21032 Cornerstone Dr, Walnut, CA 91789
OFF MARKET

21032 Cornerstone Dr
Walnut, CA 91789

  • 4 Beds
  • 3 Baths
  • 1,750 sqft

$952,700

Trulia Estimate
as of Aug 11, 2026
Est. Refi. Payment $5,844/mo*
Refinance Your Home

$952,700

Trulia Estimate
as of Aug 11, 2026
Est. Refi. Payment $5,844/mo*
Refinance Your Home
4 Beds
3 Baths
1,750 sqft

Home Value

Trulia Estimate
$953K
Since last month
Decreased$29K (-2.9%)
Since last year
Decreased$63K (-6.2%)
Since last sale
Increased$241K (+33.8%)
Learn more about this home's value by checking out its Trulia Estimate, the value of nearby homes, and how much similar homes have sold for.

Trulia Estimate

The of this home's value increased by +110% in the last 10 years
MonthEstimated value
2026
August 2026$953K
July 2026$970K
June 2026$981K
May 2026$977K
April 2026$985K
March 2026$1.01M
February 2026$990K
January 2026$968K
2025
2024
2023
2022
2021
2020
2019
2018
2017

Comparable sales

These are recently sold homes that have a similar location or other similar features to this home, like bedrooms, bathrooms, and square footage. Get a sense of the expected prices in the area by viewing these homes.
Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
21010 Cornerstone Dr, Walnut, CA
0.03
Condo
$677,000
03/27/26
4
3
1,830
21002 Cornerstone Dr, Walnut, CA
0.03
Condo
$971,000
04/02/26
4
3
1,800
20956 Cornerstone Dr, Walnut, CA
0.08
Condo
$888,000
10/16/25
4
3
1,760
20916 Jade Dr, Walnut, CA
0.14
Condo
$915,000
09/04/25
4
3.5
1,760
715 Windwood Dr, Diamond Bar, CA
0.80
Condo
$545,000
08/12/25
2
1
882
860 Windwood Dr, Diamond Bar, CA
0.95
Condo
$180,000
09/10/25
3
2
1,136
810 Silver Fir Rd, Diamond Bar, CA
0.85
Condo
$495,000
09/02/25
2
1
878
720 Windwood Dr, Diamond Bar, CA
0.83
Condo
$485,555
06/26/26
2
1
882
607 Alder Ln, Diamond Bar, CA
0.77
Condo
$400,000
08/26/25
2
3
1,368
838 Windwood Dr, Diamond Bar, CA
0.97
Condo
$499,999
11/07/25
2
1
878

Nearby home prices

Get a sense of expected prices in the area by checking the value of nearby homes.
Address
Distance
Price
Bed
Bath
Sqft
Status
159 Sterling Dr, Walnut, CA 91789
0.05
$1,396,500
4
3
2,183
Off Market
155 Blue Crystal Dr, Walnut, CA 91789
0.05
$1,312,800
4
3
2,072
Off Market
21002 Cornerstone Dr, Walnut, CA 91789
0.03
$971,000
4
3
1,800
Recently Sold
20980 Cornerstone Dr, Walnut, CA 91789
0.05
$940,000
3
3.5
1,760
Off Market
20968 Cornerstone Dr, Walnut, CA 91789
0.05
$939,500
3
3.5
1,880
Off Market
151 Redstone Dr, Walnut, CA 91789
0.08
$1,425,300
4
3
2,364
Off Market
159 Redstone Dr, Walnut, CA 91789
0.09
$1,379,500
4
3
2,316
Off Market
20956 Cornerstone Dr, Walnut, CA 91789
0.08
$888,000
3
3.5
1,760
Recently Sold
150 Greenleaf Dr, Walnut, CA 91789
0.09
$1,295,600
5
4
2,364
Off Market
20936 Delphine Dr, Walnut, CA 91789
0.13
$1,138,400
3
2
1,714
Off Market
130 Greenleaf Dr, Walnut, CA 91789
0.10
$1,063,100
4
3.5
1,931
Off Market
139 Seneca Dr, Walnut, CA 91789
0.14
$1,116,600
3
3
1,811
Off Market

Local Information

  • Map ViewExplore the area around 21032 Cornerstone Dr.
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Commute Destination

Home Highlights

Property Type
Condo
Year Built
2018
Living Area
1,750 sqft
Price/Sqft
$544

About this House

This condo is located at 21032 Cornerstone Dr, Walnut, CA. 21032 Cornerstone Dr is in Walnut, CA and in ZIP code 91789. This property has 4 bedrooms, 3 bathrooms and approximately 1,750 sqft of floor space. This property has a lot size of 0.40 acres and was built in 2018.
21032 Cornerstone Dr, Walnut, CA 91789 is a 4 bedroom, 3 bathroom, 1,750 sqft condo built in 2018. It last sold for $712,000 on May 22, 2017. It is currently off market. The Trulia Estimate is $952,700, with a rent estimate of $3,996/month.

