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$1,718,000 Just Listed

  • For Sale
  • Active
  • Single Family
  • 4 Beds
  • 4 Full Baths
  • 2,862 Sq. Ft.
  • 2 Car Garage
  • Updated 3 hours ago
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Welcome to this versatile property in the highly desirable City of Walnut! Extensively renovated by the current owner, truly move-in ready! This unique single-family residence has been thoughtfully configured into two separate living areas, offering exceptional flexibility for owner-users, multi-generational living, or potential rental income. Designed for easy maintenance, the backyard features a combination of concrete patio space and a grassy area, providing both convenience and outdoor enjoyment. A separate living area with its own private entrance is ideal for extended family, guests, a home office, or potential rental opportunities. Conveniently located directly across from Vejar Elementary School, part of the award-winning Walnut Valley Unified School District, this home offers an outstanding location for families. Whether you're looking for a primary residence with flexible living space or an investment opportunity, this property offers exceptional versatility and value. Don't miss this incredible opportunity!

Full Property Details for 20128 Diehl St

General

  • Price: $1,718,000
  • Status: Active
  • Type: Single Family
  • Source: MRMLS
  • MLS ID: WS26144271
  • Updated: Today (7/22/2026)
  • Added to Site: Today

Interior

  • Rooms/Areas: Separate Family Room, Laundry, Family Room
  • Fireplace(s): None
  • Appliances: Gas Cooktop, Electric Cooktop

Rooms

Bathrooms

  • Total Bathrooms: 4
  • Full Bathrooms: 4

Bedrooms

  • Total Bedrooms: 4

Other Rooms

  • Laundry: Inside, Outside

Additional Information

  • Pool Description: None
  • Spa Description: None

Exterior

  • Deck/Patio: Patio

Parking

  • Garage: Yes
  • Garage Spaces: 2

Location

  • County: Los Angeles
  • Driving Directions: La Puente Rd to S Lemon Ave, then to Diehl St.

School Information

  • School District: Walnut Valley Unified
  • Elementary School: VEJAR
  • Middle School: SUZANN
  • High School: WALNUT

Community

  • Community Features: Sidewalks

Heating & Cooling

  • Cooling Type: Dual, Central Air
  • Heating Type: Central

Utilities

  • Sewer: Public Sewer
  • Water: Public

Structural Information

  • Structure Type: Single Family Residence
  • Common Walls: 2 Common Walls (or More)
  • Entry Location: front door
  • Stories/Levels: Two
  • Stories Description: Two
  • Square Feet: 2,862
  • Sq. Ft. Source: Assessor
  • Year Built: 2020
  • Year Built Source: See Remarks

Unit Information

  • Units in Complex: 1

Lot Features

  • Property View: None
  • Lot Size (Acres): 0.1756
  • Lot Size (Sq. Ft.): 7,649
  • Lot Size Source: Assessor
  • Lot Description: 0-1 Unit/Acre

Financial Considerations

  • Price Per Sq. Ft.: $600.28

Disclosures and Reports

  • Special Conditions: Standard

Listed by Re/Max Premier/Arcadia, CHENGLIANG YAO

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Listing agent

— 20128 Diehl St —

  • CHENGLIANG YAO

    Re/Max Premier/Arcadia

626-615-0493

Get Pre-Approved Today

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Schools serving 20128 Diehl St

School District:Walnut Valley Unified School District
NameGradesDistance
Vejar Elementary School, Walnut, CA
20222 East Vejar Road, Walnut, CA 91789
K-50.1 mi
Suzanne Middle School
525 Suzanne Road, Walnut, CA 91789
6-80.9 mi
Walnut High School
400 Pierre Road, Walnut, CA 91789
9-120.8 mi
Disclaimer: School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.

Price & Sales History for 20128 Diehl St Get Price Alerts and Save Property

Date
Details
Price
Change
Source
7/22/2026
Listed
$1,718,000
56.18%
MLS
12/09/2020
Sold
$1,100,000
—
Public Record
Get Price Alerts and Save Property
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Tax History for 20128 Diehl St

Year
Property Taxes
Change
Tax Assessment
Change
2025
$14,936
8%
$1,190,673
4%
2023
$13,872
2%
$1,144,439
2%
2022
$13,588
2%
$1,122,000
2%
2021
$13,336
67%
$1,100,000
73%
2020
$7,989
3%
$637,245
2%
2019
$7,737
10%
$624,750
7%
2018
$7,060
3%
$582,000
—
2017
$6,864
13%
$582,000
13%
2016
$6,066
7%
$515,000
10%
2015
$5,652
-2%
$467,000
—
2014
$5,764
12%
$467,000
13%
2013
$5,136
—
$414,000
—
View All
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Estimate the Cost for 20128 Diehl St

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*These costs are estimates, and the interest rates assume exceptional credit standing.

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Listed by Re/Max Premier/Arcadia, CHENGLIANG YAO

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20128 Diehl St, Walnut, CA 91789 (MLS# WS26144271) is a Single Family property with 4 bedrooms and 4 full bathrooms. 20128 Diehl St is currently listed for $1,718,000 and was received on July 22, 2026. Want to learn more about 20128 Diehl St? Do you have questions about finding other Single Family real estate for sale in Walnut? You can browse all Walnut real estate or contact a Coldwell Banker agent to request more information.

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