20948 Cornerstone Dr, Walnut, CA 91789
Property image
Property image
OFF MARKET

20948 Cornerstone Dr
Walnut, CA 91789

  • 4 Beds
  • 4 Baths
  • 1,983 sqft (on 0.40 acres)

$977,200

Trulia Estimate
as of Aug 13, 2026
Est. Refi. Payment $5,957/mo*
Refinance Your Home

$977,200

Trulia Estimate
as of Aug 13, 2026
Est. Refi. Payment $5,957/mo*
Refinance Your Home
4 Beds
4 Baths
1,983 sqft
(on 0.40 acres)

Home Value

Trulia Estimate
$977K
Since last month
Decreased$28K (-2.9%)
Since last year
Decreased$42K (-4.3%)
Since last sale
Increased$126K (+15.4%)
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 +35% in the last 10 years
MonthEstimated value
2026
August 2026$946K
July 2026$965K
June 2026$974K
May 2026$977K
April 2026$987K
March 2026$1.01M
February 2026$984K
January 2026$975K
2025
2024
2023
2022
2021
2020
2019
2018

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
20956 Cornerstone Dr, Walnut, CA
0.00
Townhouse
$888,000
10/16/25
3
3.5
1,760
873 Terrace Ln W #4, Diamond Bar, CA
1.86
Townhouse
$1,350,000
09/04/25
4
4.5
2,420
923 Terrace Ln W #1, Diamond Bar, CA
1.84
Townhouse
$1,060,000
03/09/26
3
3
1,809
817 Terrace Ln E #7, Diamond Bar, CA
1.90
Townhouse
$1,390,000
07/28/26
4
5
2,430
1253 Porto Grande #2, Diamond Bar, CA
2.01
Townhouse
$798,800
07/14/26
3
3
1,485
22966 Estoril Dr #1, Diamond Bar, CA
2.05
Townhouse
$828,800
06/12/26
3
3
1,570
1221 Porto Grande #4, Diamond Bar, CA
2.09
Townhouse
$792,000
12/15/25
3
3
1,642
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 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
150 Greenleaf Dr, Walnut, CA 91789
0.03
$1,295,600
5
4
2,364
Off Market
20956 Cornerstone Dr, Walnut, CA 91789
0.00
$888,000
3
3.5
1,760
Recently Sold
130 Greenleaf Dr, Walnut, CA 91789
0.02
$1,063,100
4
3.5
1,931
Off Market
151 Redstone Dr, Walnut, CA 91789
0.03
$1,425,300
4
3
2,364
Off Market
20980 Cornerstone Dr, Walnut, CA 91789
0.03
$940,000
3
3.5
1,760
Off Market
20968 Cornerstone Dr, Walnut, CA 91789
0.03
$939,500
3
3.5
1,880
Off Market
159 Redstone Dr, Walnut, CA 91789
0.06
$1,379,500
4
3
2,316
Off Market
20916 Jade Dr, Walnut, CA 91789
0.06
$912,700
4
3.5
1,760
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
0.05
$971,000
4
3
1,800
Recently Sold
159 Sterling Dr, Walnut, CA 91789
0.09
$1,396,500
4
3
2,183
Off Market
20848 Fuero Dr, Walnut, CA 91789
0.13
$1,506,100
5
3
3,148
Off Market

Local Information

  • Map ViewExplore the area around 20948 Cornerstone Dr.
-- mins to
Commute Destination

Home Highlights

Property Type
Townhouse
Year Built
2018
Lot Size
0.4 acres
Living Area
1,983 sqft
Price/Sqft
$493

About this House

BUILT IN 2018 IN WALNUT! This beautiful townhouse situated in the highly desirable community in Cornerstone, it is one of the best floorpans with large space of 1983 sqft (Per Builder). One bedroom downstairs and spacious living room, kitchen and patio on the second floor, three bedrooms on the third floor. The modern staircase will lead you to the all floors which makes each one has their own space and not been disturbed. Upgraded cabinets, high quality wood floor, new-tech window shades and upgraded appliances all make the home level up and could fulfill all your needs. Convenience of numerous shopping centers, restaurants and WALKING DISTANCE TO AWARD WINNING WALNUT HIGH SCHOOL! LOW TAX, NO MELLO-ROOS. Won't last long on the market!
20948 Cornerstone Dr, Walnut, CA 91789 is a 4 bedroom, 4 bathroom, 1,983 sqft townhouse built in 2018. It last sold for $820,000 on Sep 10, 2021. It is currently off market. The Trulia Estimate is $977,200, with a rent estimate of $4,291/month.

Home Details for 20948 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 and Tax history

DateEventPrice
Sep 10, 2021
Source: N/A
Sold
$820,000
Jul 24, 2021
Source: CRMLS #TR21132699
Pending
$849,900
Jun 18, 2021
Source: RE/MAX International #TR21132699
Listed For Sale
$849,900
Mar 8, 2018
Source: N/A
Sold
$742,500

Market trends in Walnut

Last updated July 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
—
Sale-to-List Price
—
Price per sq ft
—
Available listings
79
4MoM
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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 20948 Cornerstone Dr

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Off Market Homes Near 20948 Cornerstone Dr

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Frequently asked questions about 20948 Cornerstone Dr

  • What is 20948 Cornerstone Dr estimated to be worth?
    Trulia's estimated value for 20948 Cornerstone Dr in Walnut, CA is $977,200.
  • What is the price history for 20948 Cornerstone Dr?
    20948 Cornerstone Dr in Walnut, CA last sold for $820,000 in September 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 20948 Cornerstone Dr have air conditioning?
    Yes, 20948 Cornerstone Dr in Walnut, CA has air conditioning.