1920 Flint Rock Road
Diamond Bar, CA 91765
Listing broker / agent: First Team Real Estate · Dana Malm · 949-613-0725 · CRMLS
MLS # OC26221963 · Last checked Oct 19, 2026 15:28 UTC
About this property
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
- MLS number
- OC26221963
- Status
- Active
- Type
- Residential
- Subtype
- Single Family Residence
- Beds / baths
- 5 Beds • 4 Baths
- Living area
- 3,378 Sq Ft
- Lot size
- 1.143 acres
- County
- Los Angeles
- Year built
- 1978
- Stories
- 1
More property detailsCollapse
Listing
- Days on market
- 3
Building
- Year built
- 1978
- Year built source
- Assessor
- Architectural style
- Ranch
- Stories
- 1
- Building stories
- 3
- Levels
- Multi Split
- Entry level
- 1
- Construction
- Stucco, Wood Siding
- Roof
- Fire Proof, Synthetic
- Foundation
- Pillar Post Pier, Raised
- Condition
- Turnkey
- Living area source
- Assessor
Bathrooms
- Full bathrooms
- 3
- Half bathrooms
- 1
Rooms & interior
- Main-level bedrooms
- 1
- Main-level bathrooms
- 2
- Rooms
- Bedroom, Entry Foyer, Family Room, Foyer, Guest Quarters, Kitchen, Laundry, Library, Living Room, Primary Bedroom, Office, Other, Dining Room
- Appliances
- Dishwasher, Electric Cooktop, Electric Oven, Free Standing Range, Disposal, Microwave, Water Softener, Water Heater
- Interior features
- Beamed Ceilings, Balcony, Breakfast Area, Ceiling Fans, Ceramic Counters, Separate Formal Dining Room, In Law Floorplan, Living Room Deck Attached, Open Floorplan, Pantry, Storage, Tile Counters, Bedroom On Main Level, Entrance Foyer, Main Level Primary, Primary Suite, Walk In Closets
- Flooring
- Carpet, Vinyl, Wood
- Heating
- Central, Fireplaces
- Cooling
- Central Air
- Fireplace
- Living Room
- Laundry
- Inside, Laundry Room
- Accessibility features
- Safe Emergency Egress From Home, Grab Bars, Parking
Exterior & parking
- Total parking spaces
- 3
- Garage spaces
- 3
- Parking
- Driveway Down Slope From Street, Direct Access, Garage
- Attached garage
- Yes
- Pool
- Community, Association
- Patio / porch
- Covered, Deck, Front Porch, Patio
- Lot features
- Cul De Sac, Sloped Down, Front Yard, Gentle Sloping, Lot Over40000 Sqft, Landscaped, Near Park, Trees
- Lot size source
- Assessor
- Fencing
- Vinyl
- Property outlook
- Canyon, Hills, Trees Woods
Utilities & community
- Water
- Public
- Sewer
- Public Sewer
- Community features
- Preserve Public Land, Gated, Park, Pool
- Association amenities
- Clubhouse, Controlled Access, Playground, Pickleball, Pool, Tennis Courts, Trails
Fees & lease terms
- Association
- Yes
- Association fee
- $308.00
- Association fee frequency
- Monthly
Schools reported in the listing
- High school district
- Walnut Valley Unified
School information is supplied with the listing. Confirm current attendance boundaries and enrollment eligibility directly with the school district.
Nearby public schools
Nearby does not mean assigned. These are approximate straight-line distances from the property, not walking or driving routes. Confirm attendance boundaries, enrollment eligibility, grades and current school status directly with the district.
| School / district | Grades | Distance |
|---|---|---|
| Quail Summit Elementary (school website, opens in a new tab) Walnut Valley Unified · Diamond Bar | K–5 | 0.4 mi |
| Chaparral Middle (school website, opens in a new tab) Walnut Valley Unified · Diamond Bar | 6–8 | 0.6 mi |
| Maple Hill Elementary (school website, opens in a new tab) Walnut Valley Unified · Diamond Bar | K–5 | 1.0 mi |
| Evergreen Elementary (school website, opens in a new tab) Walnut Valley Unified · Diamond Bar | K–5 | 1.5 mi |
| Diamond Bar High (school website, opens in a new tab) Walnut Valley Unified · Diamond Bar | 9–12 | 1.7 mi |
| Pantera Elementary (school website, opens in a new tab) Pomona Unified · Diamond Bar | K–6 | 1.9 mi |
| Lorbeer Middle (school website, opens in a new tab) Pomona Unified · Diamond Bar | 7–8 | 1.9 mi |
| Castle Rock Elementary (school website, opens in a new tab) Walnut Valley Unified · Diamond Bar | K–5 | 2.2 mi |
Source: California Department of Education · 2025-26 school locations. Downloaded Oct 2, 2026 UTC. This annual snapshot may not reflect later changes. Public schools only; not a complete list of education options. No ratings or attendance assignments are provided.
Check the California School Directory ↗Price and tax history
Asking price
- Current asking price
- $1,698,000
- MLS-reported original asking price
- $1,698,000
| Observed (UTC) | Asking price |
|---|---|
| Oct 15, 2026 20:28 | $1,698,000 |
MLS values are reported for this listing, not prior sales. Observation dates show when our importer saw an asking price, not when the MLS changed it. Up to 24 observations are retained; changes between refreshes may be missed. This is not a complete price or sales history.
Property taxes
Tax history is not available from the imported listing data.
Source: MLS feed. Only supplied tax years are shown, up to 10 years; this is not a county tax archive. Amounts may be corrected and taxes may change after purchase. Verify assessments and current taxes with the county. These values do not automatically fill the payment calculator.
Market trends in Diamond Bar
Active residential homes for sale in Diamond Bar, CA, available through this website's authorized feed. Includes residential subtypes; excludes rentals. Not the entire market or a valuation of this property.
Observed price activity · past 30 days
22 currently active listings have an observed price-change pair ending in this period. A listing can appear in both counts.
Calculated 2026-10-19 15:33 UTC. Source: this website's authorized MLS inventory. Import progress, freshness rules and coverage affect the figures. Medians exclude missing/invalid values; price per sq ft is the median of individual listing ratios. Price observations are limited to the last 24 per listing and may miss changes between refreshes. This is not a complete 30-day market report, historical inventory trend, appreciation measure, or sold-price analysis.
Payment calculator
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Illustration only—not a rate quote, preapproval, lending offer or affordability determination. Assumes equal monthly payments on a fully amortizing fixed-rate loan; no adjustable rates, interest-only periods or balloon payments. Excludes closing costs, utilities, maintenance, special assessments and other unentered costs. Actual payments and escrow can differ. Review a Loan Estimate with your lender.
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