21230 Fountain Springs Rd, Diamond Bar, CA 91765

Local rules require you to be signed in to see more photos.

Off market jun 2009 for $386K

$849,792

Est. refi paymentEst. refi $2,652/mo

•

1,300

sq ft

21230 Fountain Springs Rd, Diamond Bar, CA 91765

About this home

* * BACK ON THE MARKET * * Charming single story home in a very desirable neighborhood of Diamond Bar. Walnut school district. Stunning fireplace in the living room, ideal for entertaining. Floorplan is open, bright and airy. The home has upgraded ceramic tile throughout. French doors. New paint inside and outside, repaired sprinkler system with new sod. Several new windows. New photos coming shortly.

Single-familyProperty Type

1962Year Built

7,690 sq ftLot Size

$654Est. Price/Sq.Ft.

2 spacesParking

Listed by Goran Forss •DRE #01711806 • Team Forss Realty Group

Bought with OUT OF AREA TEM BRD •DRE #0 • Src Non-mls

Redfin checked: 3 minutes ago

•Source:CRMLS #T09040492

Redfin Estimate

$849,792

$464K since sold in June 2009$7,000 since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 7.6% lower than the average sale price ($920K) of 6 comparable homes.

SOLD SEP 17, 2026
$930,000
A
3 beds2 baths1,300 sq ft
2726 Castle Rock, Diamond Bar, CA 91765
SOLD JUL 31, 2026
$875,000
B
3 beds2 baths1,300 sq ft
21245 Cold Spg, Diamond Bar, CA 91765
SOLD JUL 31, 2026
$975,000
C
3 beds2 baths1,300 sq ft
2606 Castle Rock Rd, Diamond Bar, CA 91765
Synergy Real Estate
SOLD FEB 26, 2026
$880,000
D
3 beds2 baths1,280 sq ft
2632 Castle Rock, Diamond Bar, CA 91765
SOLD JUL 16, 2026
$958,600
E
3 beds2 baths1,372 sq ft
2127 Evergreen Springs Dr, Diamond Bar, CA 91765
Keller Williams Premier Prop
SOLD NOV 6, 2025
$900,000
F
3 beds2 baths1,300 sq ft
21223 Fountain Spgs, Diamond Bar, CA 91765

Claim this home to receive a free report every month with insights on the changing estimate.

Earn from this home

Sell

$627,664

Est. take-home

List your home with Redfin and save $4,249

Refinance

Est. cash available

Get cash now or lower your monthly rate

Rent

$3,347/mo

Redfin rental estimate

List your home for rent

Market trends in 91765, CA

Last updated September 2026

Buyer's Market

Seller's Market

Balanced market

Sale-to-List Price

98.5%

0.6% MoM

Median sale price

$1.1M

$10K MoM

Avg. days on market

43d

1 days MoM

Recently sold homes

8 MoM

New listings for sale

OPEN TODAY, 4PM TO 6PM
$948,000
3 beds3 baths1,552 sq ft
24271 Seagreen Dr, Diamond Bar, CA 91765
K.W. EXECUTIVE
$4,000,000
6 beds5 baths5,797 sq ft
1809 Diamond Knl, Diamond Bar, CA 91765
$1,480,000
5 beds3 baths2,447 sq ft
1667 Cypress Grove Ln, Diamond Bar, CA 91765
$1,170,000
4 beds2.5 baths2,154 sq ft
1029 Twin Cyn, Diamond Bar, CA 91765
FOR SALE BY OWNER
$1,200,000
3 beds2 baths1,339 sq ft
512 Armitos Pl, Diamond Bar, CA 91765
COMING SOON
$899,000
3 beds2 baths1,274 sq ft
22922 Dry Crk, Diamond Bar, CA 91765
OPEN SAT, 2PM TO 5PM
$1,499,900
5 beds3 baths3,203 sq ft
24215 Delta Dr, Diamond Bar, CA 91765
$468,000
2 beds2.5 baths1,056 sq ft
22871 Hilton Head Dr #230, Diamond Bar, CA 91765
OPEN SAT, 11AM TO 3PM
$1,363,000
4 beds5 baths2,430 sq ft
883 Terrace W, Pomona, CA 91765
$1,050,000
4 beds2 baths1,859 sq ft
23547 Decorah, Diamond Bar, CA 91765
See all

