Logo of Coldwell Banker Best Realty
Main Office 714.451.1700 Locations  |  Intranet  |  Log In
An open house is scheduled on Sat, 01/31/2026 1PM ~ 4PM
Property photo 1 of 21030 Riego, Diamond Bar
Property photo 2 of 21030 Riego, Diamond Bar
Property photo 3 of 21030 Riego, Diamond Bar
Property photo 4 of 21030 Riego, Diamond Bar
Property photo 5 of 21030 Riego, Diamond Bar
Property photo 6 of 21030 Riego, Diamond Bar
Property photo 7 of 21030 Riego, Diamond Bar
Property photo 8 of 21030 Riego, Diamond Bar
Property photo 9 of 21030 Riego, Diamond Bar
Property photo 10 of 21030 Riego, Diamond Bar
Property photo 11 of 21030 Riego, Diamond Bar
Property photo 12 of 21030 Riego, Diamond Bar
Property photo 13 of 21030 Riego, Diamond Bar
Property photo 14 of 21030 Riego, Diamond Bar
Property photo 15 of 21030 Riego, Diamond Bar
Property photo 16 of 21030 Riego, Diamond Bar
Property photo 17 of 21030 Riego, Diamond Bar
Property photo 18 of 21030 Riego, Diamond Bar
Property photo 19 of 21030 Riego, Diamond Bar
Property photo 20 of 21030 Riego, Diamond Bar
Property photo 21 of 21030 Riego, Diamond Bar
Property photo 22 of 21030 Riego, Diamond Bar
Property photo 23 of 21030 Riego, Diamond Bar
Property photo 24 of 21030 Riego, Diamond Bar
Property photo 25 of 21030 Riego, Diamond Bar
Property photo 26 of 21030 Riego, Diamond Bar
Property photo 27 of 21030 Riego, Diamond Bar
Property photo 28 of 21030 Riego, Diamond Bar
Property photo 29 of 21030 Riego, Diamond Bar
Property photo 30 of 21030 Riego, Diamond Bar
Property photo 31 of 21030 Riego, Diamond Bar
Property photo 32 of 21030 Riego, Diamond Bar
Property photo 33 of 21030 Riego, Diamond Bar
Property photo 34 of 21030 Riego, Diamond Bar
Property photo 35 of 21030 Riego, Diamond Bar
Property photo 36 of 21030 Riego, Diamond Bar
Property photo 37 of 21030 Riego, Diamond Bar
Property photo 38 of 21030 Riego, Diamond Bar
Click the above photo to start slide show
21030 Riego
Diamond Bar, CA 91765
Diamond Bar Area
Price:$1,450,000
$672.23 / Sq.Ft.
Bedroom:5Bathroom:3
Sq. Ft.:2,157Year Built:1980
Type:Single Family Residence, Detached
MLS #:TR26018437Status:Active
Listed:1/26/2026Modified:1/26/2026
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. *** This home goes beyond cosmetic updates with a complete infrastructure overhaul *** Electrical - upgraded 200Amp MAIN PANEL & whole-house WIRE REPLACEMENT *** Plumbing - full repiping 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.
Rooms Amenities
  • 5 Bedrooms
  • 3 Full Baths
  • Bedrooms: All Bedrooms Down, Great Room, Main Floor Bedroom, Main Floor Master Bedroom
  • Dining: Area, Breakfast Counter / Bar
  • View: None
 
  • Parking: Direct Garage Access, Driveway, Garage, Garage - Front Entry, Garage - Two Door, Garage Door Opener, Private, RV Access/Parking
  • # of Garages: 3
  • Pool: Private
  • Appliances: Dishwasher, Gas Oven, Gas Water Heater, Range/Stove Hood
Interior Exterior/Structural
  • Heating: Central Furnace
  • Cooling: Central
 
  • Stories: One Level
Lot Description Community/Association
  • Lot Sq. Ft.: 8,312
  • Acres: 0.191
 
  • LA County
  • Area: Diamond Bar
  • School District: Walnut Valley Unified
  • Elementary: Castle Rock
  • Jr. High: Southpoint
  • High: Diamond Bar
  • HOA: $0 +
Price Information Listing Information
  • Current Price: $1,450,000
  • Original Price: $1,450,000
  • Price/Sq. Ft.: $672.23
 
