Google street view image for 20125 Prosa Ct, Walnut, CA 91789

Off market jan 1980 for $110K

$1,017,211

Est. refi paymentEst. refi $739/mo

•

3 ba

•

1,980

sq ft

20125 Prosa Ct, Walnut, CA 91789

About this home

20125 Prosa Ct is a 1,980 square foot house on a 5,202 square foot lot with 4 bedrooms and 3 bathrooms. - it last sold on January 04, 1980 for $110,000. Based on Redfin's Walnut data, we estimate the home's value is $1,017,211.

Single-familyProperty Type

1979Year Built

5,202 sq ftLot Size

$514Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,017,211

$907K since sold in January 1980$11K since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 5.6% lower than the average sale price ($1.08M) of 6 comparable homes.

SOLD SEP 24, 2026
$1,035,000
A
4 beds2.5 baths1,980 sq ft
20111 Divino Dr, Walnut, CA 91789
SOLD AUG 6, 2026
$1,155,000
B
4 beds3 baths1,886 sq ft
20105 Prosa Ct, Walnut, CA 91789
SOLD AUG 12, 2026
$935,000
C
4 beds3 baths1,870 sq ft
1300 Camerons, Rowland Heights, CA 91748
SOLD MAR 19, 2026
$1,048,000
D
4 beds3 baths1,672 sq ft
1551 Walnut Leaf, Walnut, CA 91789
SOLD MAY 13, 2026
$1,250,000
E
4 beds3 baths2,150 sq ft
20899 Starshine, Walnut, CA 91789
SOLD AUG 18, 2026
$1,040,000
F
4 beds3 baths1,954 sq ft
19721 Katrine Cir, Walnut, CA 91789
ReMax 2000 Realty

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Earn from this home

Sell

$961,018

Est. take-home

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Est. cash available

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Rent

$3,966/mo

Redfin rental estimate

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Market trends in 91789, CA

Last updated October 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

98.3%

0.5% MoM

Median sale price

$1.2M

$21K MoM

Avg. days on market

40d

1 days MoM

Recently sold homes

2 MoM

New listings for sale

NEW 12 HRS AGO
$1,198,000
4 beds2.5 baths2,140 sq ft
1371 Point Loma, Walnut, CA 91789
RE/MAX 2000 REALTY
$2,800,000
6 beds5 baths6,623 sq ft
20401 Blue Mountain Dr, Walnut, CA 91789
$1,490,000
5 beds3 baths2,984 sq ft
1264 S Lemon Ave, Walnut, CA 91789
OPEN SAT, 10:30AM TO 12:30PM
$739,000
3 beds2.5 baths1,697 sq ft
1135 Loxley Pl, Walnut, CA 91789
$1,388,888
4 beds3 baths2,668 sq ft
2630 Pointer, Walnut, CA 91789
OPEN TODAY, 12PM TO 3PM
$1,550,000
4 beds3 baths1,874 sq ft
322 La Tortola, Walnut, CA 91789
$1,268,000
6 beds3 baths3,000 sq ft
20548 Missionary Rdg, Walnut, CA 91789
$1,450,000
4 beds2 baths2,053 sq ft
20092 Wildcat Canyon Rd, Walnut, CA 91789
Century 21 Masters
$1,488,888
4 beds2 baths2,053 sq ft
20859 E Yellow Feather Cir, Walnut, CA 91789
$1,588,000
4 beds3.5 baths2,473 sq ft
19935 Camino De Rosa, Walnut, CA 91789
See all

Provided by Redfin

Sale history for 20125 Prosa Ct

Year

Property tax

Land + Additions

Assessment*

2025

$3,641 (+7.5%)

$67,922 + $181,178

$249,100

2024

$3,386 (+3.2%)

$66,591 + $177,626

$244,217

2023

$3,281 (+2.3%)

$65,286 + $174,144

$239,430

2022

$3,206 (+2.0%)

$64,006 + $170,730

$234,736

2021

$3,142 (+1.3%)

$62,751 + $167,383

$230,134

2020

$3,102 (+1.7%)

$61,521 + $164,101

$225,622

2019

$3,049 (+4.7%)

$60,891 + $162,419

$223,310

2018

$2,911 (+2.1%)

$59,698 + $159,235

$218,933

2017

$2,851 (+2.5%)

$57,381 + $153,052

$210,433

2016

$2,781 (+1.6%)

$57,381 + $153,052

$210,433

2015

$2,737 (+0.1%)

$56,256 + $150,051

$206,307

2014

$2,734 (+5.4%)

$54,326 + $144,903

$199,229

2012

$2,593 (+3.1%)

$54,081 + $144,249

$198,330

2011

$2,516 (+2.2%)

$53,021 + $141,421

$194,442

2010

$2,461 (+1.3%)

$51,982 + $138,649

$190,631

2009

$2,428 (+2.6%)

$51,594 + $137,613

$189,207

2008

$2,366

$51,717 + $137,940

$189,657

Tax history for 20125 Prosa Ct

Year

Property tax

Land + Additions

Assessment*

2025

$3,641 (+7.5%)

$67,922 + $181,178

$249,100

2024

$3,386 (+3.2%)

$66,591 + $177,626

$244,217

2023

$3,281 (+2.3%)

$65,286 + $174,144

$239,430

2022

$3,206 (+2.0%)

$64,006 + $170,730

$234,736

2021

$3,142 (+1.3%)

$62,751 + $167,383

$230,134

2020

$3,102 (+1.7%)

$61,521 + $164,101

$225,622

2019

$3,049 (+4.7%)

$60,891 + $162,419

$223,310

2018

$2,911 (+2.1%)

$59,698 + $159,235

$218,933

2017

$2,851 (+2.5%)

$57,381 + $153,052

$210,433

2016

$2,781 (+1.6%)

$57,381 + $153,052

$210,433

2015

$2,737 (+0.1%)

$56,256 + $150,051

$206,307

2014

$2,734 (+5.4%)

$54,326 + $144,903

$199,229

2012

$2,593 (+3.1%)

$54,081 + $144,249

$198,330

2011

$2,516 (+2.2%)

$53,021 + $141,421

$194,442

2010

$2,461 (+1.3%)

$51,982 + $138,649

$190,631

2009

$2,428 (+2.6%)

$51,594 + $137,613

$189,207

2008

$2,366

$51,717 + $137,940

$189,657

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

Permits

Jul 3, 2025 • Final

Mechanical permit (simple) - county

Replace supply ducts in a residential building.

