B
Seller's Agent in 2020
Brook Terhune
Corcoran Icon Properties
509 Walnut St Petaluma, CA 94952
Oakhill Brewster NeighborhoodEstimated Value: $1,590,000 - $2,055,000
4
Beds
2
Baths
3,146
Sq Ft
$605/Sq Ft
Est. Value
Highlights
- City View
- 0.36 Acre Lot
- Retreat
- McKinley Elementary School Rated A-
- Private Lot
- 5-minute walk to Oak Hill Park
About This Home
As of September 2020One of a kind Mediterranean jewel in the heart of historic Petaluma! 509 Walnut offers a mix of old-world elegance, unparalleled views, multiple private outdoor spaces and an expansive lot and garden, all within a short walk to downtown Petaluma. Large arched windows flood the elegant floor plan with light, taking full advantage of the stunning views. Throughout the house, 1930's charm exudes: incredible oak floors, ironwork railings, arched panel doors and exquisite lighting fixtures, all original and beautifully preserved. The two bathrooms have been tastefully remodeled with custom cabinetry, heated floors, open showers and a soaking tub. A grand staircase leads up to the front of the house, while a private drive offers easy access to the back. Situated in the desirable Oakhill Brewster neighborhood of Petaluma, the majestic style and scale of the house, combined with its stellar build quality and views, make this a truly rare find.
Last Agent to Sell the Property
Brook Terhune
Corcoran Icon Properties License #01441911 Listed on: 08/07/2020
Home Details
Home Type
- Single Family
Year Built
- Built in 1930
Lot Details
- 0.36 Acre Lot
- Private Lot
Parking
- 1 Car Detached Garage
- 6 Open Parking Spaces
- Shared Driveway
Property Views
- City
- Ridge
- Hills
Home Design
- Frame Construction
- Tile Roof
- Stucco
Interior Spaces
- 3,146 Sq Ft Home
- 2-Story Property
- 1 Fireplace
- Living Room
- Formal Dining Room
- Home Office
- Partial Basement
Flooring
- Wood
- Tile
Bedrooms and Bathrooms
- 4 Bedrooms
- Retreat
- Main Floor Bedroom
- 2 Full Bathrooms
- Tile Bathroom Countertop
- Bathtub
- Separate Shower
Laundry
- Laundry closet
- Dryer
- Washer
Additional Features
- Shed
- Floor Furnace
Community Details
- Built by Walter Singleton
Listing and Financial Details
- Assessor Parcel Number 006-144-007-000
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
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
Listed on
Aug 7, 2020
Closed on
Sep 2, 2020
Sold by
Hammer Zachary
Bought by
Watson William
Seller's Agent
Brook Terhune
Corcoran Icon Properties
Buyer's Agent
Peg & Jeremy King
Livxplore Real Estate & Lifest
List Price
$1,680,000
Sold Price
$1,680,000
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Avg. Annual Appreciation
2.30%
Purchase Details
Closed on
Mar 10, 2011
Sold by
Traversi David Charles and Alejos Diane M
Bought by
Hammer Zachary
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Home Values in the Area
Average Home Value in this Area
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
Property History
| Date | Event | Price | List to Sale | Price per Sq Ft |
|---|---|---|---|---|
| 09/04/2020 09/04/20 | Sold | $1,680,000 | 0.0% | $534 / Sq Ft |
| 08/16/2020 08/16/20 | Pending | -- | -- | -- |
| 08/07/2020 08/07/20 | For Sale | $1,680,000 | -- | $534 / Sq Ft |
Source: Bay Area Real Estate Information Services (BAREIS)
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 | $19,257 | $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
Agents Affiliated with this Home
-
-
Peg & Jeremy King
Buyer's Agent in 2020
Peg & Jeremy King
Livxplore Real Estate & Lifest
(707) 338-8821
26 in this area
332 Total Sales
Map
Source: Bay Area Real Estate Information Services (BAREIS)
MLS Number: 22017051
APN: 006-144-007
Disclaimer: Certain information contained herein is derived from information provided by parties other than Homes.com. All information provided is deemed reliable, but is not guaranteed to be accurate and should be independently verified.
Listing information deemed reliable but not guaranteed. Copyright 2026 Bay Area Real Estate Information Services, Inc. All Right Reserved.
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