Provided by Redfin

Sale history for 21230 Fountain Springs Rd

Date

Event

Price

Public Records

Jun 15, 2009

Sold

$387,000

$298/sq ft

CRMLS #T09040492

Jun 18, 2009

Listing Removed

—

Jun 16, 2009

Sold

$386,000

$297/sq ft

May 18, 2009

Contingent

—

May 14, 2009

Relisted

—

May 9, 2009

Contingent

—

May 5, 2009

Relisted

—

May 1, 2009

Listing Removed

—

Apr 30, 2009

Relisted

—

Apr 21, 2009

Contingent

—

Apr 15, 2009

Listing Removed

—

Apr 8, 2009

Listed

$410,000

$315/sq ft

CRMLS #Z600068

Apr 27, 2006

Sold

$555,000

$427/sq ft

Jan 5, 2006

Listed

$559,000

$430/sq ft

CRMLS #P485845

Apr 25, 2006

Sold

$555,000

$427/sq ft

Dec 12, 2005

Listed

$559,000

$430/sq ft

CHARMING SINGLE STORY HOME IN A DESIRABLE NEIGHBORHOOD OF DIAMOND BAR W/ WALNUT SCHOOL DISTRICT, LOVELY FIREPLACE IN LIV/ROOM, BEAUTIFUL PERMITED SUN-ROOM CURRENTLY USED AS A FAMILY ROOM GREAT FOR ENTERTAINING, NICE AND OPEN FLOOR PLAN BRIGHT AND AIRY, UPGRADED BATHROOM, CERAMIC TILE IN KITCHEN AND DINNING AREA, FRENCH DOORS, MAKE THIS ONE A MUST SEE. .AND THANK YOU FOR SHOWING. .please note that sun-room is not included in square footage.

CRMLS #P253699

Oct 1, 2001

Sold

$239,000

$184/sq ft

Aug 4, 2001

Listed

$239,000

$184/sq ft

Public Records

Jun 24, 1988

Sold

$115,000

$88/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$6,493 (+4.8%)

$352,279 + $155,905

$508,184

2024

$6,197 (+2.4%)

$345,372 + $152,849

$498,221

2023

$6,051 (+2.2%)

$338,600 + $149,852

$488,452

2022

$5,923 (+1.9%)

$331,961 + $146,914

$478,875

2021

$5,812 (+1.3%)

$325,452 + $144,034

$469,486

2020

$5,739 (+1.9%)

$319,071 + $141,210

$460,281

2019

$5,630 (+4.7%)

$315,800 + $139,763

$455,563

2018

$5,376 (+4.8%)

$309,608 + $137,023

$446,631

2017

$5,132 (+3.0%)

$297,587 + $131,703

$429,290

2016

$4,983 (−0.6%)

$297,587 + $131,703

$429,290

2015

$5,011 (−0.1%)

$291,752 + $129,121

$420,873

2014

$5,017 (+1.2%)

$281,741 + $124,691

$406,432

2012

$4,957 (+3.0%)

$280,468 + $124,128

$404,596

2011

$4,815 (+13.0%)

$274,969 + $121,695

$396,664

2010

$4,260 (−21.9%)

$269,578 + $119,309

$388,887

2009

$5,457 (+0.9%)

$236,000 + $105,000

$341,000

2008

$5,409

$352,600 + $88,100

$440,700

Tax history for 21230 Fountain Springs Rd

Year

Property tax

Land + Additions

Assessment*

2025

$6,493 (+4.8%)

$352,279 + $155,905

$508,184

2024

$6,197 (+2.4%)

$345,372 + $152,849

$498,221

2023

$6,051 (+2.2%)

$338,600 + $149,852

$488,452

2022

$5,923 (+1.9%)

$331,961 + $146,914

$478,875

2021

$5,812 (+1.3%)

$325,452 + $144,034

$469,486

2020

$5,739 (+1.9%)

$319,071 + $141,210

$460,281

2019

$5,630 (+4.7%)

$315,800 + $139,763

$455,563

2018

$5,376 (+4.8%)

$309,608 + $137,023

$446,631

2017

$5,132 (+3.0%)

$297,587 + $131,703

$429,290

2016

$4,983 (−0.6%)

$297,587 + $131,703

$429,290

2015

$5,011 (−0.1%)

$291,752 + $129,121

$420,873

2014

$5,017 (+1.2%)

$281,741 + $124,691

$406,432

2012

$4,957 (+3.0%)

$280,468 + $124,128

$404,596

2011

$4,815 (+13.0%)

$274,969 + $121,695

$396,664

2010

$4,260 (−21.9%)

$269,578 + $119,309

$388,887

2009

$5,457 (+0.9%)

$236,000 + $105,000

$341,000

2008

$5,409

$352,600 + $88,100

$440,700

*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
Zoning

Beds

Baths

Stories

—

Lot width

—

Lot depth

—

Lot size

7,979 Sq. Ft.

Year renovated

1962

Sq. Ft.

1,300

Year built

1962

Style

Single Family Residential

County

Los Angeles County

APN

8285015004

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Oct 6, 2026.

