20940 Cornerstone Dr, Walnut, CA 91789
OFF MARKET

20940 Cornerstone Dr
Walnut, CA 91789

  • 4 Beds
  • 4 Baths
  • 1,958 sqft
4 Beds
4 Baths
1,958 sqft

Local Information

  • Map ViewExplore the area around 20940 Cornerstone Dr.
  • Schools1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Property Type
Apartment
Year Built
2018
Living Area
1,958 sqft
Parking
Garage

About this House

built in 2018, walnut school district
20940 Cornerstone Dr, Walnut, CA 91789 is a 4 bedroom, 4 bathroom, 1,958 sqft apartment built in 2018. It last sold for $730,000 on May 22, 2018. More recently, it was listed as a rental in November 2020 with an asking price of $3,200 per month. That rental listing was removed on November 8, 2020. It is currently off market. The Trulia Estimate rent is $4,140/month.

Home Details for 20940 Cornerstone Dr

Interior Features

Heating & Cooling
Heating: Forced AirCooling System: OtherHeating Fuel: Forced Air
Interior Details
Types of Rooms: Walk In Closet, Family Room
Appliances & Utilities
DryerWasher

Property Information

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

Exterior Features

Parking & Garage
GarageParking Spaces: 2Parking: Garage Detached

Price History for 20940 Cornerstone Dr

DatePriceEventSource
11/08/2020$3,200ListingRemovedAgent Provided
11/02/2020$3,200Listed For RentAgent Provided
06/03/2018$3,000ListingRemovedAgent Provided
05/30/2018$3,000PriceChange
Agent Provided
05/22/2018$730,000Sold
N/A
05/22/2018$3,100Listed For RentAgent Provided

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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Comparable Sales for 20940 Cornerstone Dr

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
20122 Candleflame Ct, Walnut, CA
2.28
Multi-Family Home
$1,588,168
01/09/26
1
1
300
23617 Golden Springs Dr #K-1, Diamond Bar, CA
2.33
Apartment
$310,000
10/22/25
1
1
768
23601 Golden Springs Dr #A-10, Diamond Bar, CA
2.33
Apartment
$331,000
07/07/26
2
2
949
23665 Golden Springs Dr #E-2, Diamond Bar, CA
2.33
Apartment
$320,000
08/29/25
2
2
949
1104 Cleghorn Dr #F, Diamond Bar, CA
2.58
Apartment
$638,500
06/17/26
2
1.5
1,048
2350 S Diamond Bar Blvd #L, Diamond Bar, CA
2.74
Apartment
$520,000
07/22/26
2
2
916
1521 Rose Ct, West Covina, CA
3.91
Apartment
$679,000
05/27/26
3
3
1,442
2145 E Aroma Dr #88, West Covina, CA
3.77
Apartment
$400,000
02/05/26
2
1
968
524 S Astell Ave, West Covina, CA
5.23
Apartment
$1,260,000
12/05/25
3
2
1,202
1431 Eagle Park Rd #133, Hacienda Heights, CA
5.52
Apartment
$560,000
06/16/26
3
2
1,098
Home facts updated by county records

Nearby homes

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Assigned Schools

These are the assigned schools for 20940 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

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Apartments for Rent

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Explore by feature - Pet Friendly

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Explore by feature - Air Conditioning

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Explore by feature - Outdoor Space

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Homes for sale near 20940 Cornerstone Dr

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Off Market Homes Near 20940 Cornerstone Dr

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Frequently asked questions about 20940 Cornerstone Dr

  • What is the price history for 20940 Cornerstone Dr?
    20940 Cornerstone Dr in Walnut, CA last sold for $730,000 in May 2018.
  • 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.
  • What are the closest schools to 20940 Cornerstone Dr?
    The closest schools to 20940 Cornerstone Dr in Walnut, CA are Suzanne Middle School (rated 10/10), Vejar Elementary School (rated 8/10), Walnut High School (rated 10/10).
  • Does 20940 Cornerstone Dr have air conditioning?
    Yes, 20940 Cornerstone Dr in Walnut, CA has air conditioning.
  • Does 20940 Cornerstone Dr have laundry facilities?
    Yes, 20940 Cornerstone Dr in Walnut, CA has in-unit laundry.