21204 Fountain Springs Rd, Diamond Bar, CA 91765

Off market dec 2020 for $706K

$941,680

Est. refi paymentEst. refi $4,842/mo

•

1,300

sq ft

21204 Fountain Springs Rd, Diamond Bar, CA 91765

About this home

Single-familyProperty Type

1962Year Built

8,264 sq ftLot Size

$724Est. Price/Sq.Ft.

2 car garageParking

Listed by Chandra Kusmanto •DRE #01714745 • Exp Realty of California Inc

Bought with Lin Li •DRE #01913634 • KW Vision

Redfin checked: a minute ago

•Source:CRMLS #TR20242906

Redfin Estimate

$941,680

$235K since sold in December 2020$23K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 2.4% higher 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 JUL 16, 2026
$958,600
D
3 beds2 baths1,372 sq ft
2127 Evergreen Springs Dr, Diamond Bar, CA 91765
Keller Williams Premier Prop
SOLD FEB 26, 2026
$880,000
E
3 beds2 baths1,280 sq ft
2632 Castle Rock, Diamond Bar, CA 91765
SOLD NOV 6, 2025
$900,000
F
3 beds2 baths1,300 sq ft
21223 Fountain Spgs, Diamond Bar, CA 91765

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Earn from this home

Sell

$388,577

Est. take-home

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Refinance

Est. cash available

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Rent

$3,203/mo

Redfin rental estimate

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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

100

5 MoM

New listings for sale

NEW 26 HRS AGO
$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
$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
$979,900
4 beds2 baths1,600 sq ft
239 N Palo Cedro, Diamond Bar, CA 91765
See all

Provided by Redfin

Sale history for 21204 Fountain Springs Rd

Year

Property tax

Land + Additions

Assessment*

2025

$9,721 (+4.3%)

$580,745 + $199,727

$780,472

2024

$9,319 (+2.4%)

$569,358 + $195,811

$765,169

2023

$9,096 (+2.1%)

$558,195 + $191,972

$750,167

2022

$8,908 (+1.8%)

$547,250 + $188,208

$735,458

2021

$8,748 (+148.6%)

$536,520 + $184,518

$721,038

2020

$3,519 (+1.8%)

$526,000 + $180,900

$706,900

2019

$3,455 (+6.1%)

$149,581 + $103,813

$253,394

2018

$3,256 (+4.5%)

$146,649 + $101,778

$248,427

2017

$3,114 (+3.1%)

$140,955 + $97,827

$238,782

2016

$3,020 (−0.5%)

$140,955 + $97,827

$238,782

2015

$3,036 (−0.3%)

$138,192 + $95,909

$234,101

2014

$3,044 (+1.3%)

$133,451 + $92,619

$226,070

2012

$3,004 (+2.9%)

$132,848 + $92,201

$225,049

2011

$2,919 (+0.9%)

$130,244 + $90,394

$220,638

2010

$2,894 (+0.6%)

$127,691 + $88,622

$216,313

2009

$2,875 (+3.0%)

$126,737 + $87,960

$214,697

2008

$2,792

$127,039 + $88,169

$215,208

Tax history for 21204 Fountain Springs Rd

Year

Property tax

Land + Additions

Assessment*

2025

$9,721 (+4.3%)

$580,745 + $199,727

$780,472

2024

$9,319 (+2.4%)

$569,358 + $195,811

$765,169

2023

$9,096 (+2.1%)

$558,195 + $191,972

$750,167

2022

$8,908 (+1.8%)

$547,250 + $188,208

$735,458

2021

$8,748 (+148.6%)

$536,520 + $184,518

$721,038

2020

$3,519 (+1.8%)

$526,000 + $180,900

$706,900

2019

$3,455 (+6.1%)

$149,581 + $103,813

$253,394

2018

$3,256 (+4.5%)

$146,649 + $101,778

$248,427

2017

$3,114 (+3.1%)

$140,955 + $97,827

$238,782

2016

$3,020 (−0.5%)

$140,955 + $97,827

$238,782

2015

$3,036 (−0.3%)

$138,192 + $95,909

$234,101

2014

$3,044 (+1.3%)

$133,451 + $92,619

$226,070

2012

$3,004 (+2.9%)

$132,848 + $92,201

$225,049

2011

$2,919 (+0.9%)

$130,244 + $90,394

$220,638

2010

$2,894 (+0.6%)

$127,691 + $88,622

$216,313

2009

$2,875 (+3.0%)

$126,737 + $87,960

$214,697

2008

$2,792

$127,039 + $88,169

$215,208

*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

8,266 Sq. Ft.