RLM

Low/Medium Density Residential District

The RLM zoning district is intended primarily for existing subdivided areas developed with detached single-family dwellings. The maximum allowed density for new residential subdivisions within this zoning district will be five dwellings per gross acre. The RLM zoning district is consistent with the low density residential land use category of the general plan.

Permitted uses

Include but are not limited to:

Housing-Single unit
Housing-Senior
Housing-Other
Infrastructure
Fire house
Police station
Park & open space

Property details

Parking

Parking / Garage Information
Attached Garage
Direct Garage Access
Has Parking
# of Parking Spaces: 2

Interior

Laundry Information
Has Laundry
Individual Room

Kitchen Information
Appliances: Dishwasher, Microwave, Range
Has Appliances
Breakfast Nook

Bathroom Information
# of Baths (Full): 2

Cooling Information
Electric
Has Cooling

Room Information
Entry, Family Room, Living Room, Primary Bedroom, Utility Room

Fireplace Information
Family Room
Has Fireplace

Flooring Information
Tile

Heating Information
See Remarks
Has Heating

Interior Features
French Doors
Levels: One

Exterior

Exterior Information
Fencing: Vinyl
Has Fence

Exterior Features
Patio And Porch Features: Porch
Has Patio
Pool Features: None
Has Sprinklers

Lot Information
Lot Size Source: Assessor's Data
Lot Features: Lawn, Sprinklers In Front, Sprinklers Timer, Sprinkler System, Yard

Property Information
Living Area Source: Assessor's Data
Parcel Number: 8285015004

Financial

Assesments Information
Assessments: Unknown

Utilities

Utilities Information
Electric: 220V In Laundry
Water Source: District/Public

Location

Neighborhood Information
Community Features: Sidewalks

Location Information
Latitude: 33.97880500
Longitude: -117.83979400

Public facts

Beds: 3
Baths: 2.0
Sq. Ft.: 1,300
Stories: —
Lot Size: 7,979 square feet
Style: Single Family Residential
Year Built: 1962
Year Renovated: 1962
County: Los Angeles County
APN: 8285015004

Home facts updated by county records on Oct 6, 2026

Other

Listing Information
Days Active in MLS: 59
Continuous Days Active in MLS: 59

Listing Agent Information
List Agent First Name: Goran
List Agent Last Name: Forss

Listing Office Information
List Office Name: Allison James Estates & Homes

Selling Agent Information
Buyer Agent First Name: OUT OF AREA
Buyer Agent Last Name: TEM BRD

Selling Office Information
Buyer Office Name: Src Non-mls

Around this home

Schools

Evergreen Elementary School

Public K-5 • Assigned • 0.3mi

9/10

Chaparral Middle School

Public 6-8 • Assigned • 1.7mi

10/10

Diamond Bar High School

Public 9-12 • Assigned • 0.2mi

10/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

5/10 Fire Factor

3% chance of being in a wildfire in next 30 years

6/10 Heat Factor

7 days above 98° expected this year, 21 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

6/10 Air Factor

10 unhealthy days expected this year, 13 days in 30 years

Provided by First Street

Historical weather

Diamond Bar, CA • 91765

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 9.5 hours in June and 6.9 hours in December, placing it above the U.S. average for solar exposure.

9.5 hrs

6.9 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$808,000 – $978,000

Reach more buyers when you sell with Redfin. Save up to $8,498 in fees. 3 minutes to get started.

Need the cash from your home fast? Sell to .

