Listed by Wendy Tsau •DRE #01072489 • Sunbright One Inc.

Contact: 626-643-4276

For sale

$1,239,999

Est. $8,396/mo —

•

1,755

sq ft

20774 Timberline, Walnut, CA 91789

About this home

Welcome to this beautifully updated 3 bedroom, 2.5 bathroom home in one of Diamond Bar's most desirable neighborhoods. this home offers beautiful neighborhood views, exceptional privacy, and a peaceful setting. The open floor plan features high ceilings, abundant skylights, the master bedroom suite dual vanities, and separate glass-enclosed shower. The kitchen ample cabinetry with granite countertops. Additional upstair den areas provide options for a home office. this property offers plenty of room for outdoor dining, gardening . Throughout the home you'll find wood flooring, plantation shutters, dual-pane windows, impressive double-door entry, and an attached two-car garage. Located within the award-winning Walnut Valley Unified School District and just a short walk to Park, this home is also minutes from Diamond Bar Town Center, H Mart, Sprouts, Costco, and the 57, 60, and 71 freeways. this is a rare opportunity to own a peaceful sanctuary in one of Diamond Bar's premier communities.

Single-familyProperty Type

1989Year Built

3,999 sq ftLot Size

$707Price/Sq.Ft.

$15/moHOA Dues

2 car garageParking

Listing updated: Oct 22, 2026 at 12:06am

Redfin checked: 2 minutes ago

•Source:CRMLS #TR26201462

Payment calculator

$8,396 per month

Principal and interest$6,851

Property taxes

HOA dues

Home insurance

Utilities

5 minutes to get started. No credit impact.

Affordability tools

See this home in person

Open houses

No upcoming open houses.

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Around this home

Schools

K - 12
Preschool & daycare

Castle Rock Elementary School

Public K-5 • Assigned • 0.6mi

10/10

South Pointe Middle School

Public 6-8 • Assigned • 1.1mi

10/10

Diamond Bar High School

Public 9-12 • Assigned • 0.9mi

10/10

Provided by GreatSchools

About

Pathfinder

Pathfinder, located between Colima Road and Pathfinder Road, is a hillside and residential Rowland Heights neighborhood with curving cul-de-sacs and wide valley views. The neighborhood’s character concentrates around the Colima Rd & Nogales St intersection, where late-night eateries, tea counters, and small plazas keep the sidewalks active. Housing leans toward 1970s–1990s ranch homes and two-story builds, often with stepped driveways and terraced yards. Schabarum Regional Park frames the area with ridgelines, equestrian trails, and big-sky overlooks. Pacific Palms Resort adds a golf-course edge and a resort-like streetscape nearby. Local staples such as The Hat, A Ri Rang Tofu House, and 101 Noodle Express act as familiar meeting points.

Provided by Walk Score and Local Logic

Offer insights

20774 Timberline · $1,239,999

Strong offer

$1.26M and above

75% chance or better to win

Why $1.26M+ is a strong offer

DAYS ON MARKET

The average home goes pending in 46 days.

SALE-TO-LIST

Most homes are selling 0% below list price.

About offer insights

Property details

Interior
Exterior
Finance

Kitchen

Bathroom

Bedroom

Living

Dining

Interior features
Living room fireplace
Turnkey condition

Bedrooms
All bedrooms are upstairs

Bathrooms
3 full bathrooms

Kitchen
Water softener
Dishwasher
Electric stove

Laundry & utility
Laundry in garage

Flooring
Wood flooring

Heating & cooling
Central furnace
Central cooling

Sale and tax history for 20774 Timberline

Sale History
Tax History

Date

Event

Price

CRMLS #TR26201462

Oct 22, 2026

Relisted

—

Sep 17, 2026

Listed

$1,239,999

$707/sq ft

CRMLS #TR16009164

Feb 29, 2016

Sold

$715,000

$407/sq ft

Feb 5, 2016

Contingent

—

Jan 15, 2016

Listed

$723,800

$412/sq ft

JUST BACK ON THE MARKET, SUBMIT AN OFFER, ABSOLUTE BEAUTY, SHOWS PRIDE OF OWNERSHIP, TOTALLY UPGRADED 2 STORY HOME W/ VARIOUS TOP QUALITY FEATURES, PANORAMIC PEACEFUL VIEW OF HILL & VALLEY, NICE AND COZY COURTYARD W/ NATURAL SLATE STONE AND WROUGHT IRON GATE, SURVEILLANCE SYSTEM FOR SUCURITY, LARGE LIVING ROOM W/ HIGH VAULTED CEILING AND MARBLE FIREPLACE, HARDWOOD FLOORINGS THROUGHOUT DOWNSTAIRS, BRAND NEW PLANTATION SHUTTERS, DOUBLE PANE WINDOWS THROUGHOUT, SKY LIGHT, ELEGANT CUSTOM PAINT, GOOD SIZE FAMILY ROOM, TOTALLY REMODELED GOURMET KITCHEN W/ GRANITE COUNTER TOP, NEWER STAINLESS STEEL APPLIANCES, RECESSED LIGHT, BUILT-IN MICROWAVE OVEN, BAY WINDOW AND BREAKFAST NOOK, SPACIOUS MASTER SUITE W/ VAULTED CEILING, BALCONY W/ NATURAL STONE FLOOR AND GORGEOUS VIEW, LUXURIOUS BERBER CARPET THROUGHOUT UPSTAIRS, ALL BATHROOMS ARE REMODELED W/ GRANITE COUNTER TOPS, UPGRADED TILE FLOOR AND DECORATIVE TILE BATH TUB ENCLOSURE, AWARD WINNING SCHOOLS, MANY OTHER EXTRAS!! ENJOY BRIGHT, PASTORAL AND TRANQUIL ATMOSPHERE….

