1920 Flint Rock Road, Diamond Bar, CA 91765

Single-Family · For sale · $1,749,998 · MLS# OC26054191

Single-Family for sale in Southern California — $1,749,998. 5 beds · 4 baths · 3,378 sqft. 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…

1920 Flint Rock Road
For sale

$1,749,998

1920 Flint Rock Road, Diamond Bar, CA 91765

5beds
4baths
3,378sqft
Single-FamilyProperty type
1978Year built
1.14 acresLot size
3,378 sqftLiving area
$518/sqftPrice / sqft
$308/moHOA
3 spacesGarage

Facts & features

Interior

Bedrooms & bathrooms

  • Bedrooms: 5
  • Bathrooms: 4
  • Full bathrooms: 3
  • Half bathrooms: 1

Heating

  • Heating: Central, Fireplaces

Cooling

  • Cooling: Central Air

Appliances

  • Included: Dishwasher, Electric Cooktop, Electric Oven, Free Standing Range, Disposal, Microwave, Water Softener, Water Heater
  • Laundry: Inside, Laundry Room

Interior area

  • Living area: 3,378 sqft

Property

Parking

  • Total parking spaces: 3
  • Garage spaces: 3

Lot

  • Lot size: 1.14 acres

Features

  • Pool features: Community, Association
  • View: Canyon, Hills, Trees Woods

Construction

Type & style

  • Home type: Single-Family
  • Property subtype: Single Family Residence

Condition

  • Year built: 1978

Community & HOA

Community

  • Has HOA: Yes
  • HOA fee: $308/mo

Financial & listing details

  • Days on market: 128 days
  • Price / sqft: $518
  • Status: Active
  • MLS#: OC26054191

Location

  • City: Diamond Bar
  • ZIP: 91765

About this home

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. 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. A hallway nook creates the perfect space for a small library, office, or craft room, and the home offers abundant storage throughout. Update the interior to your preference and you will have the perfect forever home. 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.

Listing updated: July 11, 2026 at 6:10 PM

Listed by: Dana Malm, First Team Real Estate

Source: CRMLS, MLS#: OC26054191, Originating MLS: California Regional MLS

Location

Explore parks, streets, and what's around this home.

Diamond Bar

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Facts & features

Interior

Bedrooms & bathrooms

  • Bedrooms: 5
  • Bathrooms: 4
  • Full bathrooms: 3
  • Half bathrooms: 1

Heating

  • Heating: Central, Fireplaces

Cooling

  • Cooling: Central Air

Appliances

  • Included: Dishwasher, Electric Cooktop, Electric Oven, Free Standing Range, Disposal, Microwave, Water Softener, Water Heater
  • Laundry: Inside, Laundry Room

Interior area

  • Living area: 3,378 sqft

Property

Parking

  • Total parking spaces: 3
  • Garage spaces: 3

Lot

  • Lot size: 1.14 acres

Features

  • Pool features: Community, Association
  • View: Canyon, Hills, Trees Woods

Construction

Type & style

  • Home type: Single-Family
  • Property subtype: Single Family Residence

Condition

  • Year built: 1978

Community & HOA

Community

  • Has HOA: Yes
  • HOA fee: $308/mo

Financial & listing details

  • Days on market: 128 days
  • Price / sqft: $518
  • Status: Active
  • MLS#: OC26054191

Location

  • City: Diamond Bar
  • ZIP: 91765

Price history

DateEventPrice
7/10/2026Source: CRMLS, #OC26054191Price change$1,749,998$518/sqft-1.4%
3/13/2026Source: CRMLS, #OC26054191Listed for sale$1,775,000$525/sqft
California Regional Multiple Listing Service (CRMLS)

The multiple listing data appearing on this website, or contained in reports produced therefrom, is owned and copyrighted by California Regional Multiple Listing Service, Inc. ("CRMLS") and is protected by all applicable copyright laws. Information provided is for viewer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties the viewer may be interested in purchasing. All listing data, including but not limited to square footage and lot size is believed to be accurate, but the listing Agent, listing Broker and CRMLS and its affiliates do not warrant or guarantee such accuracy. The viewer should independently verify the listed data prior to making any decisions based on such information by personal inspection and/or contacting a real estate professional.

Based on information from California Regional Multiple Listing Service, Inc. as of 2026-07-11 18:10:22 PDT and /or other sources. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by broker or MLS. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information