Nearby similar homes

OPEN SAT, 1PM TO 4PM

$1,600,000

4 beds2 baths2,208 sq ft

1528 S Gold Cyn, Walnut, CA 91789

$5,380,000

6 beds7 baths9,038 sq ft

2828 Water Course Dr, Diamond Bar, CA 91765

$1,118,000

4 beds3 baths1,714 sq ft

1118 Clorinda, Walnut, CA 91789

Koinos Real Estate Group

$1,399,998

5 beds3 baths3,073 sq ft

21380 Chirping Sparrow Rd, Diamond Bar, CA 91765

LISTED BY REDFIN3D & VIDEO TOUR

$4,980,000

7 beds7.5 baths7,660 sq ft

2611 Steeplechase Ln, Diamond Bar, CA 91765

$1,258,880

4 beds2.5 baths1,813 sq ft

21725 Lost Riv, Diamond Bar, CA 91765

New listings for sale in 91765

OPEN TODAY, 4PM TO 6PM

$948,000

3 beds3 baths1,552 sq ft

24271 Seagreen Dr, Diamond Bar, CA 91765

K.W. EXECUTIVE

$4,000,000

6 beds5 baths5,797 sq ft

1809 Diamond Knl, Diamond Bar, CA 91765

$1,480,000

5 beds3 baths2,447 sq ft

1667 Cypress Grove Ln, Diamond Bar, CA 91765

$1,170,000

4 beds2.5 baths2,154 sq ft

1029 Twin Cyn, Diamond Bar, CA 91765

FOR SALE BY OWNER

$1,200,000

3 beds2 baths1,339 sq ft

512 Armitos Pl, Diamond Bar, CA 91765

COMING SOON

$899,000

3 beds2 baths1,274 sq ft

22922 Dry Crk, Diamond Bar, CA 91765

OPEN SAT, 2PM TO 5PM

$1,499,900

5 beds3 baths3,203 sq ft

24215 Delta Dr, Diamond Bar, CA 91765

$468,000

2 beds2.5 baths1,056 sq ft

22871 Hilton Head Dr #230, Diamond Bar, CA 91765

OPEN SAT, 11AM TO 3PM

$1,363,000

4 beds5 baths2,430 sq ft

883 Terrace W, Pomona, CA 91765

Home values near 21230 Fountain Springs Rd

Data from public records.

Address	Redfin Estimate
21237 Fountain Springs Rd, Diamond Bar, CA 3 Beds \| 2 Baths \| 1300 Sq. Ft.	$857,294
21217 Fountain Springs Rd, Diamond Bar, CA 4 Beds \| 2 Baths \| 1475 Sq. Ft.	$893,270

Address	Redfin Estimate
21231 Fountain Springs Rd, Diamond Bar, CA 4 Beds \| 2 Baths \| 1576 Sq. Ft.	$1,052,359
21209 Fountain Springs Rd, Diamond Bar, CA 3 Beds \| 2 Baths \| 1280 Sq. Ft.	$848,922

Address	Redfin Estimate
21223 Fountain Springs Rd, Diamond Bar, CA 3 Beds \| 2 Baths \| 1300 Sq. Ft.	$1,002,463
21313 Fountain Springs Rd, Diamond Bar, CA 4 Beds \| - Baths \| 1376 Sq. Ft.	$955,452

Property information provided by CRMLS when last listed in 2009. This data may not match . Learn more.

Download the Redfin App on the Apple App Store

Download the Redfin App from the Google Play Store

Join us

Become an Agent

Get referrals

Careers

Find homes faster

About us

Find us

Subsidiaries

Affiliated Business

Countries

United States

Canada

Updated September 2025: By searching, you agree to the Terms of Use, and Privacy Policy.

Do not sell or share my personal information.

REDFIN and all REDFIN variants, WALK SCORE, and the R logos, are trademarks of Redfin Corporation, registered or pending in the USPTO.

California DRE #01521930

Redfin is licensed to do business in New York as Redfin Real Estate. NY Standard Operating Procedures

New Mexico Real Estate Licenses

TREC: Info About Brokerage Services, Consumer Protection Notice

All mortgage lending products and information are provided by Rocket Mortgage, LLC | NMLS #3030; www.NMLSConsumerAccess.org. Licensed in 50 states. This site is not authorized by the New York State Department of Financial Services for mortgage solicitation or loan applications activities related to properties located in the State of New York.

Redfin Corporation is an affiliated business of Rocket Limited Partnership. Each company, and their subsidiaries, are separate legal entities operated and managed through its own management and governance structures.

If you are using a screen reader, or having trouble reading this website, please call Redfin Customer Support for help at 1-844-759-7732.

REDFIN IS COMMITTED TO AND ABIDES BY THE FAIR HOUSING ACT AND EQUAL OPPORTUNITY ACT. READ REDFIN'S FAIR HOUSING POLICY AND THE NEW YORK STATE FAIR HOUSING NOTICE.

GreatSchools Ratings provided by GreatSchools.org.

91709 homes for sale
91765 homes for sale
91789 homes for sale
91766 homes for sale
91768 homes for sale

Houses for rent in Diamond Bar	Agents near me	Irvine, CA homes for sale	Diamond Bar Housing Market
Houses for sale near me	San Diego, CA homes for sale	Fremont, CA homes for sale
Land for sale near me	San Francisco, CA homes for sale	Sacramento, CA homes for sale
Open Houses near me	Los Angeles, CA homes for sale	Diamond Bar Property Records
Condos for sale near me	San Jose, CA homes for sale	CA New Listings

Irvine homes for sale
Pasadena homes for sale
Long Beach homes for sale

About this home

Redfin Estimate

Earn from this home

Market trends in 91765, CA

Sale history for 21230 Fountain Springs Rd

Tax history for 21230 Fountain Springs Rd

Public record

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 91765

Home values near 21230 Fountain Springs Rd

More real estate resources