Rarely does a home offer this level of flexibility, privacy, and opportunity. Lovingly maintained by its original owner, this custom residence features an attached accessory dwelling unit (ADU), an increasingly sought-after amenity for multigenerational living, extended family, or rental income. Conveniently located on the same level as the family room, kitchen, dining area, breakfast nook, and expansive backyard deck, the ADU also enjoys garage-level access, making daily living more comfortable for extended family members or guests. The ADU is part of the original build. Set on more than an acre adorned with picturesque trees, the property is surrounded by the preserved native beauty of California landscape. Inside, the formal living room welcomes you with a dramatic wood-beamed ceiling and charming fireplace. Just below, the formal dining room is surrounded by windows that frame the landscape and make every gathering feel connected to the outdoors. The family room, kitchen, and breakfast nook continue the experience, offering sweeping views of the trees and hills beyond, along with a deck that runs the length of the home. Five bedrooms and four bathrooms are thoughtfully arranged across the tri-level design, with balconies off all of the bedrooms providing peaceful places to enjoy the scenery. The home is filled with natural light. A hallway nook creates the perfect space for a small library, office, or craft room, and the home offers abundant storage throughout. Outdoors, the natural landscape showcases Pepper, Sycamore, and Live Oak trees along with the fragrant beauty of sage, monkey flower, buckwheat, California poppies, and orange trees. Bird lovers will enjoy the many colorful hummingbirds and various birds who also call this place home. An outdoor gardening room allows you space to continue preserving this rare native land, while an additional driveway provides extra parking for gatherings. Residents of Country Estates enjoy access to a heated swimming pool, badminton courts, basketball courts, tennis courts, pickleball courts, and scenic walking trails, all within the gated community.
Property Details
Price:
$1,698,000
MLS #:
OC26221963
Status:
Active
Beds:
5
Baths:
3.5
Type:
Single Family
Subtype:
Single Family Residence
Neighborhood:
616diamondbar
Listed Date:
Oct 18, 2026
Finished Sq Ft:
3,378
Lot Size:
49,790 sqft / 1.14 acres (approx)
Year Built:
1978
RanchWoodedTennisCommunity Gated616 – Diamond Bar616diamondbarWalnut Valley Unified
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Schools
School District:
Walnut Valley Unified
Interior
Appliances
Water Heater, Disposal, Microwave, Water Softener, Free-Standing Range, Electric Oven, Dishwasher, Electric Cooktop
Bathrooms
3 Full Bathrooms, 1 Half Bathroom
Cooling
Central Air
Flooring
Vinyl, Carpet, Wood
Heating
Fireplace(s), Central
Interior Features
Beamed Ceilings, Balcony, Ceramic Counters, Ceiling Fan(s), Pantry, Living Room Deck Attached, Open Floorplan, Storage, In-Law Floorplan, Tile Counters
Laundry Features
Inside, Laundry Room
Levels
Multi/Split
Main Level Bathrooms
2
Main Level Bedrooms
1
Exterior
Accessibility Features
2+ Access Exits, Parking, Grab Bars In Bathroom(s)
Architectural Style
Ranch
Association Amenities
Trail(s), Pickleball, Playground, Tennis Court(s), Pool, Clubhouse, Controlled Access
Attached Garage YN
1
Common Walls
No Common Walls
Community Features
Preserve/Public Land, Park
Construction Materials
Wood Siding, Stucco
Covered Spaces
3
Fencing
Vinyl
Garage Spaces
3
Lot Features
Wooded, Lot Over 40000 Sqft, Cul-De-Sac, Landscaped, Sloped Down, Park Nearby, Front Yard, Gentle Sloping
Open Parking YN
1
Other Structures
Guest House Attached
Parking Features
Garage, Driveway Down Slope From Street, Direct Access
Parking Spots
3
Parking Total
3
Patio And Porch Features
Covered, Front Porch, Patio, Deck
Roof
Fire Retardant, Synthetic
Security Features
Gated with Attendant, Gated with Guard, Gated Community
Stories
3
View
Trees/Woods, Hills, Canyon
Financial
HOA Fee
$308
HOA Fee Frequency
Monthly
HOA Name
Diamond Bar Country Estates Association
HOA Phone
9098614114
Map
Community
- Address1920 Flint Rock Road Diamond Bar CA
- CityDiamond Bar
- CountyLos Angeles
- Zip Code91765
Market Summary
Current real estate data for Single Family in Diamond Bar as of Oct 19, 2026
119
Single Family Listed
91
Avg DOM
522
Avg $ / SqFt
$1,761,719
Avg List Price
Property Summary
- 1920 Flint Rock Road Diamond Bar CA is a Single Family for sale in Diamond Bar, CA, 91765. It is listed for $1,698,000 and features 5 beds, 4 baths, and has approximately 3,378 square feet of living space, and was originally constructed in 1978. The current price per square foot is $503. The average price per square foot for Single Family listings in Diamond Bar is $522. The average listing price for Single Family in Diamond Bar is $1,761,719.
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