  • List Type: Standard
  • Listed Date: 1/26/2026
  • Modified Date: 1/26/2026
Listing Agent Listing Office
Yingqi Guan
626-991-3801
 Pacific Sterling Realty
 
  Mortgage Calculator
 Price For Sale:
 Down Payment Rate:
 Mortgage Amount:
 Mortgage Term:
 Interest Rate: %
 Monthly Payment:
  Need Help?
Michelle Kwon
Michelle Kwon
DRE# 01361657
Call 714-335-0500
to refer to MLS # TR26018437
  Get a new challenge
Contact Agent button


Aerial View  
Nearby Similar Home Sales[Map all] 
1
Property photo of 2366 Pepperdale DR1.35 miles
2366 Pepperdale DR
$1,250,000
4 brs/3 bas/2,161 sf
2
Property photo of 1419 Honeyhill Dr1.42 miles
1419 Honeyhill Dr
$1,190,000
4 brs/3 bas/2,294 sf
3
Property photo of 1301 Glenthorpe Dr1.57 miles
1301 Glenthorpe Dr
$1,250,000
3 brs/3 bas/2,212 sf
4
Property photo of 2344 Annadel AV1.69 miles
2344 Annadel AV
$1,580,000
4 brs/2 bas/1,996 sf
5
Property photo of 1703 Hollandale AV1.82 miles
1703 Hollandale AV
$1,088,800
3 brs/3 bas/2,100 sf
6
Property photo of 2202 Paso Real AV2.36 miles
2202 Paso Real AV
$1,188,000
4 brs/4 bas/2,199 sf
7
Property photo of 23328 Forest Canyon DR2.4 miles
23328 Forest Canyon DR
$1,428,000
4 brs/4 bas/2,074 sf
8
Property photo of 23408 Amberwick PL2.59 miles
23408 Amberwick PL
$1,499,900
4 brs/4 bas/2,252 sf
9
Property photo of 1177 Chisolm Trail2.67 miles
1177 Chisolm Trail
$1,298,000
4 brs/3 bas/2,078 sf
10
Property photo of 1511 Deer Crossing2.73 miles
1511 Deer Crossing
$1,475,000
4 brs/3 bas/2,208 sf
11
Property photo of 18536 Mescal ST2.9 miles
18536 Mescal ST
$1,199,900
4 brs/4 bas/2,041 sf
12
Property photo of 24324 Knoll CT2.99 miles
24324 Knoll CT
$1,549,000
4 brs/3 bas/2,303 sf
13
Property photo of 19941 Ralph Street3.35 miles
19941 Ralph Street
$1,260,000
4 brs/3 bas/1,996 sf
14
Property photo of 932 Wynnewood DR3.65 miles
932 Wynnewood DR
$1,315,000
4 brs/3 bas/2,155 sf
15
Property photo of 2503 Donosa3.71 miles
2503 Donosa
$1,228,000
5 brs/2 bas/2,241 sf
16
Property photo of 125 Lilac LN3.79 miles
125 Lilac LN
$1,485,000
4 brs/3 bas/2,066 sf
17
Property photo of 2050 Fallingleaf CR3.86 miles
2050 Fallingleaf CR
$1,299,000
3 brs/3 bas/2,272 sf
18
Property photo of 16908 Hillside DR3.9 miles
16908 Hillside DR
$1,198,900
4 brs/4 bas/2,014 sf
19
Property photo of 19019 Garnet WY3.91 miles
19019 Garnet WY
$1,199,900
4 brs/3 bas/2,139 sf
20
Property photo of 1854 Samara DR3.93 miles
1854 Samara DR
$1,338,888
4 brs/3 bas/2,131 sf

The information above, though secured from sources believed to be reliable, cannot be guaranteed. The buyer should independently verify this information to his/her satisfaction. Coldwell Banker Best Realty may or may not be the listing broker of this property. In either case, where allowed by law, Coldwell Banker Best Realty can represent you in the purchase of this property.

Based on information from California Regional Multiple Listing Service, Inc. as of 1/26/2026. This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. Display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and should investigate the data themselves or retain appropriate professionals. Information from sources other than the Listing Agent may have been included in the MLS data. Unless otherwise specified in writing, Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information contained herein may or may not have been the Listing and/or Selling Agent.

Zillow.com, Zillow, Zestimate, and Zindex are registered trademarks or trademarks of Zillow, Inc. ®Zillow, Inc. and suppliers. Any use of Zillow tools is subject to our general Terms of Use.