20 Walnut Ave
Mill Valley, CA 94941
4 bd 3 ba 2,486 sqft Built 1909 Lot 10,500 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 | $1,743,000 | $2,499,000 | $4,242,000 | $51,679 |
| 2024 | $1,743,000 | $2,499,000 | $4,242,000 | $49,907 |
| 2023 | $664,895 | $1,024,882 | $1,689,777 | $26,211 |
| 2022 | $641,859 | $1,004,790 | $1,646,649 | $21,932 |
| 2021 | $624,376 | $985,095 | $1,609,471 | $23,189 |
| 2020 | $617,976 | $975,000 | $1,592,976 | $22,882 |
| 2019 | $605,862 | $955,882 | $1,561,744 | $21,211 |
| 2018 | $593,986 | $937,140 | $1,531,126 | $20,377 |
| 2017 | $582,341 | $918,765 | $1,501,106 | $22,847 |
| 2016 | $570,926 | $900,750 | $1,471,676 | $22,769 |
| 2015 | $562,353 | $887,220 | $1,449,573 | $20,939 |
| 2014 | $551,338 | $869,842 | $1,421,180 | $19,437 |
| 2013 | $548,850 | $865,912 | $1,414,762 | $18,485 |
| 2012 | $538,091 | $848,940 | $1,387,031 | $17,477 |
| 2010 | $527,542 | $832,297 | $1,359,839 | $15,246 |
| 2009 | $404,497 | $826,080 | $1,230,577 | $14,985 |
| 2008 | $387,708 | $811,815 | $1,199,523 | $14,205 |
| 2006 | $380,108 | $795,900 | $1,176,008 | $13,671 |
Property facts
Year built
1909
Property type
single_family
Stories
—
Beds
4
Baths
3
Living area
2,486 sqft
Lot size
10,500 sqft
ZIP code
94941
City
Mill Valley
Street
Walnut Ave
Coordinates
37.90300, -122.54021
Comparable properties nearby
Frequently asked questions
When did 20 Walnut Ave last sell?
No public-record sale is on file for 20 Walnut Ave.
What is the current tax assessment for 20 Walnut Ave?
The most recent total assessment for 20 Walnut Ave (year 2025) is $4,242,000 with $51,679 in property tax.
When was 20 Walnut Ave built?
20 Walnut Ave was built in 1909.
How does 20 Walnut Ave compare to others on Walnut Ave?
We track 8 other properties on Walnut Ave. Browse the list under "Other properties on Walnut Ave" to compare beds, baths, and sale history.
What are the property facts for 20 Walnut Ave?
20 Walnut Ave is a 4 bed, 3 bath, 2,486 sqft, 10,500 sqft lot single_family.
Is 20 Walnut Ave a flip candidate?
No — 20 Walnut Ave does not appear in our flips dataset.
Is 20 Walnut Ave a tax-appeal candidate?
No — 20 Walnut Ave is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
-2.0%
Implied 1-yr
-7.9%
2026 Q2
$1.91M
2026 Q3
$1.87M
ZIP 94941 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Walnut Ave