20942 Cornerstone Dr, Walnut, CA 91789
Property image
Property image
OFF MARKET

20942 Cornerstone Dr
Walnut, CA 91789

  • 3 Beds
  • 4 Baths
  • 1,880 sqft (on 0.40 acres)

$914,500

Trulia Estimate
as of Aug 9, 2026
Est. Refi. Payment $5,593/mo*
Refinance Your Home

$914,500

Trulia Estimate
as of Aug 9, 2026
Est. Refi. Payment $5,593/mo*
Refinance Your Home
3 Beds
4 Baths
1,880 sqft
(on 0.40 acres)

Local Information

  • Map ViewExplore the area around 20942 Cornerstone Dr.
  • Schools1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Property Type
Townhouse
Year Built
2018
Lot Size
0.4 acres
Living Area
1,880 sqft
Price/Sqft
$486

About this House

FULLY UPGRADED TOWNHOUSE IN THE PRIME LOCATION WITH WALKING DISTANCE TO AWARD WINNING WALNUT HIGH SCHOOL. Come and check out the newest townhouse in the local area build by Shea Home in 2018. This spacious townhouse offers 1,880 sqft of open concept living space (per builder) , two en-suite bedrooms on the third floor and one set of main floor bedroom/bathroom. This design provide the perfect setting for bigger family and/or working professional at home who can easily shift the main floor bedroom into an office or for in-laws as needed. The upgrades of the features was a replicate of the model home, with builder upgrades on cabinet, counter tops, and custom build engineer wood flooring and wood shutter thru out the house. Make the appointment to check out the house today!
20942 Cornerstone Dr, Walnut, CA 91789 is a 3 bedroom, 4 bathroom, 1,880 sqft townhouse built in 2018. It last sold for $790,000 on Oct 15, 2021. It is currently off market. The Trulia Estimate is $914,500, with a rent estimate of $4,073/month.

Home Details for 20942 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: Townhouse

Community

Units in Building: 1

Lot Information

Lot Area: 0.40 acres

Price History for 20942 Cornerstone Dr

DatePriceEventSource
10/15/2021$790,000Sold
N/A
09/17/2021$799,000PendingCRMLS #TR21090758
08/13/2021$799,000PriceChange
RE/MAX International #TR21090758
08/06/2021$819,000Listed For SaleRE/MAX International #TR21090758
07/28/2021ListingRemovedRE/MAX International
07/01/2021$819,000PriceChange
RE/MAX International #TR21090758
05/01/2021$829,000Listed For SaleRE/MAX International #TR21090758
05/10/2018$657,000Sold
N/A

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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Property Tax and Assessment

Year2025
Tax$10,484
Assessment$838,352
Home facts updated by county records

Comparable Sales for 20942 Cornerstone Dr

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
20956 Cornerstone Dr, Walnut, CA
0.00
Townhouse
$888,000
10/16/25
3
3.5
1,760
923 Terrace Ln W #1, Diamond Bar, CA
1.84
Townhouse
$1,060,000
03/09/26
3
3
1,809
873 Terrace Ln W #4, Diamond Bar, CA
1.86
Townhouse
$1,350,000
09/04/25
4
4.5
2,420
1253 Porto Grande #2, Diamond Bar, CA
2.01
Townhouse
$798,800
07/14/26
3
3
1,485
1221 Porto Grande #4, Diamond Bar, CA
2.09
Townhouse
$792,000
12/15/25
3
3
1,642
817 Terrace Ln E #7, Diamond Bar, CA
1.90
Townhouse
$1,390,000
07/28/26
4
5
2,430
22966 Estoril Dr #1, Diamond Bar, CA
2.05
Townhouse
$828,800
06/12/26
3
3
1,570
1217 Porto Grande #1, Diamond Bar, CA
2.09
Townhouse
$770,000
01/23/26
3
3
1,642
22905 Colombard Ln #5, Diamond Bar, CA
2.24
Townhouse
$849,000
02/27/26
3
2.5
1,685
3865 Sycamore St, West Covina, CA
2.07
Townhouse
$580,000
03/09/26
3
3
1,269

Nearby homes

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Assigned Schools

These are the assigned schools for 20942 Cornerstone Dr.
View nearby schools on GreatSchools
The GreatSchools Rating compares schools on a variety of school quality indicators including test scores, college readiness, equity and more. Learn more.

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

LGBTQ Local Legal Protections

Apartments for Rent

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Explore by feature - Pet Friendly

10 pet-friendly rentals in Walnut, CA

Explore by feature - Garage

16 rentals with a garage in Walnut, CA

Explore by feature - Air Conditioning

19 rentals with air conditioning in Walnut, CA

Explore by feature - Washer/dryer

10 rentals with a washer/dryer in Walnut, CA

Explore by feature - Outdoor Space

8 rentals with an outdoor space in Walnut, CA

Homes for sale near 20942 Cornerstone Dr

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Off Market Homes Near 20942 Cornerstone Dr

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Frequently asked questions about 20942 Cornerstone Dr

  • What is 20942 Cornerstone Dr estimated to be worth?
    Trulia's estimated value for 20942 Cornerstone Dr in Walnut, CA is $914,500.
  • What is the price history for 20942 Cornerstone Dr?
    20942 Cornerstone Dr in Walnut, CA last sold for $790,000 in October 2021.
  • 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 20942 Cornerstone Dr have air conditioning?
    Yes, 20942 Cornerstone Dr in Walnut, CA has air conditioning.