CRMLS #TR15257068

Dec 17, 2015

Listing Removed

—

Dec 4, 2015

Listed

$723,800

$412/sq ft

CRMLS #SR15167154

Nov 30, 2015

Listing Removed

—

Oct 13, 2015

Price Changed

$729,900

$416/sq ft

Aug 28, 2015

Price Changed

$750,000

$427/sq ft

Jul 30, 2015

Listed

$779,000

$444/sq ft

CRMLS #CV15093091

Jul 27, 2015

Listing Removed

—

Jul 7, 2015

Price Changed

$779,000

$444/sq ft

May 1, 2015

Listed

$799,000

$455/sq ft

Public Records

Mar 27, 1991

Sold

$252,500

$144/sq ft

Public Records

Nov 2, 1988

Sold

$192,000

$109/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$11,184 (+4.4%)

$497,956 + $365,378

$863,334

2024

$10,708 (+2.5%)

$488,193 + $358,214

$846,407

2023

$10,446 (+2.2%)

$478,621 + $351,191

$829,812

2022

$10,223 (+1.9%)

$469,237 + $344,305

$813,542

2021

$10,028 (+4.4%)

$460,037 + $337,554

$797,591

2020

$9,602 (+1.9%)

$451,017 + $330,936

$781,953

2019

$9,419 (+3.8%)

$446,393 + $327,543

$773,936

2018

$9,075 (+4.7%)

$437,641 + $321,121

$758,762

2017

$8,664 (+80.1%)

$420,648 + $308,652

$729,300

2016

$4,810 (−0.5%)

$420,648 + $308,652

$729,300

2015

$4,835 (−0.1%)

$215,437 + $169,268

$384,705

2014

$4,840 (+1.2%)

$208,045 + $163,461

$371,506

2012

$4,784 (+2.8%)

$207,105 + $162,723

$369,828

2011

$4,652 (+0.8%)

$203,045 + $159,533

$362,578

2010

$4,616 (+0.4%)

$199,064 + $156,405

$355,469

2009

$4,598 (+2.7%)

$197,577 + $155,237

$352,814

2008

$4,475

$198,047 + $155,606

$353,653

Public record

Public record
Zoning

Beds

Baths

Stories

—

Lot width

—

Lot depth

—

Lot size

3,999 Sq. Ft.

Year renovated

1989

Finished Sq. Ft.

1,755

Unfinished Sq. Ft.

—

Total Sq. Ft.

1,755

Year built

1989

Style

Single Family Residential

County

Los Angeles County

APN

8765009036

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Oct 7, 2026.

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

Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

5/10 Fire Factor

5% chance of being in a wildfire in next 30 years

5/10 Heat Factor

6 days above 99° expected this year, 16 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

7/10 Air Factor

13 unhealthy days expected this year, 14 days in 30 years

Provided by First Street

Historical weather

Walnut, CA • 91789

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 9.5 hours in June and 6.9 hours in December, placing it above the U.S. average for solar exposure.

9.5 hrs

6.9 hrs

JuneDecember

Provided by Shadowmap

Redfin Estimate for 20774 Timberline

$1,224,007

$16K under list price of $1.24M

Nearby comparable homes

The Redfin Estimate uses 6 recent nearby sales, priced between $1.1M to $1.3M.

SOLD JUL 28, 2026
$1,100,000 Last sold price
3 beds3 baths1,578 sq ft
20814 E Boulder, Walnut, CA 91789
$10/sq ft
larger lot
2 years older
SOLD NOV 25, 2025
$1,308,000 Last sold price
3 beds2.5 baths1,755 sq ft
20834 E Boulder, Walnut, CA 91789
$38/sq ft
larger lot
2 years older
SOLD SEP 9, 2026
$1,234,520 Last sold price
4 beds2.5 baths1,823 sq ft
2115 Tierra Loma Dr, Diamond Bar, CA 91765
$30/sq ft
larger lot
26 years older
SOLD JUL 31, 2026
$1,265,000 Last sold price
5 beds4 baths2,334 sq ft
21408 Running River Ct, Diamond Bar, CA 91765
$165/sq ft
larger lot
12 years older
SOLD MAY 21, 2026
$1,220,000 Last sold price
4 beds2 baths2,000 sq ft
21039 Glenwold Dr, Walnut, CA 91789
WeTrust Realty
$97/sq ft
larger lot
10 years older
SOLD MAY 12, 2026
$1,200,000 Last sold price
4 beds3 baths2,015 sq ft
19533 Galeview, Rowland Heights, CA 91748
$111/sq ft
larger lot
11 years older

Rental earnings

Est. $3,738 per month, based on comparable rentals

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