21006 Cornerstone Dr, Walnut, CA 91789
Property image
Property image
OFF MARKET

21006 Cornerstone Dr
Walnut, CA 91789

  • 3 Beds
  • 4 Baths
  • 1,760 sqft (on 0.40 acres)

$1,085,800

Trulia Estimate
as of Aug 13, 2026
Est. Refi. Payment $6,611/mo*
Refinance Your Home

$1,085,800

Trulia Estimate
as of Aug 13, 2026
Est. Refi. Payment $6,611/mo*
Refinance Your Home
3 Beds
4 Baths
1,760 sqft
(on 0.40 acres)

Home Value

Trulia Estimate
$1.09M
Since last month
Decreased$42K (-4%)
Since last year
Decreased$59K (-5.4%)
Since last sale
Increased$355K (+53.1%)
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 +51% in the last 10 years
MonthEstimated value
2026
August 2026$1.02M
July 2026$1.07M
June 2026$1.07M
May 2026$1.13M
April 2026$1.08M
March 2026$1.14M
February 2026$1.07M
January 2026$1.07M
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
21020 Bryan Cir, Walnut, CA
0.21
Single-Family Home
$1,250,000
09/02/25
3
2.5
1,811
20965 Deloraine Dr, Walnut, CA
0.24
Single-Family Home
$1,108,800
07/02/26
4
2
1,783
150 Greenleaf Dr, Walnut, CA
0.07
Single-Family Home
$1,300,000
08/23/25
5
4
2,364
421 Wrangler Way, Walnut, CA
0.41
Single-Family Home
$970,000
12/04/25
4
2
1,616
215 Spyglass Ln, Walnut, CA
0.55
Single-Family Home
$1,260,000
07/17/26
5
3
2,197
244 Maryville Dr, Walnut, CA
0.55
Single-Family Home
$1,100,000
02/10/26
3
2
1,384
20824 Fuero Dr, Walnut, CA
0.20
Single-Family Home
$1,800,000
06/12/26
5
6
3,203
20607 Fuerte Dr, Walnut, CA
0.79
Single-Family Home
$1,000,000
12/12/25
3
2
1,790
350 Foxboro Dr, Walnut, CA
0.74
Single-Family Home
$1,250,000
03/25/26
3
2.5
1,731
602 Lone Eagle Rd, Walnut, CA
0.70
Single-Family Home
$1,200,000
04/21/26
4
2
1,786

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
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
21002 Cornerstone Dr, Walnut, CA 91789
0.00
$971,000
4
3
1,800
Recently Sold
20956 Cornerstone Dr, Walnut, CA 91789
0.05
$888,000
3
3.5
1,760
Recently Sold
151 Redstone Dr, Walnut, CA 91789
0.05
$1,425,300
4
3
2,364
Off Market
155 Blue Crystal Dr, Walnut, CA 91789
0.04
$1,312,800
4
3
2,072
Off Market
130 Greenleaf Dr, Walnut, CA 91789
0.08
$1,063,100
4
3.5
1,931
Off Market
150 Greenleaf Dr, Walnut, CA 91789
0.07
$1,295,600
5
4
2,364
Off Market
159 Redstone Dr, Walnut, CA 91789
0.07
$1,379,500
4
3
2,316
Off Market
159 Sterling Dr, Walnut, CA 91789
0.06
$1,396,500
4
3
2,183
Off Market
20916 Jade Dr, Walnut, CA 91789
0.11
$912,700
4
3.5
1,760
Off Market
20936 Delphine Dr, Walnut, CA 91789
0.13
$1,138,400
3
2
1,714
Off Market

Local Information

  • Map ViewExplore the area around 21006 Cornerstone Dr.
-- mins to
Commute Destination

Home Highlights

Property Type
Single-Family Home
Year Built
2018
Lot Size
0.4 acres
Living Area
1,760 sqft
Price/Sqft
$617

About this House

Luxurious Condominium by Shea Homes in Award Winning Walnut Unified School District that offers Dual Immersion program. This 3 bedrooms, 3.5 baths, modern condo has state of the art upgrades throughout. Bedroom in first floor, and dual master suites on the top floor. Open floor-plan with spacious living room, formal dining, and balcony. Open kitchen with large quartz & granite counter top cooking Island, and lots of cabinets for storage. Appliances purchased in 2017, owner will not maintain or repair any appliances. Unique wood & tile floors, high quality carpet, recessed lighting, Central AC / Heating Systems, attached 2-car garage. Located within walking distance to Walnut High School, and close by Suzanne Middle School. Close and convenient to shopping center and parks. Commuter friendly with quick access to 60 & 57 fwys. No pets allowed, except ADA defined service animal.

Due to State mandated "shelter in place", property will not be available for in-person showings.
Please see property via video tour and apply directly on our website if you are interested.

Community Bbq
Community Park
21006 Cornerstone Dr, Walnut, CA 91789 is a 3 bedroom, 4 bathroom, 1,760 sqft single-family home built in 2018. It last sold for $669,000 on Oct 11, 2017. More recently, it was listed as a rental in May 2020 with an asking price of $2,950 per month. That rental listing was removed on July 1, 2020. It is currently off market. The Trulia Estimate is $1,085,800, with a rent estimate of $4,114/month.

Home Details for 21006 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: Single Family Home

Community

Units in Building: 1

Lot Information

Lot Area: 0.40 acres

Price and Tax history

DateEventPrice
Jul 1, 2020
Source: Agent Provided
ListingRemoved
$2,950
May 28, 2020
Source: Agent Provided
Listed For Rent
$2,950
Oct 11, 2017
Source: N/A
Sold
$669,000

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 21006 Cornerstone Dr

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Off Market Homes Near 21006 Cornerstone Dr

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Frequently asked questions about 21006 Cornerstone Dr

  • What is 21006 Cornerstone Dr estimated to be worth?
    Trulia's estimated value for 21006 Cornerstone Dr in Walnut, CA is $1,085,800.
  • What is the price history for 21006 Cornerstone Dr?
    21006 Cornerstone Dr in Walnut, CA last sold for $669,000 in October 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 21006 Cornerstone Dr have air conditioning?
    Yes, 21006 Cornerstone Dr in Walnut, CA has air conditioning.
  • How big is the lot at 21006 Cornerstone Dr?
    The lot at 21006 Cornerstone Dr in Walnut, CA is about 0.40 acres (17,484 sq ft).