$1,308,000
SOLD NOV 25, 2025

20834 E Boulder Ln Walnut, CA 91789

3 Beds
2.5 Baths
1,755 Sq Ft
8,049 Sq Ft Lot

Recently Sold

$745 Per Sq Ft

2% Below List Price

16 Days on Market

Highlights

  • RV Access or Parking
  • City Lights View
  • Mediterranean Architecture
  • Castle Rock Elementary School Rated A
  • Deck
  • Corner Lot

About This Home

As of November 2025

Beautifully remodeled cul-de-sac home on an elevated lot with stunning Diamond Bar hill views! This 3-bed, 2.5-bath residence offers modern elegance with upgraded designer wood flooring, soaring ceilings, and abundant natural light. The chef-inspired kitchen features stainless steel appliances, double oven, quartz countertops, a center island with storage, and modern lighting. The spacious primary suite includes hillside views, a custom walk-in closet, and a luxurious bath with walk-in shower and dual sinks. Enjoy peace of mind with updated HVAC/furnace and extensive renovations throughout. One of the largest lots in the neighborhood, the expansive backyard offers ADU and pool potential, perfect for entertaining or relaxing in privacy. Located in the award-winning Walnut Valley Unified School District, close to Diamond Bar High, Ronald Reagan Park, and the 60 & 57 freeways.

Last Agent to Sell the Property

Anna Lee

Dream ERE Brokerage Email: aina2070@gmail.com License #01966818 Listed on: 10/11/2025

Last Buyer's Agent

Tim Hui

GRAND CITY REALTY, INC. License #01764488

Home Details

Home Type

  • Single Family

Est. Annual Taxes

  • $6,945

Year Built

  • Built in 1987 | Remodeled

Lot Details

  • 8,049 Sq Ft Lot
  • Cul-De-Sac
  • Corner Lot

HOA Fees

  • $9 Monthly HOA Fees

Parking

  • 2 Car Direct Access Garage
  • Parking Available
  • Front Facing Garage
  • Driveway
  • RV Access or Parking

Property Views

  • City Lights
  • Hills

Home Design

  • Mediterranean Architecture
  • Entry on the 1st floor
  • Tile Roof

Interior Spaces

  • 1,755 Sq Ft Home
  • 2-Story Property
  • Recessed Lighting
  • Family Room with Fireplace
  • Laminate Flooring

Kitchen

  • Eat-In Kitchen
  • Double Oven
  • Gas Oven
  • Gas Cooktop
  • Dishwasher
  • Kitchen Island
  • Quartz Countertops

Bedrooms and Bathrooms

  • 3 Bedrooms
  • All Upper Level Bedrooms
  • Walk-In Closet
  • Upgraded Bathroom
  • Quartz Bathroom Countertops

Laundry

  • Laundry Room
  • Gas And Electric Dryer Hookup

Home Security

  • Carbon Monoxide Detectors
  • Fire and Smoke Detector

Outdoor Features

  • Deck
  • Patio

Schools

  • Diamond Bar High School

Utilities

  • Central Heating and Cooling System
  • Natural Gas Connected

Listing and Financial Details

  • Tax Lot 88
  • Tax Tract Number 43760
  • Assessor Parcel Number 8765019050
  • $1,197 per year additional tax assessments

Community Details

Overview

  • Diamondbar Association

Recreation

  • Park

Home Details

Home Type

Single Family

Est. Annual Taxes

$6,945

Year Built

Built in 1987 | Remodeled

Lot Details

0

HOA Fees

$9 per month

Parking

2

Listing Details

  • Structure Type: House
  • Assessments: Yes
  • Property Attached: No
  • Security: Carbon Monoxide Detector(s), Fire and Smoke Detection System
  • View: Yes
  • Architectural Style: Mediterranean
  • Property Condition: Updated/Remodeled
  • Property Sub Type: Single Family Residence
  • Property Type: Residential
  • Parcel Number: 8765019050
  • Year Built: 1987
  • Special Features: None

Interior Features

  • Fireplace: Yes
  • Living Area: 1755.00 Square Feet
  • Interior Amenities: Quartz Counters, Recessed Lighting
  • Stories: 2
  • Common Walls: No Common Walls
  • Flooring: Laminate
  • Appliances: Yes
  • Full Bathrooms: 2
  • Half Bathrooms: 1
  • Total Bedrooms: 3
  • Eating Area: In Kitchen
  • Entry Level: 1
  • Fireplace Features: Family Room
  • Levels: Two
  • Main Level Bathrooms: 1
  • Price Per Square Foot: 745.30
  • Room Type: All Bedrooms Up, Walk-In Closet
  • Bathroom Features: Quartz Counters, Upgraded
  • Room Kitchen Features: Kitchen Island

Exterior Features

  • Patio: Yes
  • View: City Lights, Hills
  • Patio And Porch Features: Deck, Patio
  • Pool Private: No
  • Roof: Tile