Year renovated

1962

Sq. Ft.

1,300

Year built

1962

Style

Single Family Residential

County

Los Angeles County

APN

8285015001

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
# of Garage Spaces: 2
Direct Garage Access
Has Parking
# of Parking Spaces: 2

Interior

Laundry Information
Has Laundry
Individual Room, Inside

Bathroom Information
# of Baths (Full): 2

Cooling Information
Central
Has Cooling

Room Information
Family Room, Kitchen, Main Floor Bedroom, Main Floor Primary Bedroom, Primary Bathroom, Primary Bedroom

Fireplace Information
Family Room
Has Fireplace

Heating Information
Central Furnace
Has Heating

Interior Features
Levels: One
Main Level Bathrooms: 2
Main Level Bedrooms: 3

Exterior

Exterior Information
Structure Type: House

Exterior Features
Pool Features: None

Lot Information
Elevation Units: Feet
Lot Size Source: Assessor's Data
Lot Features: Back Yard

Property Information
Total # of Units: 1
Common Walls: 1 common wall
Parcel Number: 8285015001
Attached Property
Total # of Stories: 1
Has View
Year Built Source: Assessor

Financial

Assesments Information
Assessments: Unknown

Utilities

Utilities Information
Sewer: Public Sewer
Water Source: District/Public

Location

Neighborhood Information
Community Features: Sidewalks, Street Lighting

School Information
High School: Diamond Bar
High School District: Walnut Valley Unified
High School 2: DIABAR

Location Information
Latitude: 33.97871300
Longitude: -117.84072300
Directions: Exit 57 - Go East on Pathfinder - Turn Right on S Brea Canyon Rd
Zoning: LCR171/2

Public facts

Beds: 3
Baths: 2.0
Sq. Ft.: 1,300
Stories: —
Lot Size: 8,266 square feet
Style: Single Family Residential
Year Built: 1962
Year Renovated: 1962
County: Los Angeles County
APN: 8285015001

Home facts updated by county records on Oct 6, 2026

Other

Listing Information
Days Active in MLS: 3
Continuous Days Active in MLS: 3

Listing Agent Information
List Agent First Name: Chandra
List Agent Last Name: Kusmanto

Listing Office Information
List Office Name: Exp Realty of California Inc

Selling Agent Information
Buyer Agent First Name: Lin
Buyer Agent Last Name: Li

Selling Office Information
Buyer Office Name: KW Vision

Around this home

Schools

Evergreen Elementary School

Public K-5 • Assigned • 0.4mi

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

$895,000 – $1.08M

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COMING SOON

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Home values near 21204 Fountain Springs Rd

Data from public records.

Address	Redfin Estimate
21237 Fountain Springs Road, Diamond Bar, CA 3 Beds \| 2 Baths \| 1300 Sq. Ft.	$857,294
21217 Fountain Springs Road, Diamond Bar, CA 4 Beds \| 2 Baths \| 1475 Sq. Ft.	$865,886

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

Address	Redfin Estimate
21223 Fountain Springs Road, Diamond Bar, CA 3 Beds \| 2 Baths \| 1300 Sq. Ft.	$1,002,463
21212 Fountain Springs Road, Diamond Bar, CA 4 Beds \| 2 Baths \| 1856 Sq. Ft.	$886,506

Property information provided by CRMLS when last listed in 2020. 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 91765, CA

Sale history for 21204 Fountain Springs Rd

Tax history for 21204 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 21204 Fountain Springs Rd

More real estate resources