NOT LISTED FOR SALE

509 Walnut St Petaluma, CA 94952

Oakhill Brewster Neighborhood

Estimated Value: $1,536,000 - $2,304,703

4 Beds
2 Baths
3,146 Sq Ft
$618/Sq Ft Est. Value

About This Home

This home is located at 509 Walnut St, Petaluma, CA 94952 and is currently estimated at $1,944,676, approximately $618 per square foot. 509 Walnut St is a home located in Sonoma County with nearby schools including McKinley Elementary School, Petaluma Junior High School, and Petaluma High School.

Ownership History

Date Name Owned For Owner Type

Purchase Details

Closed on
Sep 12, 2025
Sold by
William P Watson Family Trust and Watson Theodore
Bought by
William P Watson Family Trust and Dyrlund
Current Estimated Value
$1,944,676

Purchase Details

Closed on
Mar 9, 2022
Sold by
William Watson
Bought by
William P Watson Family Trust

Purchase Details

Closed on
Dec 14, 2021
Sold by
William Watson
Bought by
Watson William

Purchase Details

Closed on
Sep 2, 2020
Sold by
Hammer Zachary
Bought by
Watson William

Purchase Details

Closed on
Mar 10, 2011
Sold by
Traversi David Charles and Alejos Diane M
Bought by
Hammer Zachary
Source: Public Records

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

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.

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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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Home Values in the Area

Source: Public Records

Average Home Value in this Area

Source: Public Records

Purchase History

Date Buyer Sale Price Title Company
William P Watson Family Trust -- None Listed On Document
William P Watson Family Trust -- Bridget Mackay Apc
Watson William -- Fidelity National Title
Watson William $1,680,000 Fidelity National Title Co
Hammer Zachary $700,000 First American Title Company
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 $21,312 $1,866,600 $555,900 $1,310,700
2024 $19,257 $1,782,827 $713,130 $1,069,697
2023 $19,257 $1,747,871 $699,148 $1,048,723
2022 $18,776 $1,713,600 $685,440 $1,028,160
2021 $18,418 $1,680,000 $672,000 $1,008,000
2020 $9,276 $820,025 $292,865 $527,160
2019 $9,161 $803,947 $287,123 $516,824
2018 $9,126 $788,185 $281,494 $506,691
2017 $8,935 $772,731 $275,975 $496,756
2016 $8,728 $757,580 $270,564 $487,016
2015 $8,606 $746,201 $266,500 $479,701
2014 $8,565 $731,585 $261,280 $470,305
Source: Public Records

Map

California Sonoma County Petaluma 94952 Oakhill Brewster

509 Walnut St, Petaluma, CA

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