12 Shell Rd
Mill Valley, CA 94941
4 bd 3 ba Built 1939 Lot 8,699 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 | $1,511,260 | $870,090 | $2,381,350 | $32,894 |
| 2024 | $1,511,260 | $870,090 | $2,381,350 | $26,525 |
| 2023 | $986,414 | $836,308 | $1,822,722 | $26,132 |
| 2022 | $967,076 | $819,912 | $1,786,988 | $25,320 |
| 2021 | $948,115 | $803,836 | $1,751,951 | $24,944 |
| 2020 | $938,400 | $795,600 | $1,734,000 | $24,911 |
| 2019 | $920,000 | $780,000 | $1,700,000 | $24,376 |
| 2018 | $377,817 | $520,789 | $898,606 | $14,886 |
| 2017 | $370,410 | $510,579 | $880,989 | $14,179 |
| 2016 | $363,149 | $500,570 | $863,719 | $13,368 |
| 2015 | $357,695 | $493,051 | $850,746 | $12,133 |
| 2014 | $350,688 | $483,393 | $834,081 | $11,738 |
| 2013 | $349,106 | $481,212 | $830,318 | $11,706 |
| 2012 | $342,261 | $471,778 | $814,039 | $11,209 |
| 2010 | $335,551 | $462,528 | $798,079 | $10,687 |
| 2009 | $333,044 | $459,073 | $792,117 | $10,228 |
| 2008 | $327,292 | $451,143 | $778,435 | $9,715 |
| 2006 | $320,875 | $442,297 | $763,172 | $9,329 |
Property facts
Year built
1939
Property type
single_family
Stories
1
Beds
4
Baths
3
Living area
—
Lot size
8,699 sqft
ZIP code
94941
City
Mill Valley
Street
Shell Rd
Coordinates
37.90698, -122.51686
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 12 Shell Rd last sell?
No public-record sale is on file for 12 Shell Rd.
What is the current tax assessment for 12 Shell Rd?
The most recent total assessment for 12 Shell Rd (year 2025) is $2,381,350 with $32,894 in property tax.
When was 12 Shell Rd built?
12 Shell Rd was built in 1939.
How does 12 Shell Rd compare to others on Shell Rd?
We track 8 other properties on Shell Rd. Browse the list under "Other properties on Shell Rd" to compare beds, baths, and sale history.
What are the property facts for 12 Shell Rd?
12 Shell Rd is a 4 bed, 3 bath, 8,699 sqft lot single_family.
Is 12 Shell Rd a flip candidate?
No — 12 Shell Rd does not appear in our flips dataset.
Is 12 Shell Rd a tax-appeal candidate?
No — 12 Shell Rd is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
+0.2%
Implied 1-yr
+1.0%
2026 Q2
$2.17M
2026 Q3
$2.18M
ZIP 94941 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Shell Rd