Sold185d on marketHistoric · 89 yrs
20 Shell Road
Mill Valley, CA, 94941 • Alto • Marin County
$2,505,000
$1444/sqft
3Beds
2Baths
1,735Sqft
0.44 acLot
1937Built
Property DNA
Character Home
Built 1937 · 89 years of history
1 Fireplace
Living Room · Stone · Wood Burning
2-Car Garage
Side By Side · Uncovered Parking Spaces 2+ · Unpaved
Tile & Wood Floors
Quality flooring throughout
This home is getting attention
Listed 185 days ago · 49 views
Market activity
Demand and pricing signals for this listing
49 views
People checking out this listing
185 days on market
Established listing
$1,444/sqft
Price per square foot
Selling Soon Prediction
HighThis home ranks in the top 17% of listings most likely to go under contract soon, based on market activity and demand signals.
Likelihood score
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About this home
Single Family · Built 1937 · Historic
Wonderful 1937 home situated on a 19,000 sq ft level corner lot. 3 bedrooms, 1 1/4 baths. Major repairs done to the framing, footings, foundation, entry stairs and more in 2009-2010. A rare find with so many possibilites. Convenient to shopping, freeway, downtown Mill Valley, etc.
Estimated monthly payment
Based on current rates
$15,899/month
Principal & Interest$12,559
Property Tax$2,505
Insurance$835
Down payment20% ($501,000)
3%50%
Est. 6.42% rate · 30yr fixed · $2,004,000 loan
Full calculator →At a glance
Key facts and listing details
TypeSingle Family Residence
Year Built1937
HeatingCentral, Fireplace(s)
CoolingNone
Parking2 Garage spaces
Lot0.44 Acres
Property
Home typeSingle Family
Sub-typeSingle Family Residence
Year built1937
Stories2
Systems
HeatingCentral, Fireplace(s)
CoolingNone
RoofComposition
Water / SewerPublic, Water District / Public Sewer
Parking & Outdoor
ParkingSide By Side, Uncovered Parking Spaces 2+, Unpaved
Garage2 spaces
BasementPartial
Fireplaces1
Lot0.44 Acres
Location & Tax
NeighborhoodAlto
Annual tax$5,512
Parcel03307116
Bathrooms & Fees
Full baths1
Features & details
10 categories of property features
Interior Features
Appliances
Free-Standing Refrigerator
Dryer
Washer
Flooring
Carpet
Linoleum
Parquet
Tile
Wood
Heating
Central
Fireplace(s)
Cooling
None
Laundry
Inside Room
Fireplace
Living Room
Stone
Wood Burning
Windows
Dual Pane Partial
Exterior Features
Parking
Side By Side
Uncovered Parking Spaces 2+
Unpaved
Lot Features
Corner Lot
Utilities
Public
Room details
6 rooms detailed
Bedroom
Main,UpperBathroom
MainShower Stall(s)TileTub
Dining Room
Formal Room
Family Room
MainKitchen
MainTile Counters
Living Room
MainListing insights
Market data and value estimates
StatusSold
Days on market185
Est. value$2,573,400
Est. rent$7,087/mo
Tax rate1.13%
Price/sqft$1444
On marketSep 16, 2025
PostedSep 16, 2025
Last sold$2,505,000
MLS statusClosed
MLS updatedOct 7, 2025
Tour days6
Views49
How are the schools in Mill Valley?
3 schools rated nearby
Location
Mill Valley, CA, 94941
Price history
3 events
DateEventPrice$/sqftSource
Oct 7, 2025Sold$2,505,000$1,444BAREIS
Sep 30, 2025Pending Sale$1,950,000$1,124BAREIS
Sep 16, 2025Listed For Sale$1,950,000$1,124BAREIS
Sold$2,505,000
Oct 7, 2025•$1,444/sqft•BAREIS
Pending Sale$1,950,000
Sep 30, 2025•$1,124/sqft•BAREIS
Listed For Sale$1,950,000
Sep 16, 2025•$1,124/sqft•BAREIS
Tax history
25 years of records
YearTax paidAssessed value
Apr 11, 2025$5,512$119,518
Apr 11, 2024$5,363$117,174
Apr 11, 2023$5,223$114,877
Apr 11, 2022$5,094$112,625
Apr 11, 2021$4,994$110,391
Apr 11, 2020$5,144$109,260
Apr 11, 2019$4,974$107,118
Apr 11, 2018$4,458$105,018
Apr 11, 2017$4,125$102,959
Apr 11, 2016$3,851$100,941
Apr 11, 2015$3,193$99,424
Apr 11, 2014$3,074$97,477
Apr 11, 2013—$97,036
Apr 11, 2012—$95,134
Apr 11, 2011—$93,269
Apr 11, 2010—$92,573
Apr 11, 2009—$92,793
Apr 11, 2008—$90,974
Apr 11, 2007—$89,189
Apr 11, 2006—$87,442
Apr 11, 2005—$85,727
Apr 11, 2004—$84,047
Apr 11, 2003—$82,506
Apr 11, 2002—$80,889
Apr 11, 2001—$79,303
Nearby homes
Neighborhood details
Local context around this listing
Mill Valley, CA • Marin County
Nearby neighborhoods
AlmonteBayfront/Enchanted Knolls/Shelter RidgeBlithedale CanyonCascade CanyonHomestead ValleyMiller/MolinoScott ValleyStrawberryTamalpais ValleyWarner Canyon/Kite Hill
Nearby cities
Corte MaderaFairfaxKentfieldMill ValleyNovatoPetalumaSan AnselmoSan Rafael
Nearby zip codes
94941949429496594970
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