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.
For sale
Listed by: First Team Real Estate • Dana Malm • 949-613-0725
$1,698,000
1920 Flint Rock Rd, Diamond Bar, CA 91765
5beds
3,378sqft
Single Family Residence
Built in 1978
1.14 Acres Lot
$1,646,700 Zestimate®
$503/sqft
$308/mo HOA
What's special
- 18 days
- 920
- 30
Zillow last checked:
Listing updated:
Listed by:
Dana Malm DRE #01350938 949-613-0725,
First Team Real Estate
Source: CRMLS,MLS#: OC26221963
Originating MLS: California Regional MLS
Originating MLS: California Regional MLSFacts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 5
- Bathrooms: 4
- Full bathrooms: 3
- 1/2 bathrooms: 1
- Main level bathrooms: 2
- Main level bedrooms: 1
Rooms
- Room types: Bedroom, Entry/Foyer, Family Room, Foyer, Guest Quarters, Kitchen, Laundry, Library, Living Room, Primary Bedroom, Office, Other, Dining Room
Primary bedroom
- Features: Main Level Primary
Bathroom
- Features: Dual Sinks, Separate Shower, Tile Counters, Vanity, Walk-In Shower
Family room
- Features: Separate Family Room
Kitchen
- Features: Tile Counters, Walk-In Pantry
Other
- Features: Walk-In Closet(s)
Heating
- Central, Fireplace(s)
Cooling
- Central Air
Appliances
- Included: Dishwasher, Electric Cooktop, Electric Oven, Free-Standing Range, Disposal, Microwave, Water Softener, Water Heater
- Laundry: Inside, Laundry Room
Features
- Beamed Ceilings, Balcony, Breakfast Area, Ceiling Fan(s), 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 Closet(s)
- Flooring: Carpet, Vinyl, Wood
- Doors: Double Door Entry
- Has fireplace: Yes
- Fireplace features: Living Room
- Common walls with other units/homes: No Common Walls
Interior area
- Total interior livable area: 3,378 sqft
Video & virtual tour
Property
Parking
- Total spaces: 3
- Parking features: Driveway Down Slope From Street, Direct Access, Garage
- Attached garage spaces: 3
Accessibility
- Accessibility features: Safe Emergency Egress from Home, Grab Bars, Parking
Features
- Levels: Multi/Split
- Stories: 1
- Entry location: Multiple
- Patio & porch: Covered, Deck, Front Porch, Patio
- Pool features: Community, Association
- Fencing: Vinyl
- Has view: Yes
- View description: Canyon, Hills, Trees/Woods
Lot
- Size: 1.14 Acres
- Features: Cul-De-Sac, Sloped Down, Front Yard, Gentle Sloping, Lot Over 40000 Sqft, Landscaped, Near Park, Trees
Details
- Additional structures: Guest House Attached
- Parcel number: 8713032023
- Special conditions: Trust
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Ranch
- Property subtype: Single Family Residence
Materials
- Stucco, Wood Siding
- Foundation: Pillar/Post/Pier, Raised
- Roof: Fire Proof,Synthetic
Condition
- Turnkey
- New construction: No
- Year built: 1978
Utilities & green energy
- Sewer: Public Sewer
- Water: Public
Community & HOA
Community
- Features: Preserve/Public Land, Gated, Park, Pool
- Security: Gated with Guard, Gated Community, Gated with Attendant
HOA
- Has HOA: Yes
- Amenities included: Clubhouse, Controlled Access, Playground, Pickleball, Pool, Tennis Court(s), Trail(s)
- HOA fee: $308 monthly
- HOA name: Diamond Bar Country Estates Association
- HOA phone: 909-861-4114
Location
- Region: Diamond Bar
Financial & listing details
- Price per square foot: $503/sqft
- Tax assessed value: $510,917
- Date on market: 10/15/2026
- Cumulative days on market: 19 days
- Listing terms: Cash,Conventional,1031 Exchange,FHA,Submit,VA Loan
- Inclusions: The desk in the office.
- Road surface type: Paved
Estimated market value
$1,646,700
$1.56M - $1.73M
$6,021/mo
Price history
| Date | Event | Price |
|---|---|---|
| 10/15/2026 | Listed for sale | $1,698,000$503/sqft |
Source:  CRMLS #OC26221963 Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2026 | -- | $510,917 +2% |
| 2025 | $7,105 +8% | $500,900 +2% |
| 2024 | $6,579 +3.1% | $491,079 +2% |
| 2023 | $6,382 +2.9% | $481,451 +2% |
| 2022 | $6,201 +2.1% | $472,012 +2% |
| 2021 | $6,074 +1.3% | $462,758 +1% |
| 2020 | $5,998 | $458,014 +2% |
| 2019 | $5,998 +6.6% | $449,034 +2% |
| 2018 | $5,625 | $440,230 +2% |
| 2017 | $5,625 +4.6% | $431,599 +2% |
| 2016 | $5,379 +3.5% | $423,137 +1.5% |
| 2015 | $5,199 -1.4% | $416,782 +2% |
| 2014 | $5,273 | $408,618 +2.5% |
| 2012 | -- | $398,797 +2% |
| 2011 | -- | $390,978 +0.8% |
| 2010 | -- | $388,057 -0.2% |
| 2009 | -- | $388,980 +2% |
| 2008 | -- | $381,354 +2% |
| 2007 | -- | $373,877 +2% |
| 2006 | -- | $366,547 |
| 2005 | -- | $366,547 +4% |
| 2004 | -- | $352,315 +1.9% |
| 2003 | -- | $345,859 +2% |
| 2002 | -- | $339,078 +4% |
| 2000 | -- | $325,913 |
Find assessor info on the county website
Monthly payment
Est. payment
Payment breakdown
Explore the cost of this home by adjusting the details. Changes won't be saved.Climate risks
Neighborhood: 91765
- $2,113,1004 bd4 ba3.9k sqft1936 Flint Rock Rd, Diamond Bar, CA 91765Off Market
- $1,610,5003 bd3 ba2.7k sqft23420 Ridge Line Rd, Diamond Bar, CA 91765Off Market
- $1,566,9004 bd2 ba2.2k sqft23440 Ridge Line Rd, Diamond Bar, CA 91765Off Market
- $1,446,5004 bd3 ba2.7k sqft1921 Flint Rock Rd, Diamond Bar, CA 91765Off Market
Similar homes
- $1,620,0005 bd3 ba2.7k sqft1823 Cliffbranch Dr, Diamond Bar, CA 91765For Sale
MLS ID #TR26137504, Chihwei Lu, Pinnacle Real Estate Group. CRMLS - $1,699,0004 bd3 ba2.6k sqft625 N Pacer Ct, Walnut, CA 91789For Sale
MLS ID #CV26180986, Feng Zhou, EXP REALTY OF CALIFORNIA INC. CRMLS - $1,745,0005 bd4 ba2.9k sqft16097 Medlar Ln, Chino Hills, CA 91709For Sale
MLS ID #TR26125589, Yolla Zogheib, Century 21 Masters. CRMLS - $1,368,0006 bd5 ba2.7k sqft24412 Rosegate Pl, Diamond Bar, CA 91765For Sale
MLS ID #WS26165102, YING WANG, Pinnacle Real Estate Group. CRMLS
