JUST REDUCED!!!!! BEAUTIFUL SINGLE STORY 3 CAR GARAGE HOME WITH A GORGEOUS CANYON VIEW ON AN 8087 SQ. FT. END OF CUL-DE-SAC LOT LOCATION. DIAMOND BAR JEWEL OF A LOCATION!!! LOCATED IN SOUTH DIAMOND BAR IN THE AWARD WINNING WALNUT VALLEY UNIFIED SCHOOL DISTRICT WITH EASY ACCESS TO FREEWAY. EXTREMELY WELL MAINTAINED. THIS HOME IS SUPER CLEAN WITH 4 BEDROOMS, 2 BATHS, FAMILY ROOM WITH FIREPLACE ADJACENT TO THE KITCHEN, INSIDE SEPARATE LAUNDRY, A LARGE LIVING ROOM WITH HIGH VAULTED CEILING AND WET BAR. THE MASTER SUITE, LIVING ROOM AND FAMILY ROOM ALL LEAD TO THE PROFESSIONALLY LANDSCAPED LUSH BACK YARD WITH IN GROUND SPA, LARGE PATIO, SEPARATE GARDEN AREA AND DOG RUN. PRIDE OF OWNERSHIP SHOWS HERE!!
Single-familyProperty Type
1980Year Built
8,087 sq ftLot Size
$602Est. Price/Sq.Ft.
3 car garageParking
Listed by Debbie Derentz•DRE #01804437• Realty One Group West
JUST REDUCED!!!!! BEAUTIFUL SINGLE STORY 3 CAR GARAGE HOME WITH A GORGEOUS CANYON VIEW ON AN 8087 SQ.FT. END OF CUL-DE-SAC LOT LOCATION.DIAMOND BAR JEWEL OF A LOCATION!!! LOCATED IN SOUTH DIAMOND BAR IN THE AWARD WINNING WALNUT VALLEY UNIFIED SCHOOL DISTRICT WITH EASY ACCESS TO FREEWAY. EXTREMELY WELL MAINTAINED. THIS HOME IS SUPER CLEAN WITH 4 BEDROOMS, 2 BATHS, FAMILY ROOM WITH FIREPLACE ADJACENT TO THE KITCHEN, INSIDE SEPARATE LAUNDRY, A LARGE LIVING ROOM WITH HIGH VAULTED CEILING AND WET BAR. THE MASTER SUITE, LIVING ROOM AND FAMILY ROOM ALL LEAD TO THE PROFESSIONALLY LANDSCAPED LUSH BACK YARD WITH IN GROUND SPA, LARGE PATIO, SEPARATE GARDEN AREA AND DOG RUN. PRIDE OF OWNERSHIP SHOWS HERE!!
Public Records
Sep 19, 1980
Sold
$125,000
$66/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$10,788 (+5.5%)
$486,108 + $365,586
$851,694
2024
$10,228 (+3.5%)
$476,577 + $358,418
$834,995
2023
$9,885 (+2.1%)
$467,233 + $351,391
$818,624
2022
$9,681 (+1.9%)
$458,072 + $344,501
$802,573
2021
$9,503 (−2.0%)
$449,091 + $337,747
$786,838
2020
$9,693 (+2.0%)
$440,286 + $331,125
$771,411
2019
$9,507 (+191.6%)
$449,452 + $341,147
$790,599
2018
$3,261 (+4.5%)
$440,640 + $334,458
$775,098
2017
$3,119 (+3.4%)
$81,953 + $161,419
$243,372
2016
$3,015 (−0.5%)
$81,953 + $161,419
$243,372
2015
$3,029 (−0.2%)
$80,347 + $158,254
$238,601
2014
$3,036 (+1.4%)
$77,591 + $152,824
$230,415
2012
$2,994 (+3.0%)
$77,241 + $152,134
$229,375
2011
$2,907 (+0.9%)
$75,727 + $149,151
$224,878
2010
$2,881 (+0.7%)
$74,243 + $146,227
$220,470
2009
$2,861 (+3.0%)
$73,689 + $145,135
$218,824
2008
$2,778
$73,865 + $145,480
$219,345
Tax history for 21010 Riego Dr
Year
Property tax
Land + Additions
Assessment*
2025
$10,788 (+5.5%)
$486,108 + $365,586
$851,694
2024
$10,228 (+3.5%)
$476,577 + $358,418
$834,995
2023
$9,885 (+2.1%)
$467,233 + $351,391
$818,624
2022
$9,681 (+1.9%)
$458,072 + $344,501
$802,573
2021
$9,503 (−2.0%)
$449,091 + $337,747
$786,838
2020
$9,693 (+2.0%)
$440,286 + $331,125
$771,411
2019
$9,507 (+191.6%)
$449,452 + $341,147
$790,599
2018
$3,261 (+4.5%)
$440,640 + $334,458
$775,098
2017
$3,119 (+3.4%)
$81,953 + $161,419
$243,372
2016
$3,015 (−0.5%)
$81,953 + $161,419
$243,372
2015
$3,029 (−0.2%)
$80,347 + $158,254
$238,601
2014
$3,036 (+1.4%)
$77,591 + $152,824
$230,415
2012
$2,994 (+3.0%)
$77,241 + $152,134
$229,375
2011
$2,907 (+0.9%)
$75,727 + $149,151
$224,878
2010
$2,881 (+0.7%)
$74,243 + $146,227
$220,470
2009
$2,861 (+3.0%)
$73,689 + $145,135
$218,824
2008
$2,778
$73,865 + $145,480
$219,345
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Public record
Public record
Zoning
Beds
4
Baths
2
Stories
—
Lot width
—
Lot depth
—
Lot size
8,013 Sq. Ft.