Home Details for 21032 Cornerstone Dr

Interior Features

Heating & Cooling
Heating: OtherAir ConditioningCooling System: CentralHeating Fuel: Other

Property Information

Year Built
Year Built: 2018
Property Type / Style
Property Type: Condo

Community

Units in Building: 1

Lot Information

Lot Area: 0.40 acres

Price and Tax history

DateEventPrice
May 22, 2017
Source: N/A
Sold
$712,000

Market trends in Walnut

Last updated June 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
—
Sale-to-List Price
—
Price per sq ft
—
Available listings
75
16MoM
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Around this home

What Locals Say about Walnut

At least 124 Trulia users voted on each feature.

  • 88 % Say there are sidewalks

  • 88 % Say parking is easy

  • 81 % Say car is needed

  • 81 % Say yards are well-kept

  • 80 % Say it's dog friendly

  • 75 % Say it's quiet

  • 72 % Say streets are well-lit

  • 68 % Say people would walk alone at night

  • 63 % Say it's walkable to grocery stores

  • 63 % Say there's holiday spirit

  • 62 % Say there's wildlife

  • 62 % Say they plan to stay for at least 5 years

  • 47 % Say neighbors are friendly

  • 44 % Say it's walkable to restaurants

  • 44 % Say kids play outside

  • 29 % Say there are community events

Sourced by Trulia users. Learn more about our methodology.
  • Nicholas R.
    "Very quiet neighborhood, not too much traffic, friendly neighbors. very nice and clean parks, that are close by. "
    4
    Flag
  • Angie.duran323
    "There’re lots of trails and long sidewalks in neighborhoods you can walk your dogs along. Sometimes all the dogs start barking at random times of day which is the only annoyance but other than that it’s great!"
    3
    Flag
  • T
    "City Walnut is known to have one the the best hiking trail in Southern California for adults, kids and pets"
    5
    Flag
  • Ronald G.
    "Public transportation is not very good. Especially for seniors living in the city. Stores are not really in walking distance and if you carry items, you will need to stop several times before getting home."
    1
    Flag
  • Ronald G.
    "The neighborhood is nice and people a generally nice. Easy to get around to stores and small shopping in the areas. If you want real shopping you have to leave the city."
    3
    Flag
  • sme2101
    "There are many families in our neighborhood, we have great parks, everyone is friendly and it’s a safe town"
    1
    Flag
  • Leslie a.
    "I lived here for about 6 years and I really enjoy the nature feel, the birds singing and the trails to walk on."
    2
    Flag
  • Fermin L.
    "I have lived here for the past 7 years and is a safe quiet neighborhood, great parks and city wide activities for children and adults, lots of trails to walk."
    1
    Flag
  • Needeposit
    "Living in the area for the last 20 years and in the same home for 12 years. Very safe area and one of the best school systems."
    1
    Flag
  • Ray
    "Great walking trails, very good schools and parks."
    1
    Flag

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Homes for sale near 21032 Cornerstone Dr

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Off Market Homes Near 21032 Cornerstone Dr

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Frequently asked questions about 21032 Cornerstone Dr

  • What is 21032 Cornerstone Dr estimated to be worth?
    Trulia's estimated value for 21032 Cornerstone Dr in Walnut, CA is $952,700.
  • What is the price history for 21032 Cornerstone Dr?
    21032 Cornerstone Dr in Walnut, CA last sold for $712,000 in May 2017.
  • Is Walnut a buyer's or seller's market?
    Walnut is currently a seller's market, based on recent for-sale activity.
  • What do residents say about Walnut?
    Residents describe Walnut, CA as pedestrian-friendly, easy to park in, and well-kept. See recently sold homes in Walnut, CA.
  • Does 21032 Cornerstone Dr have air conditioning?
    Yes, 21032 Cornerstone Dr in Walnut, CA has air conditioning.