509 Walnut St
Petaluma, CA 94952
4 bd 2 ba 3,146 sqft Built 1930 Lot 15,682 sqft single_family
No recorded sales
Location
Timeline: Sale, Listing & Tax History
Recorded events
No recorded events
No sale or listing events are on file for this property.
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $1,310,700 | $555,900 | $1,866,600 | $21,311 |
| 2024 | $1,310,700 | $555,900 | $1,866,600 | $19,257 |
| 2023 | $1,048,723 | $699,148 | $1,747,871 | $18,941 |
| 2022 | $1,028,160 | $685,440 | $1,713,600 | $18,776 |
| 2021 | $1,008,000 | $672,000 | $1,680,000 | $18,418 |
| 2020 | $527,160 | $292,865 | $820,025 | $9,275 |
| 2019 | $516,824 | $287,123 | $803,947 | $9,161 |
| 2018 | $506,691 | $281,494 | $788,185 | $9,126 |
| 2017 | $496,756 | $275,975 | $772,731 | $8,934 |
| 2016 | $487,016 | $270,564 | $757,580 | $8,727 |
| 2015 | $479,701 | $266,500 | $746,201 | $8,606 |
| 2014 | $470,305 | $261,280 | $731,585 | $8,564 |
| 2013 | $468,180 | $260,100 | $728,280 | $8,237 |
| 2012 | $459,000 | $255,000 | $714,000 | $8,052 |
| 2010 | $115,591 | $47,459 | $163,050 | $1,794 |
| 2009 | $115,001 | $47,217 | $162,218 | $1,804 |
| 2008 | $112,747 | $46,292 | $159,039 | $1,772 |
| 2007 | $110,537 | $45,385 | $155,922 | $1,725 |
Property facts
Year built
1930
Property type
single_family
Stories
2
Beds
4
Baths
2
Living area
3,146 sqft
Lot size
15,682 sqft
ZIP code
94952
City
Petaluma
Street
Walnut St
Coordinates
38.23884, -122.64854
Comparable properties nearby
Frequently asked questions
When did 509 Walnut St last sell?
No public-record sale is on file for 509 Walnut St.
What is the current tax assessment for 509 Walnut St?
The most recent total assessment for 509 Walnut St (year 2025) is $1,866,600 with $21,311 in property tax.
When was 509 Walnut St built?
509 Walnut St was built in 1930.
How does 509 Walnut St compare to others on Walnut St?
We track 8 other properties on Walnut St. Browse the list under "Other properties on Walnut St" to compare beds, baths, and sale history.
What are the property facts for 509 Walnut St?
509 Walnut St is a 4 bed, 2 bath, 3,146 sqft, 15,682 sqft lot single_family.
Is 509 Walnut St a flip candidate?
No — 509 Walnut St does not appear in our flips dataset.
Is 509 Walnut St a tax-appeal candidate?
No — 509 Walnut St is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
+4.7%
Implied 1-yr
+18.9%
2026 Q3
$1.78M
2026 Q4
$1.84M
ZIP 94952 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Walnut St