HVAC

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

Interior

Heating & Cooling
Air Conditioning Type: Central
Heating Type: Central

Exterior

View Information
View: Good

Property Information
Subdivision Name: 31844
Living Sq. Ft: 1,980
# of Units: 1
Legal Description: TR=31844 LOT 17

Lot Information
# of Buildings: 1
Land Sq. Ft: 5,202
Legal Lot Number: 17
Acres: 0.1194
Zoning Code: LCRPD500015U*
County Use Description: SINGLE FAMILY RESID

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 4
Baths: 3.0
Sq. Ft.: 1,980
Stories: —
Lot Size: 5,202 square feet
Style: Single Family Residential
Year Built: 1979
Year Renovated: 1979
County: Los Angeles County
APN: 8762025017

Home facts updated by county records on Oct 7, 2026

Around this home

Schools

K - 12
Preschool & daycare

Ybarra Academy For The Arts And Technology

Public K-8 • Assigned • 0.5mi

8/10

John A. Rowland High School

Public 9-12 • Assigned • 1.3mi

8/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

The Los Angeles County market is becoming more balanced, giving buyers a little more room to negotiate while well-priced homes can still attract strong interest. With homes taking longer to sell and buyers becoming more selective, pricing and...
2 weeks ago • Los Angeles County
Sang Ur
Redfin Premier agent
124 deals
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Climate risks

1/10 Flood Factor

Minimal risk 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 99° expected this year, 20 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

7/10 Air Factor

13 unhealthy days expected this year, 14 days in 30 years

Provided by First Street

Historical weather

Walnut, CA • 91789

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

$967,000 – $1.17M

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Home values near 20125 Prosa Ct

Data from public records.

Address	Redfin Estimate
20130 Prosa Court, Walnut, CA 4 Beds \| 3 Baths \| 1886 Sq. Ft.	$1,054,967
20105 Prosa Court, Walnut, CA 4 Beds \| 3 Baths \| 1886 Sq. Ft.	$1,282,633
1111 Tierra Luna, Walnut, CA 4 Beds \| 3 Baths \| 1980 Sq. Ft.	$1,103,673
20128 Iluso Avenue, Walnut, CA 4 Beds \| - Baths \| 1886 Sq. Ft.	$1,103,869
1010 Tierra Luna, Walnut, CA 4 Beds \| 3 Baths \| 1980 Sq. Ft.	$1,027,609
1044 Tierra Luna, Walnut, CA 4 Beds \| 3 Baths \| 1980 Sq. Ft.	$1,041,864
1070 Tierra Luna, Walnut, CA 4 Beds \| 3 Baths \| 1886 Sq. Ft.	$1,031,157

Address	Redfin Estimate
20120 Prosa Court, Walnut, CA 5 Beds \| 3 Baths \| 2124 Sq. Ft.	$1,065,013
20115 Prosa Court, Walnut, CA 3 Beds \| 2 Baths \| 1432 Sq. Ft.	$955,797
1103 Tierra Luna, Walnut, CA 4 Beds \| - Baths \| 1886 Sq. Ft.	$1,048,595
20110 Iluso Avenue, Walnut, CA 3 Beds \| 2 Baths \| 1432 Sq. Ft.	$943,967
1022 Tierra Luna, Walnut, CA 3 Beds \| 2 Baths \| 1432 Sq. Ft.	$852,130
1050 Tierra Luna, Walnut, CA 5 Beds \| 3 Baths \| 2280 Sq. Ft.	$1,149,036
1088 Tierra Luna, Walnut, CA 4 Beds \| 3 Baths \| 1980 Sq. Ft.	$1,042,790

Address	Redfin Estimate
20110 Prosa Court, Walnut, CA 4 Beds \| 2.5 Baths \| 1886 Sq. Ft.	$1,057,361
20135 Prosa Court, Walnut, CA 3 Beds \| 2 Baths \| 1432 Sq. Ft.	$868,889
20134 Iluso Avenue, Walnut, CA 4 Beds \| 3 Baths \| 1980 Sq. Ft.	$1,077,586
20101 Iluso Avenue, Walnut, CA 4 Beds \| 3 Baths \| 1886 Sq. Ft.	$1,098,281
1030 Tierra Luna, Walnut, CA 4 Beds \| 3 Baths \| 1886 Sq. Ft.	$1,042,851
1060 Tierra Luna, Walnut, CA 3 Beds \| 2 Baths \| 1432 Sq. Ft.	$997,450
1077 Tierra Luna, Walnut, CA 3 Beds \| - Baths \| 1432 Sq. Ft.	$982,438

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About this home

Redfin Estimate

Earn from this home

Market trends in 91789, CA

Sale history for 20125 Prosa Ct

Tax history for 20125 Prosa Ct

Permits

Property details

Around this home

Schools

Lifestyle

Local insights from Redfin agents

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 91789

Home values near 20125 Prosa Ct

More real estate resources