21638 Brookside Ct, Walnut, CA 91789
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OFF MARKET

21638 Brookside Ct
Walnut, CA 91789

  • 3 Beds
  • 2 Baths
  • 1,225 sqft

$1,057,000

Trulia Estimate
as of Aug 11, 2026
Est. Refi. Payment $6,475/mo*
Refinance Your Home

$1,057,000

Trulia Estimate
as of Aug 11, 2026
Est. Refi. Payment $6,475/mo*
Refinance Your Home
3 Beds
2 Baths
1,225 sqft

Local Information

  • Map ViewExplore the area around 21638 Brookside Ct.
  • Schools1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Property Type
Single-Family Home
Living Area
1,225 sqft
Price/Sqft
$863

About this House

Brand new detached ADU in the back of the house. ALL utilities included. This ADU is in a highly desirable location in Walnut. Perfect for a young family looking to be in the Walnut school district. All appliances are brand new. 3 bedrooms and 2 full bathrooms.

7 minute drive to the 60 and 57 freeways. 15 minute drive to Orange County and 40 minutes to downtown Los Angeles without traffic. 5 minute drive to big chain eateries such as Applebee's, Panda Express and In N Out.

5 minute drive to Mt. San Antonio College (Mt. SAC).

Owners live onsite in the front.

No smoking allowed. No pets. Prospective tenants will need to go through a credit and background check. Must meet credit criteria and income. All tenants 18+ will be subject to a credit and background check.
21638 Brookside Ct, Walnut, CA 91789 is a 3 bedroom, 2 bathroom, 1,225 sqft single-family home. It last sold for $346,000 on Aug 30, 2000 (9,379% above the $3,650 asking price). More recently, it was listed as a rental in June 2026 with an asking price of $3,650 per month. That rental listing was removed on July 8, 2026. It is currently off market. The Trulia Estimate is $1,057,000, with a rent estimate of $3,606/month.

Home Details for 21638 Brookside Ct

Property Information

Property Type / Style
Property Type: Single Family Home

Rental Terms, Policies & Fees

Lease Term: 1 YearAvailable: now

Interior Features

Appliances & Utilities
DishwasherDryerRefrigeratorWasher
Heating & Cooling
Air ConditioningCooling System: Central Air
Levels, Entrance, & Accessibility
Floors: Hardwood

Exterior Features

Parking & Garage
Parking: Detached, On Site

Price History for 21638 Brookside Ct

DatePriceEventSource
07/08/2026$3,650ListingRemovedZillow Rentals
06/09/2026$3,650Listed For RentZillow Rentals
08/28/2024$3,500ListingRemovedZillow Rentals
08/09/2024$3,500Listed For RentZillow Rentals
08/30/2000$346,000Sold
N/A
08/02/1996$260,000Sold
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$8,108
Assessment$598,161
Home facts updated by county records

Comparable Sales for 21638 Brookside Ct

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
21627 Brookside Ct, Walnut, CA
0.04
Single-Family Home
$1,228,000
06/24/26
3
3
2,481
302 Spur Trail Ave, Walnut, CA
0.47
Single-Family Home
$1,020,000
02/17/26
3
2
1,673
673 Bronco Way, Walnut, CA
0.07
Single-Family Home
$1,508,000
11/04/25
5
3
2,174
351 Foxboro Dr, Walnut, CA
0.55
Single-Family Home
$1,149,000
02/23/26
3
2
1,623
21529 Magnolia St, Walnut, CA
0.36
Single-Family Home
$1,158,000
03/31/26
3
2.5
2,212
746 Arabian Ln, Walnut, CA
0.23
Single-Family Home
$1,735,000
10/07/25
3
3
2,835
21853 E Snow Creek Dr, Walnut, CA
0.22
Single-Family Home
$1,735,000
01/15/26
4
3
2,704
21530 Magnolia St, Walnut, CA
0.36
Single-Family Home
$1,210,000
04/29/26
2
2.5
2,212
350 Foxboro Dr, Walnut, CA
0.55
Single-Family Home
$1,250,000
03/25/26
3
2.5
1,731
351 Spur Trail Ave, Walnut, CA
0.43
Single-Family Home
$1,150,000
06/10/26
2
3
1,913

Nearby homes

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Assigned Schools

These are the assigned schools for 21638 Brookside Ct.
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

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Explore by feature - Air Conditioning

20 rentals with air conditioning in Walnut, CA

Explore by feature - Pool

Explore by feature - Washer/dryer

13 rentals with a washer/dryer in Walnut, CA

Explore by feature - Outdoor Space

13 rentals with an outdoor space in Walnut, CA

Homes for sale near 21638 Brookside Ct

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Off Market Homes Near 21638 Brookside Ct

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Frequently asked questions about 21638 Brookside Ct

  • What is 21638 Brookside Ct estimated to be worth?
    Trulia's estimated value for 21638 Brookside Ct in Walnut, CA is $1,057,000.
  • What is the price history for 21638 Brookside Ct?
    21638 Brookside Ct in Walnut, CA last sold for $346,000 in August 2000.
  • 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 21638 Brookside Ct have air conditioning?
    Yes, 21638 Brookside Ct in Walnut, CA has air conditioning.
  • Does 21638 Brookside Ct have laundry facilities?
    Yes, 21638 Brookside Ct in Walnut, CA has in-unit laundry.