NOT LISTED FOR SALE

20729 Timberline Ln Walnut, CA 91789

Diamond Bar Area

Estimated Value: $1,141,000 - $1,236,000

3 Beds
3 Baths
1,835 Sq Ft
$646/Sq Ft Est. Value

About This Home

This home is located at 20729 Timberline Ln, Walnut, CA 91789 and is currently estimated at $1,186,021, approximately $646 per square foot. 20729 Timberline Ln is a home located in Los Angeles County with nearby schools including Castle Rock Elementary School, South Pointe Middle School, and Diamond Bar High School.

Range of Values:

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Value Increase
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Percent Increase
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Adjusted for Inflation
Collateral Analytics

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ICE

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First American

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Quantarium

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Average Value
Not Available
List Price
Sold Price
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Ownership History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Name Owned For Owner Type

Purchase Details

Closed on
Oct 1, 2025
Sold by
Park Kyung Sook
Bought by
Current Estimated Value
$1,160,338

Purchase Details

Closed on
Jun 16, 2004
Sold by
Park Hong Soon
Bought by
Park Kyung Sook

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$29,500
Interest Rate
6.27%
Mortgage Type
Unknown

Purchase Details

Closed on
May 17, 2004
Sold by
Helmich Erwin D and Helmich Mary H
Bought by
Park Kyung Sook

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$29,500
Interest Rate
6.27%
Mortgage Type
Unknown

Purchase Details

Closed on
May 13, 1999
Sold by
Wong Emily S Y and The Emily Sing Ying Wong Revoc
Bought by
Helmich Erwin D and Helmich Mary H

Purchase Details

Closed on
Jun 13, 1996
Sold by
Wong Emily S
Bought by
Wong Emily S Y and Wong Emily Sing Ying
Source: Public Records

Home Values in the Area

Source: Public Records

Average Home Value in this Area

Source: Public Records

Agents Specializing in Walnut, CA

  • Khanh Oberley Real Estate Agent - Douglas Elliman of CA, Inc.

    Khanh Oberley

    Douglas Elliman of CA, Inc.

    (424) 407-8581

    43 Total Sales

    2 in Diamond Bar

    $910,000 Price Range

    Khanh Oberley
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  • Alejandro Martinez Real Estate Agent - LPT Realty, Inc

    Alejandro Martinez

    LPT Realty, Inc

    (626) 593-8719

    26 Total Sales

    1 in Diamond Bar

    $555,000 Price

    Alejandro Martinez
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  • Leticia Sotomayor Real Estate Agent - Real Brokerage Technologies, I

    Leticia Sotomayor

    Real Brokerage Technologies, I

    (909) 479-2558

    78 Total Sales

    2 in Diamond Bar

    $725K - $945K Price Range

    Leticia Sotomayor
     Section Image
  • CIERA SIMS-BOTSFORD Real Estate Agent - ANOMALY REAL ESTATE

    CIERA SIMS-BOTSFORD

    ANOMALY REAL ESTATE

    (951) 749-9183

    206 Total Sales

    2 in Diamond Bar

    $425K - $1.4M Price Range

    CIERA SIMS-BOTSFORD
     Section Image
  • Kenneth Tananan Real Estate Agent - Re/Max Top Producers

    Kenneth Tananan

    Re/Max Top Producers

    (909) 450-8850

    12 Total Sales

    2 in Diamond Bar

    $1,380,000 Price Range

    Kenneth Tananan
     Section Image
  • Charles Chamorro Real Estate Agent - Che Hill

    Charles Chamorro

    Che Hill

    (562) 685-8867

    75 Total Sales

    1 in Diamond Bar

    $865,000 Price

    Charles Chamorro
     Section Image
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Purchase History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Buyer Sale Price Title Company
-- Accommodation/Courtesy Recordi
Park Kyung Sook -- Chicago
Park Kyung Sook $590,000 Chicago
Helmich Erwin D $270,000 Chicago Title
Wong Emily S Y -- --
Source: Public Records

Mortgage History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Status Borrower Loan Amount
Previous Owner $90,000
Previous Owner Park Kyung Sook $528,000
Previous Owner Park Kyung Sook $125,000
Previous Owner Park Kyung Sook $59,000
Previous Owner Park Kyung Sook $29,500
Previous Owner Park Kyung Sook $472,000
Previous Owner Helmich Edwin D $188,000
Previous Owner Helmich Erwin D $195,000
Previous Owner Helmich Erwin D $19,000
Source: Public Records

Tax History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

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
2026 $11,200 $855,617 $478,566 $377,051
2025 $11,200 $838,841 $469,183 $369,658
2024 $10,708 $822,394 $459,984 $362,410
2023 $10,448 $806,269 $450,965 $355,304
2022 $10,226 $790,461 $442,123 $348,338
2021 $10,033 $774,962 $433,454 $341,508
2019 $9,427 $751,979 $420,599 $331,380
2018 $9,084 $737,235 $412,352 $324,883
2016 $8,434 $708,609 $396,341 $312,268
2015 $8,485 $697,966 $390,388 $307,578
2014 $8,077 $648,000 $363,000 $285,000
Source: Public Records

Map

California Los Angeles County Walnut 91789

20729 Timberline Ln, Walnut, CA

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