This is a carousel with tiles that activate property listing cards. Use the previous and next buttons to navigate.
1/42
$1,428,000
This is a carousel with tiles that activate property listing cards. Use the previous and next buttons to navigate.
1/42
Property Description
This home goes beyond cosmetic updates with a complete infrastructure overhaul *** Electrical - upgraded 200Amp MAIN PANEL & whole-house WIRE REPLACEMENT *** Plumbing - full re-piping with durable Type-L COPPER *** New Insulation throughout the entire house & garage paired with New HVAC Ducting *** Interior defined by quality & safety, featuring ALL NEW FIRE-CODE drywall and ceilings, ALL NEW energy-efficient windows and patio door *** The chef-inspired kitchen showcases European-style cabinets, sleek Quartz countertop, an 18-gauge stainless steel single sink & all New appliances *** the curb appeal is enhanced by fresh paint, new garage door, new seamless gutters and a refurbished roof with new felt paper & reset tiles *** RV Parking available *** The backyard includes mature fruit trees and an established pool ready for its new owner's personal touch *** easy access to freeway *** few minutes to market and school *** it's NOT a flip house *** Transformed 5-beds, 3-baths, Single-Story home, located in the highly sought-after Walnut School District. *** The residence has been renovated down to the studs, offering the peace of mind of a Brand-New home with the character of an established neighborhood. ***
Full Property Details
Full Property Details for 21030 Riego
General
- Price: $1,428,000
- Status: Active
- Type: Single Family
- Source: MRMLS
- MLS ID: TR26018437
- Updated: 3/11/2026
- Days on Market: 47 days
- Added to Site: 49 day(s) ago
Interior
- Rooms/Areas: Walk-In Closet, Laundry, All Bedrooms Down, Main Floor Primary Bedroom, Kitchen, Great Room, Main Floor Bedroom
- Interior Features: Quartz Counters, Recessed Lighting, Copper Plumbing (Full)
- Fireplace: Yes
- Fireplace(s): Great Room
- Eating Areas: Breakfast Counter/Bar, Area
- Appliances: Gas Water Heater, Range Hood, Gas Oven, Dishwasher
- Flooring: Vinyl
Rooms
Bathrooms
- Total Bathrooms: 3
- Full Bathrooms: 3
Bedrooms
- Total Bedrooms: 5
Other Rooms
- Laundry: Individual Room
Additional Information
- Pool: Yes
- Pool Description: Private
Parking
- Garage: Yes
- Garage Spaces: 3
- Parking: Garage, Garage (Direct Access), RV Access/Parking, Garage Faces Front, Driveway, Private, Garage Door Opener, Garage (Two Doors)
Location
- County: Los Angeles
- Driving Directions: S Diamond Bar Blvd towards Fallow Field Dr towards E Riego Dr.
School Information
- School District: Walnut Valley Unified
- Elementary School: CASROC
- Middle School: SOUTHP
- High School: DIABAR
Community
- Community Features: Sidewalks, Suburban
Heating & Cooling
- Cooling Type: Central Air
- Heating Type: Central
Utilities
- Sewer: Public Sewer
- Water: Public
Structural Information
- Structure Type: Single Family Residence
- Common Walls: No Common Walls
- Entry Location: 1
- Stories/Levels: One
- Stories Description: One
- Square Feet: 2,157
- Sq. Ft. Source: Seller
- Year Built: 1980
- Year Built Source: Assessor
Lot Features
- Property View: None
- Lot Size (Acres): 0.1908
- Lot Size (Sq. Ft.): 8,312
- Lot Size Source: Assessor
- Irrigation System: Sprinkler System
- Lot Description: Lot 6500-9999, 0-1 Unit/Acre, Front Yard, Sprinkler System, Back Yard
Financial Considerations
- Price Per Sq. Ft.: $662.03
Disclosures and Reports
- Special Conditions: Standard
Listed by Pacific Sterling Realty, Yingqi Guan
Get Pre-Approved Today
Schools
Schools serving 21030 Riego
School District:Walnut Valley Unified School District
| Name | Grades | Distance |
|---|---|---|
Castle Rock Elementary School, Diamond Bar, CA 2975 Castlerock Road, Diamond Bar, CA 91765 | K-5 | 0.2 mi |
South Pointe Middle School 20671 Larkstone Drive, Walnut, CA 91789 | 6-8 | 1.3 mi |
Diamond Bar High School 21400 Pathfinder Road, Diamond Bar, CA 91765 | 9-12 | 0.6 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 21030 Riego
Date
Details
Price
Change
Source
3/03/2026
Price Reduced
$1,428,000
-1.52%
MLS
2/19/2026
Price Reduced
$1,449,999
—
MLS
1/26/2026
Listed
$1,450,000
46.46%
MLS
4/16/2024
Sold
$990,000
—
Public Record
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
Tax History for 21030 Riego
Year
Property Taxes
Change
Tax Assessment
Change
2025
$12,703
192%
$1,009,800
211%
2023
$4,353
2%
$324,610
2%
2022
$4,261
2%
$318,246
2%
2021
$4,175
1%
$312,007
1%
2020
$4,124
2%
$308,809
2%
2019
$4,048
6%
$302,755
2%
2018
$3,814
5%
$296,820
2%
2017
$3,646
3%
$291,001
2%
2016
$3,529
—
$285,296
2%
2015
$3,546
—
$281,011
2%
2014
$3,553
1%
$275,508
—
2013
$3,519
—
$274,263
—
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
Estimate the Cost for 21030 Riego
21030 Riego, Diamond Bar, CA 91765 (MLS# TR26018437) is a Single Family property with 5 bedrooms and 3 full bathrooms. 21030 Riego is currently listed for $1,428,000 and was received on January 26, 2026. Want to learn more about 21030 Riego? Do you have questions about finding other Single Family real estate for sale in Diamond Bar? You can browse all Diamond Bar real estate or contact a Coldwell Banker agent to request more information.