Garage/Parking

  • Attached Garage: Yes
  • Garage Spaces: 2.00
  • Parking: Yes
  • Parking Features: Direct Garage Access, Driveway, Garage Faces Front, RV Access/Parking
  • Total Parking Spaces: 2.00

Utilities

  • Utilities: Electricity Connected, Natural Gas Connected, Sewer Connected, Water Connected
  • Heating: Yes
  • Laundry: Yes
  • Appliances: Dishwasher, Gas Oven, Gas Cooktop
  • Heating Type: Central
  • Laundry Features: Gas & Electric Dryer Hookup
  • Sewer: Public Sewer
  • Water Source: Public
  • Cooling: Central Air
  • Cooling: Yes

Condo/Co-op/Association

  • Association: No
  • Amenities: Sewer
  • Association Fee: 55.00
  • Association Fee Frequency: Semi-Annually
  • Association Name: Diamondbar
  • Phone: 00000000
  • Senior Community: No
  • Community Features: Park, Sidewalks
  • Association Management: HOA

Schools

  • High School: Diamond Bar
  • High School2: DIABAR

Lot Info

  • Additional Parcels: No
  • Land Lease: No
  • Lot Features: Corner Lot, Cul-De-Sac
  • Lot Size Sq Ft: 8049.00
  • Lot Size Acres: 0.1848

Multi Family

  • Lease Considered: No
  • Lot Size Area: 8049.0000 Square Feet
  • Number Of Units Total: 1

Tax Info

  • Tax Lot: 88
  • Tax Tract Number: 43760
  • TaxOtherAnnualAssessmentAmount: 1197.00

Matterport 3D Tour

Ownership History

Date Name Owned For Owner Type

Purchase Details

Closed on
Jun 18, 2025
Sold by
Shiode Junichi
Bought by
Ksm Solution Ventures Llc and Masarai Inc

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$879,750
Outstanding Balance
$591,522
Interest Rate
6.89%
Mortgage Type
Construction
Estimated Equity
$729,649
Source: Public Records

Range of Values:

--
Value Increase
--
Percent Increase
--
Adjusted for Inflation
Collateral Analytics

Collateral Analytics Collateral Analytics AVMs (Automated Valuation Model) employ a number of statistical approaches combined with neighborhood-specific comparable selection guarantees the most up-to-date and precise valuations.

Not Available

Collateral Analytics does not have data for the current month. Please view the chart for historical values.

ICE

ICE Mortgage Technology ICE Mortgage Technology’s AVM (Automated Valuation Model) is a state-of-the-art online residential property valuation tool that provides a quick and accurate estimate of the value of almost any home in the U.S.

Not Available

ICE Mortgage Technology does not have data for the current month. Please view the chart for historical values.

First American

First American First American Data & Analytics’ next-generation AVM combines unrivaled data assets with a blended ensemble of valuation models to produce highly accurate, reliable valuations you can trust.

Not Available

First American does not have data for the current month. Please view the chart for historical values.

Quantarium

Quantarium Quantarium’s valuation service, repeatedly proven the industry’s most accurate and comprehensive, is supercharged with a self-learning and auto-tuning AI engine that continually becomes smarter and more accurate as it processes daily inputs from the industry’s leading RE data lake.

Not Available

Quantarium does not have data for the current month. Please view the chart for historical values.

Average Value
Not Available
List Price
Sold Price
Create a Home Valuation Report for This Property
The Home Valuation Report is an in-depth analysis detailing your home's value as well as a comparison with similar homes in the area

Home Values in the Area

Source: Public Records

Average Home Value in this Area





Source: Public Records

Purchase History

Date Type Sale Price Title Company
Grant Deed $935,000 Wfg National Title
Source: Public Records

Mortgage History

Date Status Loan Amount Loan Type
Open $879,750 Construction
Source: Public Records

Property History

Date Event Price List to Sale Price per Sq Ft
11/25/2025 11/25/25 Sold $1,308,000 -2.4% $745 / Sq Ft
10/27/2025 10/27/25 Pending -- -- --
10/11/2025 10/11/25 For Sale $1,340,000 -- $764 / Sq Ft
Source: California Regional Multiple Listing Service (CRMLS)

Tax History Compared to Growth

Source: Public Records

Tax History

Year Tax Paid Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. Land Improvement
2025 $6,945 $512,790 $260,637 $252,153
2024 $6,945 $502,736 $255,527 $247,209
2023 $6,777 $492,879 $250,517 $242,362
2022 $6,630 $483,215 $245,605 $237,610
2021 $6,497 $473,741 $240,790 $232,951
2019 $6,004 $459,692 $233,649 $226,043
2018 $5,769 $450,679 $229,068 $221,611
2016 $5,359 $433,180 $220,174 $213,006
2015 $5,388 $426,674 $216,867 $209,807
2014 $5,394 $418,317 $212,619 $205,698
Source: Public Records

Agents Affiliated with this Home

  • Section Image
  • Section Image
See All Agents

Map

Source: California Regional Multiple Listing Service (CRMLS)

MLS Number: PW25234955

California Regional Multiple Listing Service (CRMLS)

APN: 8765-019-050