces

  • 2-Story Property
  • Family Room with Fireplace

Kitchen

  • Microwave
  • Plumbed For Ice Maker

Flooring

  • Wood
  • Carpet
  • Laminate
  • Tile

Bedrooms and Bathrooms

  • 4 Bedrooms

Utilities

  • Forced Air Heating and Cooling System
  • Gas Water Heater

Community Details

  • No Home Owners Association
  • Antioch Subdivision

Listing and Financial Details

  • Assessor Parcel Number 0551300874

Home Details

Home Type

Single Family

Year Built

Built in 1996

Lot Details

5,430 Sq Ft Lot

Parking

2

Listing Details

  • Stories: 2
  • Year Built: 1996
  • Property Sub Type: Detached
  • Prop. Type: Residential
  • Subdivision Name: Antioch
  • Directions: Deer Valley to Asilomar to Rock Island
  • Architectural Style: Contemporary
  • Garage Yn: Yes
  • Unit Levels: Two Story
  • New Construction: No
  • Special Features: None

Interior Features

  • Flooring: Hardwood, Laminate, Tile, Carpet
  • Appliances: Plumbed For Ice Maker, Microwave, Gas Water Heater
  • Full Bathrooms: 2
  • Total Bedrooms: 4
  • Fireplace Features: Family Room
  • Fireplaces: 1
  • Fireplace: Yes
  • Window Features: Window Coverings
  • Room Kitchen Features: Stone Counters, Ice Maker Hookup, Kitchen Island, Microwave

Exterior Features

  • Roof: Tile
  • Lot Features: Rectangular Lot, Sprinklers In Rear
  • Pool Features: None
  • Pool Private: No
  • Construction Type: Stucco
  • Direction Faces: East
  • Property Condition: Existing

Garage/Parking

  • Garage Spaces: 2
  • Parking Features: Attached, Garage Door Opener

Utilities

  • Heating: Forced Air
  • Cooling: Ceiling Fan(s), Central Air
  • Laundry Features: Laundry Room
  • Cooling Y N: Yes
  • Heating Yn: Yes
  • Electric: No Solar
  • Water Source: Public

Condo/Co-op/Association

  • Association: No

Lot Info

  • Lot Size Sq Ft: 5430
  • Parcel Number: 0551300874

Ownership History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Name Owned For Owner Type

Purchase Details

Listed on
Jul 7, 2025
Closed on
Sep 29, 2025
Sold by
Bought by
Seller's Agent
DEBORAH DIAZ
Best Property Mgmt., Inc.
Buyer's Agent
Wilhelmina Boyd
List Price
$659,000
Sold Price
$625,000
Premium/Discount to List
-$34,000
-5.16%
Views
51
Current Estimated Value
$647,660

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Estimated Appreciation
$22,660
Avg. Annual Appreciation
6.01%

Purchase Details

Closed on
Sep 19, 2011
Sold by
Bought by

Purchase Details

Closed on
Jul 17, 2000
Sold by
Bought by

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$221,600
Interest Rate
8.19%
Mortgage Type
Purchase Money Mortgage

Purchase Details

Closed on
Apr 26, 1999
Sold by
Bought by

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$206,150
Interest Rate
7.12%
Mortgage Type
Purchase Money Mortgage

Purchase Details

Closed on
Jul 25, 1996
Sold by
Bought by

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$160,500
Interest Rate
8.32%
Mortgage Type
Purchase Money Mortgage
Source: Public Records

Range of Values:

--
Value Increase
--
Percent Increase
--
Adjusted for Inflation
Collateral Analytics

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Average Value
Not Available
List Price
Sold Price
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Home Values in the Area

Source: Public Records

Average Home Value in this Area

Source: Public Records

Purchase History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Buyer Sale Price Title Company
$625,000 Fidelity National Title Compan
$243,000 Fidelity National Title
$277,000 American Title Co
$217,000 Fidelity National Title Co
$169,000 First American Title Guarant
Source: Public Records

Mortgage History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Status Borrower Loan Amount
Previous Owner $221,600
Previous Owner $206,150
Previous Owner $160,500
Closed $27,700
Source: Public Records

Property History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Event Price List to Sale Price per Sq Ft
10/20/2025 10/20/25 Sold $625,000 -5.2% $274 / Sq Ft
09/04/2025 09/04/25 Pending -- -- --
07/07/2025 07/07/25 For Sale $659,000 -- $289 / Sq Ft
Source: bridgeMLS

Tax History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Year Tax Paid Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. Land Improvement
2025 $3,916 $305,210 $62,796 $242,414
2024 $3,681 $299,226 $61,565 $237,661
2023 $3,681 $293,359 $60,358 $233,001
2022 $3,628 $287,608 $59,175 $228,433
2021 $3,521 $281,969 $58,015 $223,954
2019 $3,435 $273,608 $56,296 $217,312
2018 $3,309 $268,244 $55,193 $213,051
2017 $3,239 $262,985 $54,111 $208,874
2016 $3,156 $257,829 $53,050 $204,779
2015 $3,434 $253,958 $52,254 $201,704
2014 $4,152 $248,984 $51,231 $197,753
Source: Public Records

Agents Affiliated with this Home

  • D

    Seller's Agent in 2025

    DEBORAH DIAZ

    Best Property Mgmt., Inc.

    (925) 382-5298

    1 in this area

    6 Total Sales

    DEBORAH DIAZ
    Section Image
  • Wilhelmina Boyd

    Buyer's Agent in 2025

    Wilhelmina Boyd

    (510) 673-9257

    1 in this area

    4 Total Sales

    Wilhelmina Boyd
    Section Image
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Map

Source: bridgeMLS

MLS Number: 41103799

bridgeMLS

APN: 055-130-087-4

California Contra Costa County Antioch 94509 Deer Valley

4522 Rock Island Dr, Antioch, CA

Disclaimer: Certain information contained herein is derived from information provided by parties other than Homes.com. All information provided is deemed reliable, but is not guaranteed to be accurate and should be independently verified.

bridgeMLS Bay East 2026. CCAR 2026. bridgeMLS 2026. Information Deemed Reliable But Not Guaranteed. This information is being provided by the Bay East MLS, or CCAR MLS, or bridgeMLS. The listings presented here may or may not be listed by the Broker/Agent operating this website. This information is intended for the personal use of consumers and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

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