Year renovated
1980
Sq. Ft.
1,892
Year built
1980
Style
Single Family Residential
County
Los Angeles County
APN
8765013020
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Oct 7, 2026.
RL
Low Density Residential District
The RL zoning district is intended primarily for parcels developed with existing detached single-family dwellings. The maximum allowed density for new residential subdivisions within this zoning district will be three dwellings per gross acre. The RL zoning district is consistent with the low density residential land use category of the general plan.
Permitted uses
Include but are not limited to:
Livestock production
Housing-Single unit
Housing-Senior
Housing-Other
Infrastructure
Fire house
Police station
Park & open space
Property details
Parking
Parking / Garage Information
Attached Garage
# of Garage Spaces: 3
Driveway, Driveway - Concrete, Direct Garage Access, Garage - Side Entry, Side by Side
Has Parking
# of Parking Spaces: 3
Interior
Laundry Information
Has Laundry
Gas & Electric Dryer Hookup, Individual Room, Inside, Washer Hookup
Kitchen Information
Appliances: Built In Range, Dishwasher, Garbage Disposal, Gas Range, Gas Cooktop, Gas Water Heater
Has Appliances
Breakfast Counter / Bar, In Family Room
Kitchen Open to Family Room, Tile Counters
Bathroom Information
# of Baths (Full): 2
Bathtub, Shower, Shower in Tub, Corian Counters, Double Sinks In Master Bath, Exhaust fan(s), Linen Closet/Storage, Vanity area
Cooling Information
Central, Electric
Has Cooling
Room Information
All Bedrooms Down, Attic, Entry, Foyer, Great Room, Kitchen, Laundry, Living Room, Primary Bathroom, Primary Bedroom, Primary Suite, Walk-In Closet
Fireplace Information
Family Room
Has Fireplace
Flooring Information
Carpet, Tile, Vinyl
Heating Information
Central Furnace, Forced Air
Has Heating
Interior Features
Mirrored Closet Doors, Sliding Glass Door(s)
Bar, Block Walls, Cathedral-Vaulted Ceilings, Ceramic Counters, Open Floor Plan, Pantry, Tile Counters, Unfurnished, Wet Bar
Foundation Details: Concrete Perimeter, Concrete Slab
Exterior Features
Awning, Rain Gutters
Patio And Porch Features: Concrete, Covered, Patio, Patio Open, Porch - Front, Stone
Has Patio
Pool Features: None
Has Sprinklers
Lot Information
Elevation Units: Feet
Lot Size Source: Assessor's Data
Lot Features: 0-1 Unit/Acre, Back Yard, Cul-De-Sac, Front Yard, Garden, Landscaped, Lawn, Lot 6500-9999, Sprinkler System, Sprinklers In Front, Sprinklers In Rear, Sprinklers On Side, Sprinklers Timer, Yard
Property Information
Total # of Units: 1
Accessibility Features: 2+ Access Exits, 48 inch or more wide halls, Low Pile Carpeting, No Interior Steps
Common Walls: 2+ common walls
Direction Faces: North
Parcel Number: 8765013020
Attached Property
Total # of Stories: 1
Has View
Financial
Assesments Information
Assessments: Special Assessments
Utilities
Utilities Information
Electric: 220V for Spa, 220V In Laundry
Sewer: Public Sewer
Cable Available, Cable Connected, Electricity Connected, Natural Gas Available, Natural Gas Connected, Telephone - In Street, Telephone - On Property, Sewer Connected, Underground Utilities, Water Available, Water Connected
Water Source: District/Public
Location
Multi-Unit Information
# of Units In Community: 1
Neighborhood Information
Community Features: Curbs, Sidewalks
School Information
Elementary School: Castle Rock
Middle Or Junior School: Southpoint
High School: Diamond Bar
High School District: Walnut Valley Unified
Elementary School 2: CASROC
Middle Or Junior School 2: SOUTHP
High School 2: DIABAR
Location Information
Latitude: 33.97346800
Longitude: -117.84710200
Directions: Cross Streets: N-Diamond Bar Blvd./W 57 Fwy
Road Frontage Type: Access via City Streets
Road Surface Type: Paved
Zoning: LCCPD-RPD10000
Public facts
Beds: 4
Baths: 2.0
Sq. Ft.: 1,892
Stories: —
Lot Size: 8,013 square feet
Style: Single Family Residential
Year Built: 1980
Year Renovated: 1980
County: Los Angeles County
APN: 8765013020
Home facts updated by county records on Oct 7, 2026
Other
Listing Information
Days Active in MLS: 118
Continuous Days Active in MLS: 118
Listing Agent Information
List Agent First Name: Debbie
List Agent Last Name: Derentz
Listing Office Information
List Office Name: Realty One Group, Inc
Selling Agent Information
Buyer Agent First Name: Maggie
Buyer Agent Last Name: Wang
Selling Office Information
Buyer Office Name: HNT Realty
Around this home
Schools
K - 12
Preschool & daycare
Castle Rock Elementary School
Public K-5 • Assigned • 0.2mi
10/10
South Pointe Middle School
Public 6-8 • Assigned • 1.2mi
10/10
Diamond Bar High School
Public 9-12 • Assigned • 0.7mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Local insights from Redfin agents
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