40 Castle Rock Dr
Mill Valley, CA 94941
2 bd 1 ba 1,334 sqft Built 1911 Lot 13,964 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 | $601,496 | $819,128 | $1,420,624 | $20,208 |
| 2024 | $601,496 | $819,128 | $1,420,624 | $19,534 |
| 2023 | $578,143 | $787,326 | $1,365,469 | $19,107 |
| 2022 | $566,808 | $771,889 | $1,338,697 | $18,378 |
| 2021 | $555,698 | $756,759 | $1,312,457 | $17,977 |
| 2020 | $550,000 | $749,000 | $1,299,000 | $17,790 |
| 2019 | $342,767 | $716,310 | $1,059,077 | $15,152 |
| 2018 | $336,049 | $702,270 | $1,038,319 | $14,663 |
| 2017 | $329,460 | $688,500 | $1,017,960 | $14,432 |
| 2016 | $323,000 | $675,000 | $998,000 | $13,747 |
| 2015 | $316,250 | $537,625 | $853,875 | $12,164 |
| 2014 | $275,000 | $467,500 | $742,500 | $10,518 |
| 2013 | $250,000 | $425,000 | $675,000 | $9,763 |
| 2012 | $250,000 | $425,000 | $675,000 | $9,457 |
| 2010 | $250,000 | $425,000 | $675,000 | $9,884 |
| 2009 | $273,000 | $455,000 | $728,000 | $11,336 |
| 2008 | $337,620 | $535,500 | $873,120 | $10,587 |
| 2006 | $290,791 | $491,858 | $782,649 | $8,196 |
Property facts
Year built
1911
Property type
single_family
Stories
2
Beds
2
Baths
1
Living area
1,334 sqft
Lot size
13,964 sqft
ZIP code
94941
City
Mill Valley
Street
Castle Rock Dr
Coordinates
37.90008, -122.55788
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 40 Castle Rock Dr last sell?
No public-record sale is on file for 40 Castle Rock Dr.
What is the current tax assessment for 40 Castle Rock Dr?
The most recent total assessment for 40 Castle Rock Dr (year 2025) is $1,420,624 with $20,208 in property tax.
When was 40 Castle Rock Dr built?
40 Castle Rock Dr was built in 1911.
How does 40 Castle Rock Dr compare to others on Castle Rock Dr?
We track 4 other properties on Castle Rock Dr. Browse the list under "Other properties on Castle Rock Dr" to compare beds, baths, and sale history.
What are the property facts for 40 Castle Rock Dr?
40 Castle Rock Dr is a 2 bed, 1 bath, 1,334 sqft, 13,964 sqft lot single_family.
Is 40 Castle Rock Dr a flip candidate?
No — 40 Castle Rock Dr does not appear in our flips dataset.
Is 40 Castle Rock Dr a tax-appeal candidate?
No — 40 Castle Rock Dr 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 Castle Rock Dr